Supported riser arrangement

Abstract

A supported riser apparatus can be at least partially contained within a vessel. The supported riser apparatus can include a riser comprising a non-vertical riser segment, a non-linear riser segment, and a vertical riser segment. The supported riser apparatus can further include a support member comprising a proximal end and a distal end. The proximal end of the support member can be connected to the non-vertical riser segment, and an angle between the support member and the non-vertical riser segment can be from 15 to 75. The supported riser apparatus can include a support structure connected to the riser and the support member and an expansion guide connected to an interior surface of the vessel. The expansion guide can be shaped and positioned such that the support member slides across the expansion guide when the support member is subjected to thermal expansion or thermal contraction.

Description

[0001] Cross-references to related applications

[0002] This application claims the benefit and priority of U.S. Application 63 / 126,080, filed December 16, 2020, entitled “Supported Riser Apparatuses,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The embodiments described herein generally relate to chemical processing, and more specifically to apparatus for chemical processing. Background Technology

[0004] Many chemicals provide raw materials for the formation of basic materials. For example, light olefins can be used as base materials for the production of many types of products and materials, with ethylene being used to manufacture polyethylene, vinyl chloride, or ethylene oxide. These products are used in product packaging, construction, textiles, and more. Therefore, light olefins, such as ethylene, propylene, and butene, are industrially needed. Some chemicals, such as light olefins, can be produced through reaction processes using riser reactors. The riser can be used for the reaction itself, as well as for the regeneration of the catalyst used in the process. Summary of the Invention

[0005] In some embodiments (such as those described herein), non-vertical risers can be used. For example, portions of such non-vertical risers may be diagonally oriented. However, complexities can arise in the design of chemical processing systems utilizing such risers. For instance, the designs in many embodiments should be able to account for the thermal expansion and contraction of various system units during light olefin production. Additionally, as reactors become larger and heavier, designing mechanical support systems for reactor systems becomes cumbersome. As identified in this disclosure, non-vertical risers, which expand under thermal conditions, introduce significant horizontal expansion of the riser, whereas many conventional risers are strictly vertically oriented and expand only vertically.

[0006] Currently disclosed support systems (such as the supported riser disclosed herein) address these problems in some or all of them. In one or more embodiments, the riser can be supported within the vessel by support members, support structures, and expansion guides. The supported riser apparatus according to one or more embodiments disclosed herein allows for the secure positioning of a proportionally enlarged riser within the vessel by providing sufficient mechanical support. Furthermore, the structure of the supported riser apparatus allows for support of the riser even when it undergoes thermal expansion during exposure to high temperatures, such as during the production of light olefins via dehydrogenation. The embodiments disclosed herein utilize support members that can "slide" horizontally when expanded by heating and subsequent cooling. Such supported risers can be used in reactor systems including reactors and catalyst regenerators, as well as other applications.

[0007] According to one or more embodiments disclosed herein, a supported riser assembly can be at least partially housed within a container. The supported riser assembly may include a riser comprising a non-vertical riser segment, a non-linear riser segment, and a vertical riser segment. The non-linear riser segment may connect the non-vertical riser segment and the vertical riser segment. The non-vertical riser segment may enter the container through a riser port. The supported riser assembly may also include a support member comprising a proximal end and a distal end. The proximal end of the support member may connect to a non-vertical riser segment at a riser attachment point. The riser attachment point may be adjacent to the riser port. The support member may extend substantially horizontally across the width of the container from the riser attachment point. The angle between the support member and the non-vertical riser segment may be from 15° to 75°. The supported riser assembly may also include a support structure connected to the riser and the support member. The support structure may be connected to the riser between the riser attachment point and the vertical riser segment. The support structure can be connected to the support member between the proximal and distal ends. The supported riser assembly may also include an expansion guide connected to the internal surface of the container. The expansion guide can be shaped and positioned such that the support member slides across the expansion guide when subjected to thermal expansion or contraction.

[0008] It should be understood that both the foregoing summary and the following detailed description present embodiments of the present technology and are intended to provide an overview or framework for understanding the nature and features of the claimed technology. Drawings are included to provide further understanding of the technology, and these drawings are incorporated in and form part of this specification. The drawings illustrate various embodiments and, together with the description, serve to explain the principles and operation of the technology. Furthermore, the drawings and description are intended to be illustrative only and are not intended to limit the scope of the claims in any way.

[0009] Additional features and advantages of the technology disclosed herein will be set forth in the detailed description below, and will be partly apparent from the description or recognized by practice of the technology described herein (including the detailed description below, the claims and the drawings). Attached Figure Description

[0010] The following detailed description of specific embodiments of this disclosure is best understood in conjunction with the following drawings, in which similar reference numerals indicate similar structures and in the drawings:

[0011] Figure 1 A reactor system according to one or more embodiments disclosed herein is schematically depