Emission Recovery Systems for Industrial Plants and Assemblies and Associated Methods

Abstract

Systems and methods for recovering emissions from industrial facilities are disclosed herein. The systems can include an emissions recovery system for use in an industrial facility comprising ducting, a first vent, and a second vent at an opening. The ducting can have a first end region fluidically coupled to a baghouse, and a second end region, opposite the first. The ducting can be configured to operate under a vacuum. The first vent and the second vent can each be fluidically coupled to the second end region of the ducting. The first vent can be positionable at a first distance from the opening, and the second vent can also be positionable at a second distance from the opening. Each of the first and the second vents can be configured to collect emissions particles released from at least the opening.

Description

1 / 70 “Emission Recovery Systems for Industrial Plants and Assemblies and Associated Methods” CROSS-REFERENCE TO RELATED REQUESTS

[001] This application claims the benefit of U.S. Provisional Patent Application 63 / 601,511, filed November 21, 2023, disclosure of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[002] This disclosure is generally directed to emission recovery assemblies, systems and methods for industrial installations. In some embodiments, this disclosure is generally directed to emission recovery systems with multiple vents configured to collect emission particles. FUNDAMENTALS

[003] Coke is a solid source of carbon fuel used to melt and reduce iron ore in steel production. In one process—the Thompson Coking Process—coke is produced by batch feeding pulverized coal into a furnace (e.g., a coke oven) via a coke oven charging system. The furnace is then sealed and heated to high temperatures for twenty-four to forty-eight hours under tightly controlled atmospheric conditions. During this process, the finely crushed coal is devolatilized and forms a molten mass of coke with a predetermined porosity and strength. Once the coke is formed, it must be evacuated (e.g., discharged) from the furnace and the furnace prepared for a subsequent batch.During the preparation process: (i) a coal loading door of the furnace can be opened by a door extractor, (ii) the furnace can be loaded by a pusher loading machine (PCM; for example, pulverized coal can be packed into the furnace) and (iii) the loading door can be closed. Petition 870260046198, dated 05 / 15 / 2026, page 9 / 111 2 / 70

[004] Like other industrial processes, particulate emissions can be released by some coke oven charging systems. For example, particulate matter carried in hot gas emissions can escape the oven when the charging door is opened. Additionally, particulate matter from pulverized coal in the PCM can also enter the air when handled by the PCM. These particles can include lost coal and / or coke material, as well as potentially hazardous pollutants. Furthermore, over the course of a year, traditional coke oven charging operations can lose up to, or more than, 4,000 pounds (e.g., 1815 kg) of coal and / or coke particles.Current emission recovery systems are unable to adequately collect emissions from industrial processes, such as those generated by the coking process, since these traditional systems lack, for example, adequately distributed vacuum pressure; effective positioning of the system's collection vents; and / or adequate system safety, among other deficiencies. Therefore, it is advantageous to improve these systems for better particulate matter capture. BRIEF DESCRIPTION OF THE FIGURES

[005] The features, aspects and advantages of the technology now disclosed can be better understood in relation to the following drawings.

[006] FIG. 1 is a schematic block diagram of an emissions recovery system, configured according to the embodiments of the present technology.

[007] FIGS. 2A and 2B are shown in perspective of a coke oven charging system including an emissions recovery system, configured according to embodiments of the present technology.

[008] FIG. 3 is a cross-sectional side view of selected components of an emissions recovery system, configured according to embodiments of the present technology. Petition 870260046198, dated 05 / 15 / 2026, page 10 / 111 3 / 70

[009] FIG. 4 is a perspective view of selected components of an emissions recovery system, configured according to the embodiments of the present technology.

[010] FIG. 5A is a perspective view of selected components of an emissions recovery system, configured according to the embodiments of the present technology.

[011] FIG. 5B is a side view of selected components of an emissions recovery system, configured according to embodiments of the present technology.

[012] FIG. 5C is a front view of selected components of an emissions recovery system, configured according to the embodiments of the present technology.

[013] FIG. 5D is a front view of selected components of an emissions recovery system, configured according to some embodiments of the present technology.

[014] FIG. 6A is a front perspective view of a vent of an emissions recovery system, configured according to the embodiments of the present technology.

[015] FIG. 6B is a rear perspective view of a vent of an emissions recovery system, configured according to embodiments of the present technology.

[016] FIG. 7A is a front view of a temperature control valve, configured according to embodiments of the present technology.

[017] FIG. 7B is a cross-sectional side view of a temperature control valve, configured according to embodiments of the present technology. Petition 870260046198, dated 05 / 15 / 2026, page 11 / 111 4 / 70

[018] FIG. 8A is a perspective view of a vacuum pump, configured according to embodiments of the present technology.

[019] FIG. 8B is a side view of a vacuum pump, configured according to embodiments of the present technology.

[020] FIG. 9A is a side view of a reservoir, configured according to the embodiments of the present technology.

[021] FIG. 9B is a top view of a reservoir, configured according to the embodiments of the present technology.

[022] FIG. 10A is a top view of selected components of an emissions recovery system, configured according to embodiments of the present technology.

[023] FIG. 10B is a side view of selected components of an emissions recovery system, configured according to embodiments of the present technology.

[024] FIG. 11 is a flow diagram illustrating a method for collecting dust particles during the loading of a coke oven, configured according to embodiments of the present technology.

[025] FIGS. 12A and 12B are seen in perspective of a coke oven charging system including an emissions recovery system, configured according to embodiments of the present technology.

[026] FIG. 12C is a top view of a coke oven charging system including an emissions recovery system, configured in accordance with embodiments of the present technology.

[027] FIG. 13 is a perspective view of the emissions recovery system hood assembly, configured according to the embodiments of the present technology.

[028] FIG. 14 is a perspective view of the hood assembly of the system. Petition 870260046198, dated 05 / 15 / 2026, page 12 / 111 5 / 70 emissions recovery, configured according to the modalities of the present technology.

[029] FIG. 15A is a perspective view of the hood assembly of the emissions recovery system, configured according to the embodiments of the present technology.

[030] FIG. 15B is a side view of the emissions recovery system hood assembly, configured according to the embodiments of the present technology.

[031] FIG. 16 is a perspective view of a brush strip and a support for housing the brush strip, configured according to embodiments of the present technology.

[032] FIG. 17 is a side view of selected components of an emissions recovery system, configured according to embodiments of the present technology.

[033] FIG. 18A is a front perspective view of a coke oven charging system including an emissions recovery system, configured according to embodiments of the present technology.

[034] FIG. 18B is a rear perspective view of the coke oven loading system of FIG. 18A with the selected components removed, configured according to embodiments of the present technology.

[035] One skilled in the relevant art will understand that the features shown in the drawings are for illustrative purposes only and variations, including different and / or additional features and arrangements thereof, are possible. DETAILED DESCRIPTION I. Overview

[036] The modalities of this disclosure refer to recovery systems Petition 870260046198, dated 05 / 15 / 2026, p. 13 / 111 6 / 70 Emission recovery operations for industrial applications. For example, such emission recovery systems can be implemented as stand-alone systems within manufacturing facilities, adjacent to outdoor processing equipment, or with other industrial applications to collect emissions generally present in the surrounding environment. Additionally or alternatively, such emission recovery systems can be implemented as purpose-built systems, incorporated with and / or on top of industrial equipment performing a specific industrial operation. Purpose-built systems can be equipped to collect emissions from specific or targeted portions of the industrial operation that are likely to produce emissions.For example, some emissions recovery systems can be incorporated with a coke oven charging system, designed to collect coal dust and other emissions released from a coke oven and / or by coal in a charging ram.

[037] The embodiments of the present disclosure address at least some of the problems described above regarding the inadequacies of emissions collection. For example, embodiments of the present technology include an emissions recovery system for use in an industrial facility comprising a duct, a first vent, and a second vent in a coke oven opening. The duct may have a first end region fluidly coupled to a bag chamber and a second end region opposite the first end region. The duct may be configured to operate under a vacuum. The first vent may be fluidly coupled to the second end region of the duct and positionable at a first distance from the opening. The second vent may also be fluidly coupled to the second end region of the duct and positionable at a second distance from the opening.Each of the first and second vents can also be configured to collect emitted particles. Petition 870260046198, dated 05 / 15 / 2026, page 14 / 111 7 / 70 of the time, at least from the opening, improving emissions collected in traditional systems, at least with vents positioned more effectively.

[038] In some embodiments, the present technology includes an emissions recovery system for use in an industrial facility comprising a base duct portion and a vent in a coke oven vent, with a first and a second duct branch extending from the base duct portion to the vent. More specifically, the base duct portion may include a first end region coupled to a bag chamber and a second end region opposite the first. The base duct portion may be configured to operate under a vacuum. The vent may include a first end region and a second end region opposite the first. The vent may be positionable at the opening and configured to collect emission particles released therefrom.The first duct branch can extend from the second end region of the base duct portion to the first end region of the vent, and the second duct branch can extend from the second end region of the base duct portion to the second end region of the vent, improving emissions collected in traditional systems, at least with more balanced vacuum pressure.

[039] In some embodiments, the present technology includes an emissions recovery system incorporated into a coking system. For example, the coking system may include a coking oven with a loading door on one loading side thereof and the emissions recovery system. The emissions recovery system may include a duct, a first vent, and a second vent at the loading door. The duct may be fluidly coupled to a bag chamber and a vacuum pump and may include a first duct branch and a second duct branch. The first vent may be at a first distance from the loading door and the second vent Petition 870260046198, dated 05 / 15 / 2026, page 15 / 111 8 / 70 may be at a second distance from the loading port. Furthermore, a first end of the first and second vents may each be fluidly coupled to the first duct branch, and a second end of the first and second vents may each be fluidly coupled to the second duct branch. The coke system may improve emissions collection compared to traditional systems by at least providing balanced vacuum pressure and vent positioning.

[040] In one or more embodiments of the present technology, an emissions recovery system may include, in addition to ducts, a first vent and / or a second vent: (i) one or more additional vents positionable relative to an opening to collect particles from additional emissions; (ii) one or more hood assemblies on one or more vents, each configured to direct emissions to the respective vents; (iii) openings in each vent with controllable size to increase or decrease vent suction; (iv) one or more check valves in the duct to prevent positive pressures from a reservoir from passing into the duct; (v) one or more spark arresters in the duct to extinguish or prevent the ignition of particles within the duct; (vi) one or more temperature control valves to maintain a certain temperature and / or pressure within the duct;(vii) one or more flow restriction valves in the pipeline to equalize the pressure within and / or through one or more vents; (viii) a variable pressure vacuum pump to maintain a certain pressure within the pipeline; and / or (ix) a controller or control system to manage and / or monitor the emissions recovery system, among other features.

[041] Emission recovery systems of the modalities identified above, and other modalities as well, may follow one or more methods to collect emission particles. For example, a method for collecting emission particles Petition 870260046198, dated 05 / 15 / 2026, page 16 / 111 9 / 70 during the loading of a coke oven comprises providing the coke oven with a loading opening and a loading door at the loading opening. The method may further comprise providing an emissions recovery system in the coke oven with a first and a second vent, the first vent at a first distance from the loading door and the second vent at a second distance from the loading door. A vacuum may be drawn into the duct of the emissions recovery system and the loading door opening. Coal may be loaded into the coke oven via a coal loading system and emission particles may be collected from the loading opening via the first and second vents.

[042] The embodiments of this disclosure allow for significant improvements over traditional industrial emission recovery systems. For example, some embodiments can collect up to 50%, 60%, 70%, 80%, 85%, 90%, 95%, 99% or 100% of the emission particles released by a coke oven and / or by pulverized coal in a coke oven loading drawer. Such a proportion of emission particles can be collected by having at least emission recovery systems with vents (i) that are positionable (e.g., vertically, laterally and / or rotationally) relative to the emitting elements and / or (ii) that include openings with variable sizes.Furthermore, these emission particles can be collected by having a duct with a temperature control valve and decreasing the cross-sectional area along its length, at least to maintain consistent vacuum pressure within the duct, both along its length and in response to temperature variations. Similarly, these emission particles can be collected by having a vacuum pump configured to provide variable pressure within the duct, also to maintain consistent vacuum pressure within the duct. Petition 870260046198, dated 05 / 15 / 2026, page 17 / 111 10 / 70

[043] In the Figures, identical reference numbers identify generally similar and / or identical elements. Many of the details, dimensions, and other features shown in the Figures are merely illustrative of particular embodiments of the disclosed technology. Consequently, other embodiments may have different details, dimensions, and / or features without departing from the spirit or scope of the disclosure. Furthermore, those skilled in the art will appreciate that additional embodiments of the various disclosed technologies can be practiced without several of the details described below. II. Systems, devices and methods for emission recovery

[044] FIG. 1 is a schematic block diagram of an emissions recovery system 100 for industrial installations, configured according to some embodiments of the present technology. The emissions recovery system 100 can be implemented in a variety of applications to collect emissions generated by industrial, manufacturing or similar operations. As an example, the emissions recovery system 100 can be implemented to collect some or all of the emissions generated during raw material processing and / or refining-like particles generated during coal processing—to reduce or eliminate portions of these emissions from entering the surrounding environment.

[045] As an example, the emissions recovery system 100 can be implemented in a coking system used to perform a coal coking process. As implemented, during a loading operation, the emissions recovery system 100 can collect some or all of the particles generated by a loading system and a coking oven 102, as well as hot gases released from the coking oven 102. For example, the emissions recovery system 100 can operate to collect emissions and hot gases during the loading operation at least when a loading door of the coking oven 102 is open. When implementing the emissions recovery system Petition 870260046198, dated 05 / 15 / 2026, page 18 / 111 11 / 70 100 with the coking system, at least the particulate matter (i) carried in hot gases escaping from the coking oven 102 and / or (ii) expelled by pulverized coal in the charging system during the charging operation can be captured, prevented from entering the environment around the coking system and available for further processing.

[046] As illustrated in FIG. 1, the emissions recovery system 100 may include a vent assembly 110 in the coke oven 102 and a vacuum assembly 120 fluidly coupled to the vent assembly 110 by means of a duct assembly 130. The operation of the vent assembly 110, the vacuum assembly 120 and / or the duct assembly 130 and one or more elements thereof may be managed manually (e.g., by an operator) or automatically (e.g., by a prepared program and / or AI or ML programming) by a controller 150 (e.g., a control system). Furthermore, as shown with dashed lines, the emissions recovery system 100 may include additional vent assemblies 110 and / or vacuum assemblies 120 to meet the operational requirements of the associated coke system.

[047] The vent assembly 110 may include (i) a first vent 112 laterally and, in some embodiments, vertically spaced at a first distance from a coke oven opening 102; (ii) a second vent 114 laterally and, in some embodiments, vertically spaced (e.g., diagonally) at a second distance from the opening; and (iii) a third vent 116 vertically and, in some embodiments, laterally spaced from the opening 106 (collectively, vents 112, 114, 116). Each of the openings 112, 114, 116 may be configured (e.g., shaped and dimensioned) to facilitate between 5,000 and 50,000 ACFM, inclusive, (e.g., 140 and 1400 CMM) airflow through it, or any specific value outside or between them. The different positions and airflow capacities of openings 112, 114, and 116 may allow the Petition 870260046198, dated 05 / 15 / 2026, p. 19 / 111 The 12 / 70 vent assembly 110 – and the emissions recovery system 100 – generally adapt better to different charging systems and / or coke ovens to maximize emissions collection. In some embodiments, the vent assembly 110 may further include a hood assembly 118 on the third vent 116 at least partially enclosing the third vent 116 and configured to direct hot gases escaping from the coke oven 102 towards and to the third vent 116 (e.g., away from the surrounding environment). In some embodiments, the vent assembly 110 may include one or more additional openings (e.g., a fourth, a fifth, a sixth vent, etc.).

[048] The vacuum assembly 120 may include a bag chamber 122 and an induced draft (ID) fan 124 (e.g., a vacuum pump). The ID fan 124 may generate a variable pressure vacuum within the emissions recovery system 100. For example, the ID fan 124 may generate a vacuum pressure within the emissions recovery system 100 drawing between 15,000 and 150,000 ACFM (e.g., 420 and 4200 CMM) into the vacuum assembly 120. This variable pressure may extract emissions, as well as gases and other gaseous matter, from the charging system and / or the coke oven 102 to the vent assembly 110. From the vent assembly 110, the variable pressure may extract the emissions through the duct assembly 130 and to one or more emissions collection assemblies within or coupled to the vacuum assembly 120.By providing variable pressure within the emissions recovery system 100, a constant airflow through it can be maintained as temperatures may fluctuate within it.

[049] The duct assembly 130 may include a branched duct portion 140. The base duct portion 132 may have a first duct region 132a (e.g., a first end region) and be fluidly coupled to the assembly. Petition 870260046198, dated 05 / 15 / 2026, page 20 / 111 13 / 70 vacuum 120; and a second duct region 132b (e.g., a second end region) and fluidly coupled to the branched duct portion 140. The vent assembly 110 may be fluidly coupled to the branched duct portion 140 and in fluid communication with the vacuum assembly 120 through the base duct portion 132 and the branched duct portion 140. In some embodiments, the duct assembly 130 may further include extensions, additions and / or duplications of the base duct portion 132, the branched duct portion 140 and / or another portion of the duct assembly 130. By including the base duct portion 132 and the branched duct portion 140, the emissions collected by the vent assembly 110 may be consolidated by the branched duct portion 140 into a single duct section before move to the base duct portion 132, thereby reducing the number of duct sections needed to connect to the vacuum assembly 120.

[050] Between the first duct region 132a and the second duct region 132b (for example, along the base duct portion 132) and in no particular order, the duct assembly 130 may include one or more non-return valves 134 (for example, a one-way valve), one or more directional valves or dampers 135, one or more spark arresters 136, and one or more temperature control valves 138. The check valve 134 may be located in a fitting between the first duct region 132a and the reservoir 122 (or elsewhere along the base duct portion 132) and may be configured to restrict the direction of airflow from the duct assembly 130 and to the vacuum assembly 120.This restricted airflow may prevent collected emissions from returning from vacuum assembly 120 to duct assembly 130 and / or vent assembly 110, and may limit or prevent positive pressures generated within vacuum assembly 120 from passing to duct assembly 130 and / or vent assembly 110.

[051] The directional or damper valve 135 may be located on a load side and / or a pusher side of the vent assembly 110. The valve Petition 870260046198, dated 05 / 15 / 2026, p. 21 / 111 A 14 / 70 directional or 135 damper can be configured to control airflow between the loading side and the pusher side. The two sides can be balanced according to a desired ratio by controlling the directional valves or 135 dampers on one or both sides.

[052] The spark arrester 136 may be located along the base duct portion 132, or in the first duct region 132a or in the second duct region 132b. The spark arrester 136 may be configured to extinguish embers, sparks and / or flammable particles collected by the vent assembly 110, as well as reduce the likelihood of ignition of particles or other matter collected by the vent assembly 110. Extinguishing, or preventing or reducing the ignition of particles within the duct assembly 130 may at least reduce the likelihood of fire-related incidents in the vacuum assembly 120 and / or the duct assembly 130 and may increase the service life of the emission collection assemblies (e.g., by reducing wear associated with burns / embers).

[053] The temperature control valve 138 may be located within the second duct region 132b (or elsewhere along the base duct portion 132) and may be configured to introduce ambient air into the duct assembly 130 — or the emissions recovery system 100, generally — to mix and lower the temperature of the particles, gases, and other gaseous matter collected by the vent assembly 110. Reducing the temperature within the duct assembly 130 may at least increase the effectiveness of the spark arrester 136 (improving its benefits) and may help improve the consistency of the vacuum pressure within the duct assembly 130. That is, the vacuum pressure may be more consistent along the length of the duct assembly 130, at least because temperature fluctuations due to temperature increases of the collected hot gases may be reduced or eliminated. Petition 870260046198, dated 05 / 15 / 2026, page 22 / 111 15 / 70

[054] The branched duct portion 140 may include a plurality of duct branches extending from and / or splitting off from the second duct region 132b or from sub-branches thereof. For example, as illustrated in FIG. 1, the branched duct portion 140 may include a first primary branch 142 and a second primary branch 144, each extending from or splitting off from the second duct region 132b. The first primary branch 142 may include a first sub-branch 142a (e.g., a first terminal branch) and a second sub-branch 142b, each extending from or splitting off from the first primary branch 142. The second sub-branch 142b may include a first terminal sub-branch 142c and a second terminal sub-branch 142d, each extending from or splitting off from the second sub-branch 142b.

[055] Similarly, the second primary branch 144 may include a first sub-branch 144a (e.g., a second terminal branch) and a second sub-branch 144b, each extending from or splitting off from the second primary branch 144. The second sub-branch 144b may include a first terminal sub-branch 144c and a second terminal sub-branch 144d, each extending from or splitting off from the second sub-branch 144b. In some embodiments, one or more of the primary, sub- and / or terminal branches of the branched duct portion 140 may extend from or split off from any alternative primary, sub- and / or terminal branch than disclosed above.Furthermore, the branched duct portion 140 may include one or more additional primary, sub, and / or terminal branches (e.g., duplicate branches and / or branches for additional openings 112, 114, 116) that extend from or split off from one of the listed primary, sub, or terminal branches.

[056] Each of the primary, sub and / or terminal branches may include a flow limiting valve (e.g., a butterfly valve, blade damper, guillotine damper, shutter damper, vane damper) Petition 870260046198, dated 05 / 15 / 2026, page 23 / 111 16 / 70 inlet etc.) configured to limit flow through the respective branch and any downstream branch therefrom. For example, as illustrated in FIG. 1, the first primary branch 142 may include a flow limiting valve 146a in the first terminal branch 142a, a flow limiting valve 146b in the first terminal sub-branch 142c and a flow limiting valve 146c in the second terminal sub-branch 142d. Similarly, the second primary branch 144 may include a flow limiting valve 148a in the second terminal branch 144a, a flow limiting valve 148b in the first terminal sub-branch 144c and a flow limiting valve 148c in the second terminal sub-branch 144d.By opening or closing fully or partially, each of the flow limiting valves can control an airflow through its respective branch, thus controlling an airflow within one or more of the openings 112, 114, 116. Furthermore, the flow limiting valves can balance the airflow within a single opening 112, 114, 116 (for example, between a first and second end region of the same, below) and / or between openings 112, 114, 116, improving the emission collection efficiency of the vent assembly 110.

[057] Each of the openings 112, 114, 116 can be fluidly coupled to the first and / or second primary branch 142, 144 or to a sub- or terminal branch thereof. For example, as illustrated in FIG. 1, a first end region 112a of the first vent 112, a first end region 114a of the second vent 114 and a first end region 116a of the third vent 116 can each be fluidly coupled to a terminal branch of the first primary branch 142; and a second end region 112b of the first vent 112, a second end region 114b of the second vent 114, and a second end region 116b of the third vent 116 can each fluidly couple to a terminal branch of the second primary branch 144. That is: (i) the first end region Petition 870260046198, dated 05 / 15 / 2026, page 24 / 111 17 / 70 (i) the first end region 112a of the first vent 112 can couple to the first terminal sub-branch 142c of the first primary branch 142; (ii) the first end region 114a of the second vent 114 can couple to the second terminal sub-branch 142d of the first primary branch 142; (iii) the first end region 116a of the third vent 116 can couple to the first terminal branch 142a of the first primary branch 142; (iv) the second end region 112b of the first vent 112 can couple to the first terminal sub-branch 144c of the second primary branch 144; (v) the second end region 114b of the second vent 114 can couple to the second terminal sub-branch 144d of the second primary branch 144; and (vi) the second end region 116b of the third vent 116 can couple to the second terminal branch 144a of the second primary branch 144.

[058] In some embodiments, one or more of the first and / or second end regions of openings 112, 114, 116 may couple to any alternative primary, sub and / or terminal branch than that disclosed above. Additionally or alternatively, in some embodiments, only the first end region or the second end region of openings 112, 114, 116 may couple to the branched duct portion 140. Furthermore, in some embodiments, one or more of openings 112, 114, 116 may include additional connections (e.g., a third, a fourth, a fifth connection) with an additional branch of the branched duct portion 140.Furthermore, when the vent assembly 110 includes additional openings, the first end region and / or a second end region of each additional vent may couple to any of the primary, sub and / or terminal branches of the first primary branch 142 and the second primary branch 144.

[059] Controller 150 may be in communication with vent assembly 110, vacuum assembly 120 and / or duct assembly 130 and any one Petition 870260046198, dated 05 / 15 / 2026, p. 25 / 111 18 / 70 or more elements thereof, to control and / or monitor the operations of the emissions recovery system 100. The controller 150 can also manage and / or monitor certain aspects of the emissions recovery system 100 at one or more locations throughout the system 100. For example, the controller 150 can monitor vacuum pressure, airflow, and / or temperature, among other characteristics, of the emissions recovery system 100 within each of the vent assembly 110, vacuum assembly 120, and duct assembly 130 using sensors at multiple locations within each of these assemblies. Furthermore, the controller 150 can integrate with (or be) a broader control system of the coking system, allowing control of the emissions recovery system 100, or portions thereof, from a remote location.

[060] In some embodiments, the controller 150 and / or the technology described in this document may be computer-executable instructions, including routines executed by a programmable computer. The controller 150 may, for example, also include a combination of supervisory control and data acquisition (SCADA) systems, distributed control systems (DCS), programmable logic controllers (PLCs), control devices, and processors configured to process computer-executable instructions. Those skilled in the relevant art will appreciate that the technology can be practiced in computer systems other than those described in this document. The technology may be incorporated into a special-purpose computer or data processor that is specifically programmed, configured, or constructed to execute one or more of the computer-executable instructions described below.Therefore, the terms control system, computer, or controller, as generally used in this document, refer to any data processor. The information handled by these computers can be presented on any suitable display medium, including a CRT or LCD screen. Petition 870260046198, dated 05 / 15 / 2026, page 26 / 111 19 / 70

[061] Technology can also be practiced in distributed environments, where tasks or modules are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules or subroutines may be located on local and remote memory storage devices. Aspects of the technology described below may be stored or distributed on computer-readable media, including magnetic or optically readable or removable computer disks, as well as distributed electronically over networks. Data structures and data transmissions particular to aspects of the technology are also encompassed within the scope of particular embodiments of the disclosed technology.

[062] With respect to vent assembly 110, examples of the functions of controller 150 include at least managing and / or monitoring (i) a size (e.g., a position of the vent openings) and / or airflow through one or more openings of each of the openings 112, 114, 116 where particles, gases and gaseous matter are drawn into the emissions recovery system 100; (ii) a position and / or orientation of each of the openings 112, 114, 116 relative to the coke oven opening 106; and / or (iii) a position and / or orientation of the hood assembly 118 in relation to the coke oven 102 and the third vent 116 and any other functions of the vent assembly 110. In relation to the vacuum assembly 120, the controller 150 may at least manage and / or monitor (i) an operational setting (e.g., a power setting, a speed setting, etc.(i) of the ID 124 fan to establish vacuum pressure within the emissions recovery system 100 and / or (ii) a filling and / or quality of one or more of the emissions collection assemblies and any other functions of the vacuum assembly 120. With respect to the duct assembly 130, the controller 150 may at least manage and / or monitor (i) a position and / or orientation of the non-return valve 134, (ii) a position and / or orientation of the directional valve or damper. Petition 870260046198, dated 05 / 15 / 2026, page 27 / 111 20 / 70 135, (iii) an operational configuration and / or quality of the spark arrester 136, (iv) a position and / or operation of the temperature control valve 138 and / or (v) a position and / or orientation of each of the flow limiting valves 146a-c, 148a-c (e.g., a flow restriction level) and any other functions of the vacuum assembly 120.

[063] FIGS. 2A and 2B are perspective views of an emissions recovery system 200 implemented with a coke oven loading system 260 (e.g., a pusher loading machine (PCM)), configured according to some embodiments of the present technology. Specifically, FIG. 2A is a rear perspective view of the loading system 260 and FIG. 2B is a front perspective view of the loading system 260. The emissions recovery system 200 may include elements generally similar or identical to the elements of the emissions recovery system 100 of FIG. 1 and / or the emissions recovery system 1000 of FIGS. 10A and 10B, below. In addition, similar elements may perform the same or similar functions and / or provide the same or similar benefits.

[064] Referring to FIGS. 2A and 2B together, the loading system 260 may include a loading plunger 262 and a pushing plunger 252, each with a loading end on the loading side (e.g., a first side, coal loading side) of the loading system 260 and with a loading end on the loading side (e.g., a second side, pushing side; e.g., extending along a length) of the loading system 260. The loading plunger 262 and the pushing plunger 252 may each include a conveyor system configured to receive coal on the loading side or from a coal hopper 266 and to transport the coal to the loading side. The loading plunger 262 and the pushing plunger 252 Petition 870260046198, dated 05 / 15 / 2026, page 28 / 111 21 / 70 push 252 may also include a positioning assembly configured to position (e.g., locate, translate, rotate, move, etc.) the loading end (or a portion of the loading plunger 262 or the push plunger 252 on the loading side) along the length of the loading system 260 and / or within a coke oven 302 (see FIG. 3). For example, the loading plunger 262 may follow (e.g., move along) a path P away from the loading system 260 and toward the coke oven 302 located adjacent to the loading system 260. The loading system 260 may also include a first coke oven door extractor 264, a second coke oven door extractor 254, and a coal hopper 266. The first and second door extractors 264 and 254 may be configured to remove (e.g., lift, open, move, rotate, etc.)) a coke oven door 302, providing an opening for the charging plunger 262 or the pushing plunger 252 to extend and charge the coke oven 302. The coal hopper 266 can be configured to distribute coal onto the charging plunger 262.

[065] As shown, the emissions recovery system 200 can be implemented with the loading system 260 to collect the emissions produced, as well as the emissions expelled by the coke oven 302, thus preventing these emissions from entering the surrounding environment and recapturing coal and / or coke for processing and / or future use. The emissions recovery system 200 may include a vent assembly 210 fluidly coupled to a vacuum assembly 220 by a duct assembly 230. The operation of the vent assembly 210, the vacuum assembly 220 and / or the duct assembly 230 and one or more elements thereof may be managed manually or automatically by a control system located in a control room or control system 250 above the push plunger 252 or between the loading plunger 262 and the bag compartment 222. Petition 870260046198, dated 05 / 15 / 2026, page 29 / 111 22 / 70

[066] The vent assembly 210 may be positioned on the loading side of the loading system 260, with a first vent 212, a second vent 214 and / or a third vent 216 over the loading end of the loading plunger 262 and / or the loading end of the push plunger 252. For example, the first vent 212 and the second vent 214 may be positioned above the loading plunger 262 on either side of the coal hopper 266 and distanced from the first door extractor 264. In addition, the first vent 212 and the second vent 214 may be facing (or away from) the loading plunger 262 and / or the coke oven opening 302 (e.g., the first door extractor 264).The third vent 216 may be positioned above the loading piston 262 and / or the push piston 252, the first door extractor 264 and / or the coke oven opening; and directed towards (or away from) the loading piston 262 and / or the coke oven opening. Each of the first vent 212, the second vent 214 and / or the third vent 216 may be rotated manually or automatically by at least about one length thereof. A hood assembly 218 may at least partially enclose (e.g., vertically and / or laterally) the third vent 216 and similarly extend over the loading piston 262, the first door extractor 264 and / or the coke oven opening.In normal operations, the loading piston 262 is used to load coal into the coke oven (e.g., coke oven 102) due to at least the relative position of the hood assembly 218, and the pusher piston 252 is used to push coke out of the oven (e.g., coke oven 102). Advantageously, embodiments of the present technology allow emissions to be collected during each of these operations, including simultaneously. For example, emissions can be collected while loading coal into the coke oven and / or pushing coke out of the coke oven. Petition 870260046198, dated 05 / 15 / 2026, page 30 / 111 23 / 70

[067] Regarding separation distances, the first vent 212 may be at a first vertical distance from the loading piston 262, the second vent 214 may be at a second vertical distance from the loading piston 262, and the third vent 216 may be at a third vertical distance from the loading piston 262. The first vent 212 may be at a first lateral distance from the first door extractor 264; the second vent 214 may be at a second lateral distance, less than the first lateral distance, from the first door extractor 264; and the third vent may be at a third lateral distance, less than the first and second lateral distances, from the first door extractor 264.

[068] For example, a center of the first vent 212 and / or the second vent 214 (e.g., a centerline along a length of a housing of the first vent 212 and the second vent 214, respectively) may be separated (e.g., spaced, distanced, etc.) from a top surface of the loading plunger 262 between 1 in and 60 in (e.g., 2.5 cm and 152 cm). A center of the third vent 216 may be separated from the top surface of the loading plunger 262 between 24 in and 120 in (e.g., 61 cm and 305 cm). The center of the first vent 212 may be separated from the first door extractor 264 between 36 in and 120 in (e.g., 91 cm and 305 cm). The center of the second vent 214 can be separated from the first door extractor 264 between 0 in and 84 in (e.g., 0 cm and 213 cm).The center of the third vent 216 can be separated from the first door extractor 264 between -36 in and 36 in (e.g., -91 cm and 91 cm).

[069] One face of the first vent 212, the second vent 214 and / or the third vent 216 may be directed towards the loading plunger 262 and / or the first door extractor 264. For example, the faces of the first Petition 870260046198, dated 05 / 15 / 2026, p. 31 / 111 24 / 70 vent 212, second vent 214 and / or third vent 216 may be parallel to a face of the first door extractor 264. In some embodiments, the face of the first vent 212, second vent 214 and / or third vent 216 may instead be rotated relative to the first door extractor 264 around the length of the loading system 260 and / or around an axis perpendicular thereto. For example, as shown, a length of the first vent 212, second vent 214 and / or third vent 216 may be perpendicular to the length of the loading system 260 and parallel to the upper surface of the loading plunger 262.Furthermore, the face of the first vent 212 may be turned away from the first door extractor 264 and towards the loading plunger 262 (e.g., rotated 90°-180° around the width of the loading system 260); the face of the second vent 214 may be turned towards the first door extractor 264 and the loading plunger 262 (e.g., rotated 0°-90° around the width of the loading system 260); and the face of the third vent 216 may be turned towards the loading plunger 262 (e.g., be parallel to it).

[070] With reference to FIG. 2B, the hood assembly 218 may include a front plate 270, one or more side plates 272 and a rear plate supported by a hood structure 274. The front plate 270, the side plates 272 and / or the rear plate may include one or more individually reinforced metal plates and / or be joined by crossbeams. The front plate 270 may extend vertically and, in some embodiments, horizontally from the front of a housing 304 (see FIG. 3) of the third vent 216. The side plates 272 may extend vertically and, in some embodiments, horizontally from the sides of the housing 304 of the third vent 216. The rear plate may extend vertically and, in some embodiments, horizontally from the rear of the housing 304 of the third vent 216. Petition 870260046198, dated 05 / 15 / 2026, p. 32 / 111 25 / 70 lashing 304 of the third vent 216. One or more of the front plate 270, side plates 272 and rear plate may be vertically and / or laterally, manually or automatically, adjustable to correspond to the placement of the loading system 260 relative to the coke oven 302. Additionally or alternatively, one or more of the front plate 270, side plates 272 and rear plate may be extendable (e.g., including nesting portions) relative to the third vent 216. In some embodiments, one or more of the front plate 270, side plates 272 and rear plate may include brushes (e.g., made of stainless steel or other materials) configured to seal any remaining gaps between the hood assembly 218 and the coke oven 302 (see FIG. 17).By including the hood assembly 218, the front plate 270, the side plates 272 and the rear plate thereof, it can direct emissions from the charging plunger 262 and / or the coke oven 302 that might otherwise not be collected by suction from the ventilation assembly 210 to the third vent section 216.

[071] The front plate 270 and / or the side plates 272 may be mechanically and / or chemically coupled to the hood structure 274. In some embodiments, the front plate 270 and / or the side plates 272 may be additionally coupled to the third vent 216 and / or to the branched duct portion 240. Alternatively, the hood structure 274 may be omitted, with the front plate 270 and / or the side plates 272 directly coupled to the third vent 216 and / or to the branched duct portion 240. In some embodiments, the hood assembly 218 may include additional plates that extend coplanarly with, or at an angle from, the front plate 270 and / or the side plates 272 (or from the first and / or second openings 212, 214) and / or skirts (by For example, flexible metal and / or non-metal) to form a seal with and / or for better direct emissions from the coke oven 302.In some embodiments, the first vent 212, the second vent 214 and / or any additional vents may include a hood assembly with the same. Petition 870260046198, dated 05 / 15 / 2026, p. 33 / 111 26 / 70 and / or similar to hood assembly 218 on the third vent 216.

[072] The vacuum assembly 220 can be positioned adjacent to and offset from the loading piston 262 and can include a bag chamber 222 and a vacuum pump 224 or induced draft fan. The duct assembly 230 may include a base duct portion 232 with a first duct region 232a and a second duct region 232b (e.g., a first end region and a second end region) and a branched duct portion 240. The first duct region 232a may seamlessly couple with a reservoir top 222. The base duct portion 232 may extend from the bag compartment 222, over portions of the loading system 260 and the loading plunger 262. The second duct region 232b may seamlessly couple with the branched duct portion 240 of the duct assembly 230.The branched duct portion 240 may extend over portions of the loading system 260 and the loading piston 262 and may seamlessly couple the ventilation assembly 210 to the duct assembly 230. Different sections of the base duct portion 232 and / or the branched duct portion 240 may be vertically separated from the loading system 260 and / or the loading piston 262 by different distances (e.g., the height of the duct assembly 230 may vary along its length).

[073] In some embodiments, the vacuum assembly 220 and the duct assembly 230 may be aligned with the vent assembly 210 to improve vacuum pressure consistency and / or the energy efficiency of the system. For example, the emission recovery system 200 may be a linear system extending over and / or parallel to the charging plunger 262 and / or the charging system 260, generally. In some embodiments, and as shown, the vacuum assembly 220 and / or the duct assembly 230 may be misaligned with the vent assembly 210 to improve the space efficiency of the emission recovery system 200 and / or the charging system 260, generally. For example, as shown, the Petition 870260046198, dated 05 / 15 / 2026, p. 34 / 111 27 / 70 duct assembly 230 and the airflow in it are perpendicular to the ventilation assembly 210; and the vacuum assembly 220 is parallel and the airflow in it is opposite to the ventilation assembly 210. Overall, the emissions recovery system 200 implemented with the coke oven charging system 260 can adequately collect emissions from one or more coke ovens by providing appropriately distributed vacuum pressure and effective positioning of the system's collection openings.

[074] FIG. 3 is a cross-sectional side view of selected components of the emission recovery system 200 of FIGS. 2A and 2B in the second vent 214 and the third vent 216, configured according to some embodiments of the present technology. As shown, the second vent 214 is positioned above and separated by the second vertical distance from the loading piston 262 and distanced and separated by the second lateral distance from the first door extractor 264. The third vent 216 is positioned above the loading piston 262 and the first door extractor 264, separated from the loading piston 262 by the third vertical distance; and over and separated by the third lateral distance of the first door extractor 264. The face of the second vent 214 is directed towards the loading piston 262 and the first door extractor 264 and the face of the third vent 216 is directed towards the loading piston 262.

[075] The second vent 214 and the third vent 216 may each include a housing 304 and a faceplate 306 with a plurality of openings 600 (see FIG. 6A) extending through it. Although not shown, the first vent 212 may also include the housing 304 and the faceplate 306 with a plurality of openings 600 extending through it and any features and benefits thereof. The housing 304 may include a hollow wall structure, square, rectangular, trapezoidal, triangular or elongated semicircular (or any similarly shaped cross-section). The wall structure Petition 870260046198, dated 05 / 15 / 2026, p. 35 / 111 28 / 70 may include formed and / or welded metal with an opening that may be directed to loading system elements 260. The housing 304 may be coupled to the branched duct portion 240 by one or more fixed or positionable interconnections 308 opposite (e.g., on a rear part of the housing 304) or adjacent (e.g., on one or more sides of the housing 304) to the opening. The interconnections 308 may include mechanical and / or chemical elements, as further discussed in relation to FIGS. 4 and 5A-5D. The faceplate 306 may be a sheet or plate of metal and / or a grid, coupled to the housing 304 by any suitable mechanical and / or chemical means, partially or wholly covering the opening. In some embodiments, the first vent 212, the second vent 214 and / or the third vent 216 may exclude the faceplate 306.

[076] As shown in FIG. 3, the second vent 214 may include housing 304 having a right trapezoidal cross-section, with the front plate 306 welded thereto. The ends (e.g., side ends) of housing 304 of the second vent 214 may be rotatably coupled to the branched duct portion 240 using any suitable rotatable mechanical means, so that airflow may pass from housing 304 to the branched duct portion 240. The third vent 216 may include housing 304 having a trapezoidal cross-section and excluding the front plate 306. One side of housing 304 of the third vent 216 may be rigidly coupled to the branched duct portion 240 in one or more locations using any suitable rigid mechanical means, so that airflow may pass from the third vent 216 to the branched duct portion 240.

[077] FIGS. 4 and 5A-5D illustrate various views of selected components of the ventilation assembly 210 and the duct assembly 230 of the emissions recovery system 200 of FIGS. 2A and 2B, configured according to some embodiments of the present technology. Specifically, FIG. 4 is a perspective view of Petition 870260046198, dated 05 / 15 / 2026, p. 36 / 111 Figure 29 / 70 shows an embodiment of ventilation assembly 210 and duct assembly 230 in their entirety; and Figures 5A-5D are views of selected components of ventilation assembly 210 and duct assembly 230. Figure 5A is a perspective view, Figure 5B is a side view, Figure 5C is a front view, and Figure 5D is a close-up front view illustrating a positioning element (e.g., a positioning assembly, a telescopic feature, etc.) between selected components of ventilation assembly 210 and duct assembly 230.

[078] Referring to FIGS. 4 and 5A-5C together, the base duct portion 232 and / or the branch duct portion 240 of the duct assembly 230 may each include a combination of linear and / or curved industrial duct tube sections of varying sizes and external shapes. For example, the base duct portion 232 and / or the branch duct portion 240 may each include sections of rolled and welded sheet metal, formed sheet metal (e.g., steel, aluminum, etc.), fiberboard and / or flexible industrial air ducts (e.g., polyurethane, foil, etc.), each with or without a thermal and / or flame-resistant coating / sheathing on its interior or exterior. Industrial air duct sections can each have an external size (e.g., diameter, one or more side lengths) or a range of sizes between 6 in and 60 in (e.g., 15 cm and 152 cm), inclusive.Industrial air ducts can have a single cross-section or a combination of cross-sections, including circular, oval, square, rectangular, and / or any geometric or similar cross-sectional shape.

[079] The duct assembly 230 may decrease in cross-sectional area from the first duct region 232a of the base duct portion 232 to the vent assembly 210, at least to reduce vacuum pressure loss along the length of the duct assembly 230. For example, from the first duct region 232a to the second duct region 232b, the base duct portion 232 may decrease from a square duct section of 46 in (e.g., 117 cm) to a section of Petition 870260046198, dated 05 / 15 / 2026, page 37 / 111 30 / 70 44-inch round duct (e.g., 112 cm). Specifically, the base duct portion 232 may include: (i) a 46-inch square duct section with a non-return valve 234 coupled to the vacuum assembly 220, (ii) a 46-inch square to 44-inch round transition section, (iii) a 44-inch round section, (iv) a 90° 44-inch round section, (v) a 44-inch round section, (vi) a spark arrestor 236, (vii) a 44-inch round section with a temperature control valve 238 thereon, (viii) a 90° 44-inch round section, (ix) a 24° 44-inch round section, and (x) a 44-inch round section. Section (x) of base duct portion 232 can be coupled to branched duct portion 240.

[080] The branched duct portion 240 may decrease from a round duct section of 44 in to 20 in (e.g., 51 cm) by 4 in (e.g., 10 cm) of rectangular duct section. Specifically, the branched duct portion 240 may include a 45° round transition section, 44 in to 30 in (e.g., 76 cm), of branch y coupled to section (x) of the base duct portion 232, with a first primary branch 242 extending from it and a second primary branch 244 splitting off (e.g., branch) from it. The first primary branch 242 may include: (i) a first sub-branch or first terminal branch 242a extending from the first primary branch 242, (ii) a second sub-branch 242b splitting off from the first primary branch 242, and (iii) a first and a second terminal sub-branch 242c, 242d, each extending from the second sub-branch 242b.The second primary branch 244 may include: (i) a first sub-branch or second terminal branch 244a extending from the second primary branch 244, (ii) a second sub-branch 244b splitting off from the second primary branch 244, and (iii) a first and a second terminal sub-branch 244c, 244d, each extending from the second sub-branch 244b.

[081] From the branch section y of the branched duct portion 240 Petition 870260046198, dated 05 / 15 / 2026, page 38 / 111 31 / 70 coupled to section (x) of base duct portion 232, the first primary branch 242 may include: (i) a 45°, 30 in. round section, (ii) a 30 in. square to 25 in. round transition section (e.g., 34 cm), (iii) a 45°, 25 in. round section, and (iv) a 30°, 25 in. to 20 in. round transition section. The first terminal branch 242a extending from section (iv) may include a telescopic round section 20 terminating with an interconnect configured to couple to a first end region 216a of the third vent 216. The second sub-branch 242b may include: (i) a 30° round section, 20 in., (ii) a 20 in. round section, (iii) a 90° round section, 20 in., (iv) a 20 in. round section, (v) a 20 in. to rectangular transition section, and (vi) a telescopic rectangular section.Each of the first and second terminal sub-branches 242c, 242d may include a 90° rectangular elbow extending from section (vi) and an interconnection configured to couple with a first end region 212a, 214a of the first and second openings 212, 214, respectively.

[082] The second primary branch 244 may include: (i) a 45°, 30 in round section, (ii) a 30 in round section, (iii) a 90°, 30 in round section, (iv) a 45°, 30 in round section, (v) a 30 in to 25 in round transition section, (vi) a 45°, 20 in round section and (vii) a 25 in to 20 in round transition section. The second terminal branch 244a extending from section (vii) may include a telescopic round section 20 terminating with an interconnect configured to couple to a second end region 216b of the third vent 216. The second sub-branch 244b may include: (i) a 30°, 20 in. round section, (ii) a 20 in. round section, (iii) a 90°, 20 in. round section, (iv) a 20 in. round section, (v) a 20 in. to rectangular transition section, and (vi) a telescopic rectangular section. Each of the first and second terminal sub-branches 244c, 244d may include a Petition 870260046198, dated 05 / 15 / 2026, page 39 / 111 32 / 70 rectangular 90° elbow extending from section (vi) and an interconnection configured to couple with a second end region 212b, 214b of the first and second openings 212, 214, respectively.

[083] The interconnections between the duct sections of the base duct portion 232 and the branched duct portion 240 and the interconnections between the branched duct portion 240 and the vent assembly openings 210 may include any mechanical and / or chemical interconnection. For example, the interconnections may each include circumferential flanges (e.g., interface plates) formed and / or welded to each duct section and coupled together using one or more (or both) of a mechanical coupling method, such as mechanical fasteners (e.g., nuts and bolts, rivets, etc.), welding and / or a similar mechanical coupling method; and a chemical coupling method, such as an epoxy, liquid cement, industrial grade adhesive or similar chemical coupling method.

[084] In some embodiments, the emission recovery system 200 may include one or more joints between some or all of the duct sections (for example, at the interconnections between them) or between the duct sections and the openings 212, 214, 216 and / or the vacuum assembly 220. In addition, additionally or alternatively, the emission recovery system 200 may include one or more vibration reduction elements (for example, thick joints, rubber fittings, dampers, etc.) between some or all of the duct sections (for example, at the interconnections between them) or between the duct sections and the openings 212, 214, 216 and / or the vacuum assembly 220.

[085] The check valve 234 can be coupled to or within the first duct region 232a of the base duct portion 232 and can be configured to passively (e.g., controlled by airflow or pressure) or actively (e.g., actuated by an operating mechanism) restrict the direction of airflow from the duct assembly 130 and to the vacuum assembly 120. For example, the valve Petition 870260046198, dated 05 / 15 / 2026, page 40 / 111 33 / 70 non-return valve 234 may be a butterfly valve, blade damper, guillotine damper, shutter damper and / or inlet vane damper or a similar valve assembly. In some embodiments, the duct assembly 230 may include one or more additional check valves 234 at one or more locations within the base duct portion 232 and / or the branch duct portion 240.

[086] The spark arrester 236 (e.g., extinguisher) may be an in-line assembly of the base duct portion 232 configured to at least meet the National Fire Protection Association (NFPA) 69 explosion prevention standard. For example, the spark arrester 236 may be configured to extinguish embers, sparks, and / or burning particles collected by the vent assembly 210, as well as reduce the likelihood of ignition of particles or other matter collected by the vent assembly 210. As shown, the spark arrester 236 may include an outer casing (e.g., housing) sized to mate with a preceding and following section of the air duct. The spark arrester 236 may include a plurality of angled vanes and / or fins within the casing configured to disrupt laminar flow within the duct assembly 230.By disrupting laminar flow, particles within the airflow can be accelerated and the oxidant concentration can be reduced, extinguishing and / or reducing the likelihood of particle ignition.

[087] Referring to FIGS. 4 and 5A-5C, and further referencing FIG. 5D, the branched duct portion 240 may include positioning elements within, on, or integrated with one or more of the primary, sub, or terminal branches thereof configured to position one or more of the openings 212, 214, 216. For example, the second sub-branches of the first and second primary branches 242b, 244b may each include a first and a second ventilation positioning element (e.g., a single positioning element per side of the first and second openings 212, 214). The first and second ventilation positioning elements may allow the first vent Petition 870260046198, dated 05 / 15 / 2026, page 41 / 111 34 / 70 212 and the second vent 214 move (e.g., translate, rotate, bend, etc.) — collectively in relation to, toward, or away from the loading piston 262, the first door extractor 264, and / or the coke oven 302 of FIGS. 2A, 2B, and 3. As a further example, the first and second terminal branches 242a, 244a coupled to the first end region 216a and the second end region 216b of the third vent 216, respectively, may each include a third vent positioning element. The third vent positioning elements may allow the third vent 216 and / or the hood assembly 218 to move in relation to, toward, or away from the loading piston 262, the first door extractor 264, and / or the coke oven 302.

[088] As shown at least in FIGS. 5C and 5D, the first and second ventilation positioning elements may be a telescopic feature TF of the second sub-branches of the first and second primary branches 242b, 244b, respectively. That is, the telescopic feature TF may be a portion of the branched duct portion 140, between the first and second primary branches 242, 244 and the first and second terminal sub-branches 242c, 242d, 244c, 244d. For example, the second sub-branches of the first and second primary branches 242b, 244b may each include a first portion and a second portion of the duct section, with the first portion configured to nest within the second portion.Either of the first or second portions can couple to the first and second terminal sub-branches 242c, 242d, 244c, 244d and can translate along the lengths of the second sub-branches of the first and second primary branches 242b, 244b. The telescopic TF features can allow the first vent 212 and the second vent 214 to translate between a retracted position (as shown in FIGS. 4 and 5A-5C) and a position. Petition 870260046198, dated 05 / 15 / 2026, page 42 / 111 35 / 70 extended (as shown in FIG. 5D), 30 in (e.g., 76 cm) from the retracted position. The TF telescopic features can move independently of each other, so that the first vent 212, the second vent 214, and a loading piston substructure 262 can be raised without changing orientation or moved to an inclined position.

[089] As shown at least in FIG. 4, the third vent positioning elements may be a telescopic TF feature of the first terminal branch 242a and the second terminal branch 244a, respectively. The telescopic TF features may position the third vent 216 and / or the hood assembly 218 relative to the coke oven 302, along the length of the charging plunger 262. For example, the first terminal branch 242a and the second terminal branch 244a may each include a first portion and a second portion of the duct section, with the first portion configured to nest within the second portion. Either of the first or second portions may couple to the third vent 216 and may translate along the lengths of the first terminal branch 242a and the second terminal branch 244a.The TF telescopic features can allow the third vent 216 to move between a retracted position (as shown in FIG. 4) and an extended position, 60 in (e.g., 152 cm) from the retracted position.

[090] FIGS. 6A and 6B illustrate various views of selected components of the second vent 214 of the emission recovery system 200 of FIGS. 2A and 2B, configured according to some embodiments of the present technology. Specifically, FIG. 6A is a front perspective view of the second vent 214 and FIG. 6B is a rear perspective view of the second vent 214. As shown, the second vent 214 is separated from the upper surface of the loading plunger 262 and the first gate extractor 264. Furthermore, the second vent 214 is coupled to the second terminal sub-branches 242d, Petition 870260046198, dated 05 / 15 / 2026, page 43 / 111 36 / 70 244d of the first and second primary branches 242, 244, respectively, in the first endpoint region 214a and in the second endpoint region 214b of the same.

[091] As shown, the second vent 214 includes the faceplate 306 mechanically coupled (e.g., by means of nuts and bolts) to a flange 602 (see FIG. 6B) welded to the sides of the housing 304. The faceplate 306 may include a plurality of openings 600 (e.g., openings, slots, holes, cutouts, etc.) that extend through it and provide access from the surrounding environment (e.g., in the loading plunger 262 and / or the first door extractor 264) to the interior of the housing 304. When a vacuum pressure exists within the branched duct portion 240—and the duct assembly 230, generally—the gaseous matter from outside the second vent 214 can be drawn into the interior of the housing 304 (e.g., by means of suction) through the openings 600.For example, during a loading operation of the coke oven 302 of FIG 3, the second vent 214 can collect emissions and hot gases from the loading piston 262 and / or the coke oven 302 through the four openings 600.

[092] The size of one or more of the openings 600 can be controlled manually (e.g., by an operator) and / or automatically (e.g., via the control system 250) by means of one or more mechanisms or assemblies configured to obstruct, close, or otherwise reduce the size of the openings 600. By controlling the size of one or more of the openings 600, (i) an airflow through it can be controlled to draw more or less air into the second vent 214, (ii) a suction resistance can be increased or decreased to collect larger and / or smaller particles when the openings 600 are small, (iii) particles and / or objects of a certain size can be prevented from entering the ventilation assembly 210, (iv) pressure balance can be maintained within the housing 304, and / or (v) the flow rate differential between the suction flow near the Petition 870260046198, dated 05 / 15 / 2026, p. 44 / 111 The 37 / 70 exterior of housing 304 and the interior of housing 304 may be increased or decreased. In some embodiments, each opening 600, or one or more sets of openings 600, may include a corresponding closure set configured to controllably obstruct the openings 600. Furthermore, similar and / or the same closure sets may be implemented with the first vent 212 and / or the third vent 216 to obstruct their openings.

[093] For example, the second vent 214 may include an internal and / or external vane for each opening 600. The vane may, individually or in combination with one or more additional vanes, slide and / or rotate to partially or totally obstruct the corresponding opening 600. As a further example, the second vent 214 may include a corresponding internal and / or external plate (e.g., a metal plate) sized to cover one or more of the openings 600, or it may include a plate with holes corresponding to one or more of the openings 600. The plate may slide over, or relative to, the front plate 306 to partially or totally obstruct the openings 600. In still other examples, the second vent 214 may include any suitable assembly configured to obstruct, close, or otherwise modify the effective size of one or more of the openings 600 (e.g., to equalize the pressure within the housing 304).Elements and / or structures that support the operation of one or more closing assemblies, such as actuators (e.g., electric, pneumatic and / or hydraulic, etc.); tracks, rails and / or shafts; wiring; and / or any similar elements, may be coupled to the interior and / or exterior of housing 304.

[094] FIGS. 7A and 7B illustrate various views of the temperature control valve 238 of the duct assembly 230 of the emissions recovery system 200 of FIGS. 2A and 2B, configured according to some embodiments of the present technology. Specifically, FIG. 7A is a top view of the temperature control valve 238 (e.g., looking from the surrounding environment to the duct) and FIG. Petition 870260046198, dated 05 / 15 / 2026, p. 45 / 111 38 / 70 Figure 7B is a cross-sectional side view of temperature control valve 238. Temperature control valve 238 may include any suitable mechanism configured to open rapidly (e.g., within 5 to 60 seconds) to allow ambient air to enter the duct assembly 230 and similarly to close rapidly and prevent air from passing into or out of the duct assembly 230. Furthermore, temperature control valve 238 may be configured to withstand the high operating temperatures and pressures of the emissions recovery system 200, generally.By reducing the temperature within the duct assembly 230, the temperature control valve (i) can at least increase the effectiveness of the surge arrester 236, improving its benefits, (ii) can help improve the consistency of vacuum pressure within the duct assembly 230 by minimizing temperature fluctuation within the duct assembly 230 and (iii) can help prevent the reservoir 222 from burning.

[095] The temperature control valve 238 may include a housing 700 mechanically and / or chemically coupled to the duct assembly 230. The housing 700 may carry at least one first blade 702a (e.g., a fin, a wing, a plate, etc.) rotating around a first shaft 704a and a second blade 702b (collectively, the blades 702) rotating around a second shaft 704b (collectively, the shafts 704). A motor 706 may directly drive the first shaft 704a or the second shaft 704b and may drive the corresponding shaft with a transmission assembly 708 (e.g., a chain and sprocket assembly, a rack and pinion, lever arms and / or a gearbox, etc.). By rotating the first and second axes 704, the blades 702 can be selectively rotated any specific rotational amount between a first position P1 (e.g., a closed position; as shown in FIGS.7A and 7B) and a second position P2 (for example, an open position; as shown in FIG. 7B with dashed lines). The position of blades 702 can be... Petition 870260046198, dated 05 / 15 / 2026, page 46 / 111 39 / 70 is defined manually and / or automatically and can be timed to correspond to a coke oven loading operation 302. For example, blades 702 can be moved to the second position P2, or partially towards the second position P2, from the first position P1, during a portion or all of the loading operation; and blades 702 can be returned to the first position P1 during or after the loading operation.

[096] FIGS. 8A and 8B illustrate various views of the vacuum pump 224 of the vacuum assembly 220 of the emission recovery system 200 of FIGS. 2A and 2B, configured according to some embodiments of the present technology. Specifically, FIG. 8A is a perspective view of the vacuum pump 224 and FIG. 8B is a side view of the vacuum pump 224. The vacuum pump 224 may include any suitable mechanism configured to fluidly couple with the reservoir 222 of FIGS. 2A and 2B and generate a variable pressure vacuum within the emission recovery system 200. For example, the vacuum pump (e.g., fan, blower, etc.) may be a single or multi-stage, electric or combustion, variable speed, industrial centrifugal blower, positive displacement blower, axial blower and / or a similar industrial vacuum pump, or a combination thereof.

[097] As shown, the vacuum pump 224 may be an industrial centrifugal blower with a shell-shaped housing 800 carried by a pump frame 802. A centrifugal blade 804 may be inside the housing 800 and configured to draw air in through an inlet 806 and to expel air through an outlet 808. The inlet 806 may be configured to interact with a corresponding fitting of the reservoir 222 to draw air from it. The centrifugal blade 804 may be driven directly by an electric motor 810 through a drive shaft 812 or by the motor 810 through a transmission assembly 814 between them. The motor 810 may drive the centrifugal blade 804 to maintain Petition 870260046198, dated 05 / 15 / 2026, p. 47 / 111 40 / 70 a vacuum pressure within the emissions recovery system 200 generating an airflow through the reservoir 222 of up to 150,000 ACFM (e.g., 4200 CMM). Furthermore, the engine 810 can be dynamically controlled by the control system 250 to increase or decrease the vacuum pressure to compensate for temperature fluctuations within the emissions recovery system 200 by increasing or decreasing the engine's rotational speed 810.

[098] FIGS. 9A and 9B illustrate various views of a baghouse 922 that can be implemented with the vacuum assembly 220 of the emission recovery system 200 of FIGS. 2A and 2B, configured according to some embodiments of the present technology. Specifically, FIG. 9A is a side view of the baghouse 922 and FIG. 9B is a top view of the baghouse 922. The reservoir 922 may include any suitable structure configured to withstand a vacuum pressure and an airflow through it and including a collection chamber for storing (e.g., collecting, filtering, trapping, capturing, etc.) particles collected by the ventilation assembly 210 and the emission recovery system 200, generally. The reservoir 922 may include the same and / or similar elements as the reservoir 222 of FIGS. 2A, 2B and 3, and the same and / or similar features and benefits thereof.

[099] Referring to FIGS. 9A and 9B, the bag chamber 922 may include a metal and / or polymer housing 900 supported by struts 902. The housing 900 may include a fitting 904 to interface with the inlet 806 of the vacuum pump 224. The housing 900 may include a fitting and / or structure on top and / or on the side thereof to seamlessly couple with the first duct region 132a of FIGS. 2A, 2B and 3. Through the fitting and / or structure, the housing 900 may transfer vacuum pressure from the vacuum pump 224 to the duct assembly 230 and may receive air including emissions collected by the vent assembly 210 from the duct assembly 230. Petition 870260046198, dated 05 / 15 / 2026, p. 48 / 111 41 / 70

[0100] Housing 900 may include one or more internal chambers 906 (e.g., 16 as shown), each with one or more filters and / or filter media. Housing 900 may be configured to pass incoming air through the chambers so that emissions therein are captured and / or bind to the filters and / or filter media before passing to the vacuum pump 224. For example, chambers 906 may include filter cartridges (e.g., bags, collection elements, etc.) to pass air through them with a length between 40 in and 120 in (e.g., 102 cm and 305 cm) and with between 15 and 50 pleats, providing an air-to-fabric ratio between 1.5 and 4. In addition, the filter cartridges may include a PTFE membrane layer over a yarn-bonded polyester substrate filter media and / or any similar suitable filter media. Filter bags can be configured in either a vertical or horizontal orientation.Housing 900 and / or chambers 906 can be configured so that an operator can open chambers 906 and remove and replace, or remove, clean, and reinstall the filters and / or filter media. The internal walls of housing 900 and / or chambers 906 can be coated with a corrosion-resistant coating (e.g., paint). Housing 900 may also include fire and explosion relief vents or windows configured to rupture when the internal pressure reaches a predetermined limit.

[0101] FIGS. 10A and 10B are various views of an emissions recovery system 1000, configured according to some embodiments of the present technology. Specifically, FIG. 10A is a top view of the emissions recovery system 1000; and FIG. 10B is a cross-sectional side view of selected components of the emissions recovery system 1000. The emissions recovery system 1000 may include elements generally similar or identical to the elements of the emissions recovery system 100 of FIG. 1 and / or the emissions recovery system 200 of FIGS. 2A and 2B. In addition, elements Petition 870260046198, dated 05 / 15 / 2026, page 49 / 111 42 / 70 similar devices may perform the same functions and / or provide the same benefits.

[0102] More specifically, the emission recovery system 1000 of FIGS. 10A and 10B may include the same vacuum assembly 220 (e.g., a vacuum assembly 1020), the same base duct portion 232 of the duct assembly 230 (e.g., a base duct portion 1032 of a duct assembly 1030, with a first duct region 1032a and a second duct region 1032b) and / or the same control system 250 (e.g., a controller 1050) as the emission recovery system 200 of FIGS. 2A and 2B. However, the emission recovery system 1000 of FIGS. 10A and 10B may include a ventilation assembly 1010 and a branched duct portion 1040 of the duct assembly 1030 different from the corresponding emission recovery system elements 200 of FIGS. 2A and 2B. For example, referencing FIGS.In sections 10A and 10B, the emissions recovery system 1000 may include the vent assembly 1010 and the branched duct portion 1040 supporting one or more additional vents 1017 laterally and / or vertically spaced from a first vent 1012, a second vent 1014, and a third vent 1016 (collectively, vents 1012, 1014, 1016). Furthermore, the emissions recovery system 1000 may include the vent assembly 1010 and the branched duct portion 1040 with the first vent 1012 and the second vent 1014 independently movable relative to each other.

[0103] With regard to additional openings 1017, the emissions recovery system 1000 may include additional openings 1017 for collecting dispersed emissions from a coke oven lined with the pusher plunger 252 and for operating the second gate extractor 254. The branched duct portion 1040 may include a first primary branch 1042, a second primary branch 1044 and a Petition 870260046198, dated 05 / 15 / 2026, page 50 / 111 43 / 70 third primary branch 1045, each with one or more primary, sub or terminal branches that extend or divide from it. Furthermore, each primary, sub- and / or terminal branch of the third primary branch 1045 may be in fluid communication with one or more of the additional openings 1017. For example, one or more of the additional openings 1017 may be directed to (or away from) the coke oven 1002 and aligned vertically and / or laterally with one or more of the openings 1012, 1014, 1016. Additionally, the emissions recovery system 1000 may include the additional openings 1017 to function like the openings 1012, 1014, 1016 in one or more additional coke ovens to collect emissions from a different operation and / or process of a coke oven charging system and / or to collect emissions from a completely different industrial process.In any of these applications, one or more of the additional openings 1017 may explicitly include, or exclude, one or more features of the openings 1012, 1014, 1016. Furthermore, one or more of the additional openings 1017 may include a corresponding hood assembly, such as the hood assembly 118 of FIG. 1 and / or the hood assembly 218 of FIGS. 2A and 2B. In some embodiments, one or more additional ventilation openings 1017 and / or branched duct portion 1040 may comprise or be fluidly coupled to a reservoir, multi-clone and / or air buffer, for example, separate from those of the first and second primary branches 1042, 1044.

[0104] With respect to the first vent 1012 and the second vent 1014 as independently movable relative to each other, and referencing FIG. 10B, the branched duct portion 1040 of the emission recovery system 1000 of FIGS. 10A and 10B may include positioning elements in, on, or integrated with duct sections directly coupled to the first vent 1012 and the second vent 1014, respectively. This is different from the branched duct portion 240 of the emission recovery system 200 of FIGS. 2A and 2B, where Petition 870260046198, dated 05 / 15 / 2026, page 51 / 111 44 / 70 the positioning elements can be implemented with duct sections not directly coupled to the first vent 212 or the second vent 214 (for example, implemented so that the first and second vents 212, 214 move in unison).

[0105] Specifically, the emissions recovery system 1000 of FIGS. 10A and 10B may include the branched duct portion 1040 having (i) the first primary branch 1042 with a first sub-branch 1042a (e.g., a first terminal branch) extending therefrom, (ii) a second sub-branch 1042b splitting off from the first primary branch 1042 and (iii) a first and a second terminal sub-branch 1042c, 1042d, each extending from or splitting off from the second sub-branch 1042b. The branched duct portion 1040 may also have (i) the second primary branch 1044 with a first sub-branch (e.g., a second terminal branch) extending from it, (ii) a second sub-branch splitting off from the first primary branch, and (iii) a first and a second terminal sub-branch, each extending from or splitting off from the second sub-branch.

[0106] In some embodiments, one or more of the primary, sub, and / or terminal branches of the 1040 branched duct portion may extend from or split off from any alternative primary, sub, and / or terminal branch other than that disclosed above. The 1040 branched duct portion may include one or more additional primary, sub, and / or terminal branches (e.g., duplicate branches, etc.) that extend from or split off from one of the listed primary, sub, or terminal branches. In addition, each of the primary, sub, and / or terminal branches may include a flow-limiting valve (e.g., a butterfly valve, blade damper, guillotine damper, louver damper, inlet vane damper, etc.) configured to limit flow through the respective branch and any downstream branch therefrom. Petition 870260046198, dated 05 / 15 / 2026, p. 52 / 111 45 / 70

[0107] The first vent 1012 can be fluidly coupled to the first terminal sub-branch 1042c of the first primary branch 1042 and to the first terminal sub-branch of the second primary branch 1044. The second vent 1014 can be fluidly coupled to the second terminal sub-branch 1042d of the first primary branch 1042 and to the second terminal sub-branch of the second primary branch 1044. Each of the first and / or second terminal sub-branches of the first primary branch 1042 and each of the first and / or second terminal sub-branches of the second primary branch 1044 (collectively, the direct connection branches) may include positioning elements within, on, or integrated therewith, configured to position the first and / or second vents 1012, 1014. For example, each of the direct connection branches may include a vent positioning element.The ventilation positioning elements may allow the first vent 1012 and the second vent 1014 to move (e.g., translate, rotate, bend, etc.) — individually in relation to or toward or away from the loading plunger 262, the first door extractor 264 and / or the coke oven 302 of FIGS. 2A, 2B and 3.

[0108] Vent positioning elements may be a telescopic TF feature of each of the direct connection branches. In this arrangement, the telescopic TF features may position either the first vent 1012 or the second vent 1014 relative to the upper surface of the loading plunger 262. For example, each of the direct connection branches may include a first portion and a second portion of the duct section, with the first portion configured to nest within the second portion. Either of the first or second portions may engage with the first and second vents 1012, 1014 and may translate along the respective lengths of the direct connection branches. The telescopic TF features may allow the first vent Petition 870260046198, dated 05 / 15 / 2026, page 53 / 111 46 / 70 1012 and the second vent 1014 translate between a retracted position (as shown in FIG. 10B) and an extended position, 30 in (e.g., 76 cm) from the retracted position.

[0109] FIG. 11 is a flow diagram illustrating a method 1100 for collecting emission particles during the charging of a coke oven, according to some embodiments of the present technology. For example, method 1100 can be implemented to collect emission particles generated during a charging process with at least the emission recovery system 100 of FIG. 1, the emission recovery system 200 of FIGS. 2A and 2B, the emission recovery system 1000 of FIGS. 10A and 10B and / or any other emission recovery system for industrial installations. The operations of method 1100 are for illustrative purposes only and are not limiting. In some embodiments, for example, method 1100 can be carried out with one or more additional operations not described, without one or more of the operations described, or with operations described and / or not described in an alternative order.

[0110] With reference to FIG. 11, method 1100 may generally include coordinating an emissions recovery system with a coke oven charging system during a coke oven charging process. For example, before, during, and / or after a charging plunger loads coal into a coke oven, (i) a venting assembly of the emissions recovery system may be positioned to capture emissions from the coke oven and / or a charging plunger of the charging system; (ii) a vacuum assembly of the emissions recovery system may be activated, monitored, and / or adjusted to maintain a certain vacuum pressure in the venting assembly and to ensure proper emission collection; and / or (iii) elements of a duct assembly of the emissions recovery system (between the venting assembly and the vacuum assembly) may be activated, monitored, and / or adjusted to ensure a certain temperature and / or Petition 870260046198, dated 05 / 15 / 2026, page 54 / 111 47 / 70 pressure within the emissions recovery system. One or more of these operations may be managed manually by an operator and / or automatically by a controller or control system of the emissions recovery system or, more broadly, the coke oven charging system.

[0111] In particular, method 1100 may include (i) providing a coke oven including a loading opening and a loading door at the loading opening (process portion 1102); (ii) drawing a vacuum within the duct of an emissions recovery system, wherein the emissions recovery system includes a first vent at a first distance from the loading door and a second vent at a second distance from the loading door (process portion 1104); (iii) opening the loading door (process portion 1106), (iv) loading coal into the coke oven via a coal loading system (process portion 1108) and (v) collecting, while loading coal into the coke oven, dust particles at the loading opening via the first vent and the second vent (process portion 1110).

[0112] The supply of the coke oven including the loading opening and loading door (process portion 1102) may include the alignment of a coke oven loading system having the emissions recovery system implemented with the coke loading opening. For example, the coke oven or the loading system may be positionable relative to each other by means of rails or other positioning means. The coke oven and the loading system may be wound towards each other until a loading drawer of the loading system is aligned with the coke oven. Once aligned, the coke oven and / or the loading system may be fixed in place. In some embodiments, the coke oven and the loading system may be rigidly fixed (i.e., not movable) to an industrial floor or ground, aligned with each other. Petition 870260046198, dated 05 / 15 / 2026, page 55 / 111 48 / 70

[0113] Vacuum extraction within the emissions recovery system duct (process portion 1104) may include starting a vacuum pump from the vacuum assembly, thereby establishing a vacuum within the vacuum assembly which may be extended to the vent assembly via the duct assembly. The vacuum established within the vent assembly may generate suction from the first vent, the second vent, and any additional vents. Furthermore, vacuum extraction may include monitoring pressure, temperature, and / or airflow (e.g., by means of sensor readings) at one or more locations within the vent assembly, vacuum assembly, and / or duct assembly. Based on one or more of the readings, the operating speed of the vacuum pump may be increased or decreased to maintain one or more of these characteristics within a certain operating range.In addition, one or more elements of the pipeline assembly, such as a check valve, a spark arrestor, and / or a temperature control valve, may operate similarly to maintain one or more of these characteristics within a certain operating range.

[0114] Opening the loading door (process portion 1106) may involve manual or automatic removal of the loading door from the coke oven. For example, an operator may manually move the loading door with heavy industrial equipment, such as an excavator, to expose the loading opening. Additionally or alternatively, the loading system may include one or more door pullers (for example, a first door puller near a loading plunger and a second door puller near a pusher plunger) which, when aligned, may unlock and selectively remove the loading door. For example, each of the door pullers may include an assembly configured to slide, rotate, lift and / or pull the loading door so that the loading door is removed from in front of the loading opening. Petition 870260046198, dated 05 / 15 / 2026, page 56 / 111 49 / 70

[0115] Loading coal into the coke oven via the coal loading system (process portion 1108) may include positioning the loading drawer inside the coke oven or the coke oven around the loading drawer and loading coal into the coke oven. During coal loading into the coke oven, collecting emission particles (as well as other gases or gaseous matter expelled by the charging plunger and coke oven) at the loading opening via the first vent and second vent (process portion 1110) may include suction at the first and second vents by the vacuum pump extracting emission particles into the vent openings. The emission particles collected by the first vent and second vent may then move through the ductwork and into collection assemblies within a reservoir or other receptacle of the vacuum assembly.Emission particle collection may also include one or more hood assemblies that partially or completely surround one or more of the vents, directing the emission particles toward the suction of the first and second vents.

[0116] Method 1100 may further include pushing coke through a pusher plunger of the coke oven and collecting dust particles in the pusher opening through one or more vents. For example, the second door extractor, as described in this document, may remove a door from an oven containing coke and push the coke through the pusher plunger while collecting dust particles in the pusher opening. Emission particles collected by one or more vents may then travel through the ductwork and to collection assemblies within a reservoir or other receptacle of the vacuum assembly. Emission particle collection may also include one or more hood assemblies that partially or completely surround one or more of the vents, directing the emission particles to the suction of one or more vents. Petition 870260046198, dated 05 / 15 / 2026, p. 57 / 111 50 / 70

[0117] FIGS. 12A-12C are views of an emissions recovery system 1200 implemented with a coke oven loading system 1260 (e.g., a PCM), configured according to some embodiments of the present technology. Specifically, FIG. 12A is a perspective view of the loading system 1260 from a coal loading side, FIG. 12B is a perspective view of the loading system 1260 from an opposite side, and FIG. 12C is a top view of the loading system 1260. The emissions recovery system 1200 may include elements generally similar or identical to the elements of the emissions recovery system 100 of FIG. 1 and / or the emissions recovery system 200 of FIGS. 2A and 2B. Furthermore, similar elements may perform the same or similar functions and / or provide the same or similar benefits.

[0118] Referring to FIGS. 12A-12C together, the loading system 1260 may include a loading plunger 1262 and a pusher plunger 1252, each with a loading end on the loading side (e.g., a first side, coal loading side) of the loading system 1260 and with a loading end on the loading side (e.g., a second side, pusher side; e.g., extending along a length) of the loading system 1260. The loading plunger 1262 and the pusher plunger 1252 may each include a conveyor system configured to receive coal on the loading side and transport the coal to the loading side. The loading plunger 1262 and the pusher plunger 1252 may also include a positioning assembly configured to position (e.g., locate, translate, rotate, move, etc.)) the loading end (or a portion of the loading plunger 1262 or the pusher plunger 1252 on the loading side) along the length of the loading system 1260 and / or within a coke oven 302 (see FIG. 3). For example, the plunger of. Petition 870260046198, dated 05 / 15 / 2026, page 58 / 111 51 / 70 loading 1262 can follow (e.g., move along) a path P away from the loading system 1260 and to the corresponding coke oven (e.g., coke oven 302; FIG. 3) located adjacent to the loading system 1260. The loading system 1260 may also include a first coke oven door extractor 1264 and a second coke oven door extractor 1254. The first and second door extractors 1264 and 1254 can be configured to remove (e.g., lift, open, move, rotate, etc.) a coke oven door, providing an opening for the loading plunger 1262 or the pusher plunger 1252 to extend and load the coke oven 1302. The coal hopper 1266 can be configured to distribute coal into the loading drawer 1262.

[0119] As shown, the emissions recovery system 1200 can be implemented with the loading system 1260 to collect emissions produced by it, as well as emissions expelled by the coke oven, thus preventing these emissions from entering the surrounding environment and recapturing coal and / or coke for processing and / or future use. The emissions recovery system 1200 may include a venting assembly 1210 fluidly coupled to a vacuum assembly 1220 by a duct assembly 1230. The vacuum assembly 1220 may include a vacuum pump, an ID fan and / or the like and may be operated to apply a vacuum pressure to the venting assembly 1210 by means of the duct assembly 1230.The operation of the ventilation assembly 1210, the vacuum assembly 1220 and / or the duct assembly 1230 and one or more elements thereof may be managed manually or automatically by a control system located in a control room above the pusher piston or between the loading piston 1262 and the bag compartment 1222.

[0120] Ventilation assembly 1210 can be positioned on the charging side of the charging system 1260, with a first vent 1212 above Petition 870260046198, dated 05 / 15 / 2026, page 59 / 111 52 / 70 the loading end of the loading piston 1262 and a second vent 1214 over the loading end of the pusher piston 1252. For example, the first vent 1212 and the second vent 1214 may be directed towards (or away from) the loading piston 1262, the pusher piston 1252 and / or the coke oven opening 302 (for example, the first door extractor 1264 or the second door extractor 1254). Each of the first and second openings 1212 and 1214 may be rotated manually or automatically by at least about one length the same. A first hood assembly 1218, supported by a first hood structure 1274, may at least partially enclose (e.g., vertically and / or laterally) the first vent 1212 and similarly extend over the charging plunger 1262, the first door extractor 1264 and / or the coke oven opening.A second hood assembly 1219, supported by a second hood structure 1275, may at least partially enclose (e.g., vertically and / or laterally) the second vent 1214 and similarly extend over the pusher plunger 1252, the second door extractor 1254, and / or the coke oven opening. The first and second hood assemblies 1218 and 1219 are sized and configured to prevent humid air from the environment from entering the suction region and to maintain high pressure within the suction region. A diverter 1221 may be positioned to divert wholly or partially the vacuum pressure applied by the vacuum assembly 1220 between the first vent 1212 and the second vent 1214. For example, the diverter 1221 may include a valve, a movable flap, and / or the like.In operation, the diverter 1221 can be controlled (e.g., dynamically controlled) to distribute the vacuum pressure between the first vent 1212 and the second vent 1214 by a desired ratio.

[0121] Regarding separation distances, the first vent 1212 may be at a first vertical distance from the loading piston 1262 and the Petition 870260046198, dated 05 / 15 / 2026, pp. 60 / 111 53 / 70 second vent 1214 may be at a second vertical distance from the pusher piston 1252. The first vent 1212 may be at a first lateral distance from the first door extractor 1264 and the second vent 1214 may be at a second lateral distance from the second door extractor 1254.

[0122] In operation, while the loading piston 1262 loads coal into the coke oven, the first vent 1212 can be at least partially activated and the second vent 1214 can be at least partially deactivated (e.g., via diverter 1221). Therefore, emissions around the loading piston 1262 can be directed to the first vent 1212. Conversely, while the pusher piston 1252 pushes coke out of the coke oven, the second vent 1214 can be at least partially activated and the first vent 1212 can be at least partially deactivated (e.g., via diverter 1221). Therefore, emissions around the pusher piston 1252 can be directed to the second vent 1214. Consequently, the vent assembly 1210 can maximize or provide a relatively large draft to collect particles and other emissions.Furthermore, selective activation of multiple vents, as opposed to using a single larger vent, can maintain relatively high draft and / or velocity (e.g., assuming a constant fan size).

[0123] FIG. 13 is a perspective view of the first hood assembly 1218 of the emissions recovery system 1200, configured according to the embodiments of this technology. The first hood assembly 1218 may include a front plate 1370, one or more side plates 1372, one or more rear plates 1376 (plates 1370, 1372, 1376) and a hood roof 1378. The rear plates 1376 and the hood roof 1378 form an opening 1374 through which the charging plunger 1262 may enter the corresponding coke oven. The hood roof 1378 may have an opening 1380 into which the first vent 1212 may fit. Petition 870260046198, dated 05 / 15 / 2026, pp. 61 / 111 54 / 70 Plates 1370, 1372, 1376 and / or the hood roof 1378 may include one or more individually reinforced metal plates and / or plates joined by crossbeams. Additionally or alternatively, plates 1370, 1372, 1376 and / or the hood roof 1378 may include one or more flexible flaps and / or non-rigid materials (e.g., tarpaulins). Plates 1370, 1372, 1376 may be vertically and / or laterally, manually or automatically adjustable to match the placement of the loading system 1260 relative to the coke oven 302. Additionally or alternatively, plates 1370, 1372, 1376 may be extendable (e.g., including nesting portions) relative to the first vent 1212. In some embodiments, plates 1370, 1372, 1376 may include brushes (e.g., made of stainless steel or other materials) configured to seal any remaining gaps between the first hood assembly 1218 and the coke oven 302 (see FIG. 17).By including the first hood assembly 1218, plates 1370, 1372, 1376 thereof can direct emissions from the charging piston 1262 and / or the coke oven 302 that might otherwise not be collected by suction from the ventilation assembly 1210 to the first vent section 1212.

[0124] Plates 1370, 1372, 1376 can be mechanically coupled to the first hood structure 1274. Alternatively, the first hood structure 1274 can be omitted, with plates 1370, 1372, 1376 directly coupled to the first vent 1212. In some embodiments, the first hood assembly 1218 may include additional plates extending coplanarly with, or at an angle from, plates 1370, 1372, 1376 and / or skirts (e.g., flexible metal and / or non-metal) to form a seal with and / or for improved direct emissions from the coke oven 302.

[0125] FIG. 14 is a perspective view of the second hood assembly 1219 of the emissions recovery system 1200, configured according to embodiments of the present technology. The second hood assembly 1219 may include Petition 870260046198, dated 05 / 15 / 2026, page 62 / 111 55 / 70 a front plate 1470, one or more side plates 1472, one or more rear plates 1476 (plates 1470, 1472, 1476) and a hood roof 1478. The rear plates 1476 form an opening 1474 through which the pusher plunger 1252 can enter the coke oven 302. The hood roof 1478 may have an opening 1480 into which the second vent 1214 can fit. Plates 1470, 1472, 1476 and / or the hood roof 1478 may include one or more metal plates individually reinforced and / or combined by crossbeams. Additionally or alternatively, plates 1470, 1472, 1476 and / or the hood roof 1478 may include one or more flexible flaps and / or non-rigid materials (e.g., tarpaulins). Plates 1470, 1472, 1476 may be vertically and / or laterally adjustable, manually or automatically, to match the placement of the loading system 1260 in relation to the coke oven 302.Additionally or alternatively, plates 1470, 1472, 1476 may be extendable (e.g., including nesting portions) relative to the second vent 1214. In some embodiments, plates 1470, 1472, 1476 may include brushes (e.g., made of stainless steel or other materials) configured to seal any remaining gaps between the second hood assembly 1219 and the coke oven 302 (see FIG. 17). By including the second hood assembly 1219, plates 1470, 1472, 1476 thereof may direct emissions from the impeller piston 1252 and / or the coke oven 302 that might otherwise not be collected by suction from the vent assembly 1210 to the second vent section 1214.

[0126] Plates 1470, 1472, 1476 can be mechanically coupled to the second hood structure 1275. Alternatively, the second hood structure 1275 can be omitted, with plates 1470, 1472, 1476 directly coupled to the second vent 1214. In some embodiments, the second hood assembly 1219 may include additional plates extending coplanarly with, or at an angle from, plates 1470, 1472, 1476 and / or skirts (e.g., flexible metal and / or Petition 870260046198, dated 05 / 15 / 2026, page 63 / 111 56 / 70 non-metal) to form a seal with and / or for better direct emissions from the coke oven 302.

[0127] FIGS. 15A and 15B are perspective and side views of a hood assembly 1518 of the emissions recovery system 1200, configured according to embodiments of the present technology. The hood assembly 1518 may include a vertical drop plate 1570, one or more side plates 1572, and one or more intermediate plates 1576 (plates 1570, 1572, 1576). Plates 1570, 1572, 1576 may be sized and configured to prevent humid air from the environment from entering the suction region and to maintain high pressure within the suction region. In some embodiments, a vertical length of the vertical drop plate 1570 may be at least 6 inches, 8 inches, 10 inches, or 8-10 inches. In some embodiments, a vertical length of the 1572 side plate may be at least 4 inches, 5 inches, 6 inches, or 4-6 inches.In some embodiments, a vertical length of the 1576 intermediate plate may be at least 7 inches, 9 inches, 11 inches, or 7-11 inches. The dimensions of the 1570, 1572, and 1576 plates may also be sized and configured to provide sufficient PCM hood clearance for a battery (e.g., a series of 302 coke ovens) based on buckstay slope, brake mounting location, and tie rod length.

[0128] The left side of FIG. 16 is a perspective view of a support 1684 and the right side of FIG. 16 is a perspective view of the support 1684 coupled to the brush strip 1682, configured according to embodiments of the present technology. The brush strip 1682 can be made of steel or other materials. The brush strip 1682 can be configured to attach to the plates (for example, plates 1370, 1372, 1376 shown in FIG. 13, plates 1470, 1472, 1476 shown in FIG. 14, plates 1570, 1572, 1576 shown in FIGS. 15A and 15B) through the support 1684. In operation, the brush strip 1682 can be configured to seal or at least Petition 870260046198, dated 05 / 15 / 2026, pp. 64 / 111 57 / 70 partially close any gaps between a hood assembly (e.g., the first hood assembly 1218) and a coke oven (e.g., coke oven 302).

[0129] FIG. 17 is a side view of selected components of an emissions recovery system 1700, configured according to embodiments of the present technology. As shown, a hood assembly 1718 includes a vertical drop plate 1770, one or more side plates 1772 and one or more intermediate plates 1776 (plates 1770, 1772, 1776). Brush strips 1782 (e.g., brush strip 1682) can be attached to portions of plates 1770, 1772, 1776 facing or near a coke oven 1702 (e.g., coke oven 302) by means of supports 1784 (e.g., supports 1684). Brush strips 1782 can be configured to seal or at least partially close any gaps between the hood assembly 1718 and the coke oven 1702.

[0130] FIGS. 18A and 18B are views of an emissions recovery system 1800 implemented with a coke oven loading system 1860 (e.g., a PCM), configured according to some embodiments of the present technology. Specifically, FIG. 18A is a front perspective view of the loading system 1860 from a coal loading side and FIG. 18B is a rear perspective view of the loading system 1860 from an opposite side with selected components removed. Referring to FIGS. 18A and 18B together, the loading system 1860 may include a loading plunger 1862, a pusher plunger 1852 and a coke oven door extractor 1854. The emissions recovery system 1800 may include a first hood assembly 1818, a second hood assembly 1819, a first vent 1812, a second vent 1814 and a third vent 1820.The 1800 emissions recovery system may include additional or alternative elements that are generally similar or identical to the elements of the emissions recovery system. Petition 870260046198, dated 05 / 15 / 2026, page 65 / 111 58 / 70 100 of FIG. 1 and / or of the emissions recovery system 200 of FIGS. 2A and 2B. Furthermore, similar elements may perform the same or similar functions and / or provide the same or similar benefits.

[0131] In the illustrated embodiment, the first vent 1812 is positioned above the loading piston 1862, the second vent 1814 is positioned above the impeller piston 1852, and the third vent 1820 is positioned above the coke oven door extractor 1854. The first, second, and third openings 1812, 1814, 1820 can be moved manually or automatically and / or rotated to optimize emissions recovery. As shown in FIG. 18B, the first, second, and third openings 1812, 1814, 1820 can be seamlessly coupled to a larger duct. The first hood assembly 1818 may at least partially enclose (e.g., vertically and / or laterally) the first vent 1812 and similarly extend over the charging plunger 1862 and / or the coke oven opening.Similarly, the second hood assembly 1819 may at least partially enclose (e.g., vertically and / or laterally) the second vent 1814 and extend similarly over the impeller piston 1852 and / or the coke oven opening. The first and second hood assemblies 1818, 1819 are sized and configured to prevent humid air from the environment from entering the suction region and to maintain high pressure within the suction region.

[0132] Regarding separation distances, the first vent 1812 may be at a first vertical distance from the loading piston 1862, the second vent 1814 may be at a second vertical distance from the pusher piston 1852, and the third vent 1820 may be at a third vertical distance from the door extractor 1854. The first vent 1812 may be at a first lateral distance from the door extractor 1854, and the second vent 1814 may Petition 870260046198, dated 05 / 15 / 2026, p. 66 / 111 59 / 70 is a second lateral distance from the door extractor 1254.

[0133] Each of the loading plunger 1862 and the pusher plunger 1852 may include a loading end on the loading side (e.g., a first side, coal loading side) of the loading system 1860 and a loading end on the loading side (e.g., a second side, pusher side; e.g., extending along a length) of the loading system 1860. The loading plunger 1862 and the pusher plunger 1852 may each include a conveyor system configured to receive coal on the loading side and transport the coal to the loading side. The loading hopper 1862 and the pusher hopper 1852 may also include a positioning assembly configured to position (e.g., locate, translate, rotate, move, etc.)The loading end (or a portion of the loading spool 1862 or the pusher spool 1852 on the loading side) runs along the length of the loading system 1860 and / or inside a coke oven (see, for example, coke oven 302 in FIG. 3). In the illustrated embodiment, the coke oven door extractor 1854 is positioned between the loading spool 1862 and the pusher spool 1852. The coke oven door extractor 1854 can be configured to remove (e.g., lift, open, move, rotate, etc.) a coke oven door, providing an opening for the loading spool 1862 and / or the pusher spool 1852 to extend and load the coke oven.

[0134] As shown, the 1800 emissions recovery system can be implemented with the 1860 loading system to collect the emissions produced, as well as the emissions expelled by the coke oven, thus preventing these emissions from entering the surrounding environment and recapturing coal and / or coke for processing and / or future use. In some embodiments, the 1800 emissions recovery system includes a fluidly coupled ventilation assembly to a Petition 870260046198, dated 05 / 15 / 2026, page 67 / 111 60 / 70 vacuum assembly per duct assembly. The operation of the ventilation assembly, vacuum assembly and / or duct assembly and one or more elements thereof may be managed manually or automatically by a control system.

[0135] In some embodiments, the first vent 1812, the second vent 1814, and the third vent 1820 may be connected differently from the embodiment illustrated. For example, the second vent 1814 and the third vent 1820 may extend from the same orifice. In another example, the third vent 1820 may extend directly from the first vent 1812. In some embodiments, the first vent 1812, the second vent 1814, and / or the third vent 1820 may be operated in conjunction with a shutter damper to control the opening of each vent and thus the emission gas flow. In some embodiments, the opening control operations of each vent may be at least partially linked so that, for example, when the first vent 1812 is open, the third vent 1820 is closed and vice versa.Other combinations of mooring vent opening and closing operations are within the scope of the present technology.

[0136] In some embodiments, the emissions recovery system 1800 includes fewer additional or alternative components compared to the embodiment illustrated. For example, the emissions recovery system 1800 may not include the second vent 1814 and the second hood assembly 1819, and the pusher piston 1852 may operate without emissions recovery. In another example, another hood assembly may be positioned around the coke oven door extractor 1854 and configured to direct emissions toward the third vent 1820. In another example, another hood (and vent) assembly may be positioned over a coal feed hopper (e.g., located above the loading piston 1862 or the pusher piston 1852), over a furnace. Petition 870260046198, dated 05 / 15 / 2026, pp. 68 / 11161 / 70 of coke or behind the 1860 charging system. In another example, the 1860 coke oven charging system may include a coke stamp positioned adjacent to the 1862 charging plunger and configured for stamp charging, and the 1800 emissions recovery system may include another pair of vent and hood assemblies positioned above the coke stamp. In yet another example, the 1860 coke oven charging system may include a decoupling drawer configured to discharge or clean the oven, and the 1800 emissions recovery system may include another pair of vent and hood assemblies positioned above the decoupling drawer. In some embodiments, a pair of ventilation and hood assemblies is positioned over any component of the 1860 coke oven charging system that is expected to engage with the oven for at least approximately 5 seconds, 10 seconds, 15 seconds, 20 seconds, 25 seconds, 30 seconds or more. III. Conclusion

[0137] It will be evident to those skilled in the art that changes can be made to the details of the embodiments described above without departing from the underlying principles of the present disclosure. In some cases, well-known structures and functions have not been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments of the present technology. Although the steps of the methods may be presented in this document in a particular order, alternative embodiments may perform the steps in a different order. Similarly, certain aspects of the present technology disclosed in the context of particular embodiments may be combined or eliminated in other embodiments. Furthermore, although the advantages associated with certain embodiments of the present technology may have been disclosed in the context of those embodiments, other embodiments may also exhibit such advantages, and not all embodiments require such advantages. Petition 870260046198, dated 05 / 15 / 2026, pp. 69 / 111 62 / 70 sam necessarily exhibit such advantages or other advantages disclosed in this document to fall within the scope of the technology. Consequently, the disclosure and associated technology may encompass other embodiments not expressly shown or described in this document, and the invention is not limited except by the appended claims.

[0138] Throughout this disclosure, the singular terms a, an, and the include plural referents unless the context clearly indicates otherwise. Furthermore, the terms comprising, including, and having should be interpreted as including at least the recited feature(s), so that any larger number of the same feature and / or additional types of other features are not precluded.

[0139] Reference in this document to an embodiment, an embodiment, some embodiments, or similar formulations means that a particular feature, structure, operation, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present technology. Thus, the appearances of such phrases or formulations in this document are not necessarily all referring to the same embodiment. Furthermore, several particular features, structures, operations, or characteristics may be combined in any suitable manner in one or more embodiments.

[0140] Unless otherwise indicated, all numbers expressing dimensions, pressures, and other numerical values ​​used in the descriptive report and claims should be understood as being modified in all cases by the term "approximately." Therefore, unless otherwise indicated, the numerical parameters set forth in the following descriptive report and appended claims are approximations that may vary depending on the desired properties to be obtained by the present technology. At a minimum, and not as an attempt to limit the application of the doctrine of equivalents to the scope of the claims, each Petition 870260046198, dated 05 / 15 / 2026, pp. 70 / 111 The 63 / 70 numerical parameter should at least be interpreted in light of the reported number of significant digits and by applying common rounding techniques. Furthermore, all ranges disclosed in this document should be understood as encompassing any and all sub-ranges included within them. For example, a range of 1 to 10 includes any and all sub-ranges between (and including) the minimum value of 1 and the maximum value of 10, i.e., any and all sub-ranges with a minimum value equal to or greater than 1 and a maximum value equal to or less than 10, for example, 5.5 to 10.

[0141] The disclosure set forth above should not be interpreted as reflecting an intention that any claim requires more features than those expressly cited in that claim. Rather, as the following claims reflect, the inventive aspects are in a combination of less than all the features of any single embodiment previously disclosed. Thus, the claims that follow this Detailed Description are expressly incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment. This disclosure includes all permutations of the independent claims with their dependent claims.

[0142] The present technology is illustrated, for example, according to various aspects described below as numbered clauses (1, 2, 3, etc.) for convenience. These are provided as examples and do not limit the present technology. Note that any of the dependent clauses can be combined in any combination and placed in a respective independent clause. The remaining clauses can be presented in a similar way. 1. An emissions recovery system for use in an industrial facility, comprising: a duct having a first end region fluidly coupled to a reservoir and a second end region opposite the first end region, wherein the duct is configured to operate under a vacuum; Petition 870260046198, dated 05 / 15 / 2026, pp. 71 / 111 64 / 70 a first vent fluidly coupled to the second end region, wherein the first vent is positionable at a first distance from an opening and configured to collect emission particles released from the opening; and a second vent fluidly coupled to the second end region, wherein the second vent is positionable at a second distance from the first vent and configured to collect emission particles released from the opening. 2. The emissions recovery system of any of the clauses of this document, further comprising a first duct branch and a second duct branch, each extending from the second end region, wherein the first duct branch is fluidly coupled to a first end of the first vent and a first end of the second vent, and the second duct branch is fluidly coupled to a second end of the first vent and a second end of the second vent. 3. The emissions recovery system of any of the clauses in this document, where the opening corresponds to a coke oven door. 4. The emission recovery system of any of the clauses of this document, wherein the opening is a first opening corresponding to a loading door of a coke oven, the emission recovery system further comprising a third vent positioned to collect emission particles released from a second opening corresponding to a push door of the coke oven. 5. The emissions recovery system of any of the clauses in this document further comprising a third vent fluidly coupled to the second end region, wherein the third vent is positioned Petition 870260046198, dated 05 / 15 / 2026, pp. 72 / 111 65 / 70 vel at a third distance from the opening and configured to collect emission particles released from the opening. 6. The emissions recovery system of clause 5, further comprising a hood assembly on the third vent and configured to direct emission particles released from at least the vent towards the third vent. 7. The emissions recovery system in clauses 5 or 6, where the first distance and the second distance each include a lateral distance component and a vertical distance component, and the third distance includes a vertical distance component. 8. The emissions recovery system of any of the clauses of this document, in which the first vent and the second vent are each positionable around an axis along their respective lengths. 9. The emissions recovery system of any of the clauses in this document, in which the first vent and the second vent are each positionable along a lateral distance from the opening. 10. The emissions recovery system of any of the clauses in this document, in which the first vent and the second vent are each positionable along a vertical distance from the opening. 11. The emissions recovery system of any of the clauses in this document, wherein the first vent and the second vent each include a housing and a faceplate attached to the housing, and wherein the faceplate includes a plurality of openings configured for emission particles released from the opening to pass through thereto. 12. The emissions recovery system of clause 10, in which the first vent and the second vent each include a closure assembly. Petition 870260046198, dated 05 / 15 / 2026, page 73 / 111 66 / 70 configured to selectively modify the size of the openings of the first vent and the second vent, respectively. 13. The emissions recovery system of any of the clauses of this document, further comprising a check valve coupled to the duct and configured to limit airflow within the duct from the second end region to the first end region. 14. The emissions recovery system of any of the clauses of this document, further comprising a spark arrestor coupled to the duct between the first end region and the second end region and configured to extinguish embers within the duct. 15. The emissions recovery system of any of the clauses of this document, further comprising a temperature control valve coupled to the duct between the first end region and the second end region and configured to allow air from outside the duct into the duct to reduce the temperature therein. 16. The emissions recovery system, in accordance with clause 1, further comprising: A draft-in duct fan coupled to the duct and configured to apply pressure inside the duct; a diverter coupled to the second end region of the duct and configured to divert all or part of the pressure applied by the traction fan induced between the first vent and the second vent; a first set of hoods positioned to at least partially enclose the first vent; and a second set of hoods spaced from the first hood and positioned to at least partially enclose the second vent, wherein the first vent is configured to be positioned over a Petition 870260046198, dated 05 / 15 / 2026, pp. 74 / 111 67 / 70 loading end of a loading piston, wherein the second vent is configured to be positioned over a loading end of a pusher piston spaced laterally from the loading piston, wherein, when the loading piston is in operation, the diverter is configured to divert the pressure mainly to the first vent, and wherein, when the pusher piston is in operation, the diverter is configured to divert the pressure mainly to the second vent. 17. An emissions recovery system for use in an industrial facility, comprising: a base duct portion having a first end region fluidly coupled to a bag chamber and a second end region opposite the first end region, wherein the base duct portion is configured to operate under a vacuum; A vent having a first end region and a second end region opposite the first end region, wherein the vent is positionable in an opening and configured to collect emission particles released at the opening; a first duct branch extending from the second end region of the base duct portion to the first end region of the vent; and a second duct branch extending from the second end region of the base duct portion to the second end region of the vent. 18. The emissions recovery system for any of the clauses in this document: where the vent is a first vent and the recovery system Petition 870260046198, dated 05 / 15 / 2026, pp. 75 / 111 68 / 70 emissions further comprises a second vent having a first end region and a second end region opposite the first end region; where the second vent is positionable at the opening and configured to collect emission particles released at the opening; wherein the first duct branch extends further from the second end region of the base duct portion to the first end region of the second vent; and wherein the second duct branch extends further from the second end region of the base duct portion to the second end region of the second vent. 19. The emissions recovery system of any of the clauses of this document, where the first pipeline branch and the second pipeline branch each include a first sub-branch and a second sub-branch. 20. The emissions recovery system of clause 17, in which the first sub-branch of the first duct branch is fluidly coupled to the first end region of the first vent and the first sub-branch of the second duct branch is fluidly coupled to the second end region of the first vent. 21. The emissions recovery system of clause 17, wherein the second sub-branch of the first pipeline branch is fluidly coupled to the first end region of the second vent and the second sub-branch of the second pipeline branch is fluidly coupled to the second end region of the second vent. 22. A coke system, comprising: a coke oven including a loading door on one loading side of the oven; and Petition 870260046198, dated 05 / 15 / 2026, pp. 76 / 111 69 / 70 an emissions recovery system, including: a duct fluidly coupled to a bag chamber and an induced traction fan, the duct having a first duct branch and a second duct branch; a first vent at a first distance from the loading port; and a second vent at a second distance from the loading port, wherein each of the first and second vents includes a first end fluidly coupled to the first duct branch and a second end fluidly coupled to the second duct branch. 23. The coking system of any of the clauses in this document, wherein the emissions recovery system further includes a third vent at a third distance from the loading door, wherein the third vent includes a first end fluidly coupled to the first duct branch and a second end fluidly coupled to the second duct branch. 24. The coking system of any of the clauses in this document, in which the induced draft fan is configured to establish a variable vacuum pressure within the duct. 25. The coking system, according to clause 22, in which the induced draft fan is configured to apply pressure within the duct and in which the emissions recovery system further includes: a third vent at a third distance from the loading port; and a diverter coupled to the duct and configured to divert primarily the pressure applied by the induced draft fan to (i) the first vent and the second vent or (ii) the third vent based on a coke system operating mode. 26. A method for collecting emission particles during charging. Petition 870260046198, dated 05 / 15 / 2026, page 77 / 111 70 / 70 of a coke oven, the method comprising: to provide a plurality of coke ovens including a first oven and a second oven adjacent to the first oven, wherein the first oven has a first door and the second oven has a second door; To extract a vacuum within the duct of an emissions recovery system, wherein the emissions recovery system includes a first vent configured to collect emissions from the first port and a second vent configured to collect emissions from the second port; remove the first door; Loading coal into the first furnace via a coal loading system; and collecting emission particles while loading coal into the first furnace through the first vent. 27. The method of any of the clauses in this document, including: remove the second door; Push coke from the second furnace through a pusher drawer; and collect, while pushing the coke from the second furnace, emission particles from the second furnace through the second vent. 28. The method of any of the clauses in this document, wherein the first gate is spaced from the second gate along a lateral axis, the method further comprising running over a pusher loader machine (PCM) along the lateral axis, wherein the collection of emission particles occurs while running over the PCM. Petition 870260046198, dated 05 / 15 / 2026, pp. 78 / 111

Claims

1 / 7 CLAIMS 1. Emission recovery system for use in an industrial facility, CHARACTERIZED in that it comprises: a duct having a first end region fluidly coupled to a reservoir and a second end region opposite the first end region, wherein the duct is configured to operate under a vacuum; a first vent fluidly coupled to the second end region, wherein the first vent is positionable at a first distance from an opening and configured to collect emission particles released from the opening; and a second vent fluidly coupled to the second end region, wherein the second vent is positionable at a second distance from the first vent and configured to collect emission particles released from the opening.

2. Emission recovery system, according to claim 1, CHARACTERIZED in that it further comprises a first duct branch and a second duct branch, each extending from the second end region, wherein the first duct branch is fluidly coupled to a first end of the first vent and a first end of the second vent, and the second duct branch is fluidly coupled to a second end of the first vent and a second end of the second vent.

3. Emission recovery system, according to claim 1, CHARACTERIZED in that the opening corresponds to a coke oven door.

4. Emission recovery system, according to claim 1, CHARACTERIZED in that the opening is a first opening corresponding to a loading door of a coke oven, the emission recovery system further comprising a third vent positioned to collect emission particles released from a second opening corresponding to a push door of the coke oven.

5. Emission recovery system, according to claim 1, CHARACTERIZED in that it further comprises a third vent fluidly coupled to the second end region, wherein the third vent is positionable at a third distance from the opening and configured to collect emission particles released from the opening.

6. Emission recovery system, according to claim 5, CHARACTERIZED in that it further comprises a hood assembly on the third vent and configured to direct emission particles released from at least the opening towards the third vent.

7. Emission recovery system, according to claim 5, CHARACTERIZED in that the first distance and the second distance each include a lateral distance component and a vertical distance component, and the third distance includes a vertical distance component.

8. Emission recovery system, according to claim 1, CHARACTERIZED in that the first vent and the second vent are each positionable around an axis along their respective lengths.

9. Emission recovery system, according to claim 1, CHARACTERIZED in that the first vent and the second vent are each positionable along a lateral distance from the opening.

10. Emission recovery system, according to claim 1, CHARACTERIZED in that the first vent and the second vent are each positionable along a vertical distance from the opening. Petition 870260046198, dated 05 / 15 / 2026, pp. 80 / 111 3 / 7 11. Emission recovery system, according to claim 1, CHARACTERIZED in that the first vent and the second vent each include a housing and a front plate coupled to the housing, wherein the front plate includes a plurality of openings configured for emission particles released from the opening to pass through thereto.

12. Emission recovery system, according to claim 10, CHARACTERIZED in that the first vent and the second vent each include a closure assembly configured to selectively modify the size of the openings of the first vent and the second vent, respectively.

13. Emission recovery system, according to claim 1, CHARACTERIZED in that it further comprises a check valve coupled to the duct and configured to limit an airflow within the duct from the second end region to the first end region.

14. Emission recovery system, according to claim 1, CHARACTERIZED in that it further comprises a lightning arrester coupled to the duct between the first end region and the second end region and configured to extinguish embers inside the duct.

15. Emission recovery system, according to claim 1, CHARACTERIZED in that it further comprises a temperature control valve coupled to the duct between the first end region and the second end region and configured to allow air from outside the duct to enter the duct to reduce the temperature therein.

16. Emissions recovery system, according to claim 1, CHARACTERIZED in that it comprises: An induced traction fan coupled to the duct and configured to apply pressure within the duct; Petition 870260046198, dated 05 / 15 / 2026, page 81 / 111 4 / 7 a diverter coupled to the second end region of the duct and configured to divert totally or partially the pressure applied by the induced traction fan between the first vent and the second vent; a first hood assembly positioned to at least partially enclose the first vent;and a second set of hoods spaced from the first hood and positioned to at least partially enclose the second vent, wherein the first vent is configured to be positioned over a loading end of a loading piston, wherein the second vent is configured to be positioned over a loading end of a pusher piston spaced laterally from the loading piston, wherein, when the loading piston is in operation, the diverter is configured to divert pressure primarily to the first vent, and wherein, when the pusher piston is in operation, the diverter is configured to divert pressure primarily to the second vent.

17. Emission recovery system for use in an industrial facility, CHARACTERIZED in that it comprises: a base duct portion having a first end region fluidly coupled to a bag chamber and a second end region opposite the first end region, wherein the base duct portion is configured to operate under a vacuum; a vent having a first end region and a second end region opposite the first end region, wherein the vent is positionable at an opening and configured to collect emission particles released at the opening; a first duct branch extending from the second end region of Petition 870260046198, dated 05 / 15 / 2026, p.82 / 111 5 / 7 end of the base duct portion to the first vent end region; and a second duct branch extending from the second end region of the base duct portion to the second vent end region.

18. Emission recovery system, according to claim 17, CHARACTERIZED in that: the vent is a first vent and the emission recovery system further comprises a second vent having a first end region and a second end region opposite the first end region; wherein the second vent is positionable at the opening and configured to collect emission particles released at the opening; wherein the first duct branch extends further from the second end region of the base duct portion to the first end region of the second vent; and wherein the second duct branch extends further from the second end region of the base duct portion to the second end region of the second vent.

19. Emission recovery system, according to claim 17, CHARACTERIZED in that the first pipeline branch and the second pipeline branch each include a first sub-branch and a second sub-branch.

20. Emission recovery system, according to claim 19, CHARACTERIZED in that the first sub-branch of the first duct branch is fluidly coupled to the first end region of the first vent and the first sub-branch of the second duct branch is fluidly coupled to the second end region of the first vent.

21. Emission recovery system, according to claim 19, CHARACTERIZED in that the second sub-branch of the first duct branch is fluidly coupled to the first end region of the second vent and the second sub-branch of the second duct branch is fluidly coupled to the second end region of the second vent.

22. Coking system, CHARACTERIZED in that it comprises: a coking oven including a loading door on one loading side of the oven; and an emissions recovery system, including: a duct fluidly coupled to a bag chamber and an induced draft fan, the duct having a first duct branch and a second duct branch; a first vent at a first distance from the loading door; and a second vent at a second distance from the loading door, wherein each of the first vent and the second vent includes a first end fluidly coupled to the first duct branch and a second end fluidly coupled to the second duct branch.

23. Coking system according to claim 22, CHARACTERIZED in that the emissions recovery system further includes a third vent at a third distance from the loading port, wherein the third vent includes a first end fluidly coupled to the first duct branch and a second end fluidly coupled to the second duct branch.

24. Coke system, according to claim 22, CHARACTERIZED in that the induced draft fan is configured to establish a variable vacuum pressure within the duct.

25. Coking system according to claim 22, CHARACTERIZED in that the induced draft fan is configured to apply pressure within the duct and in that the emissions recovery system further includes: a third vent at a third distance from the loading port; and a diverter coupled to the duct and configured to divert primarily the pressure applied by the induced draft fan to (i) the first vent and the second vent or (ii) the third vent based on a coking system operating mode. Petition 870260046198, dated 05 / 15 / 2026, pp. 85 / 111

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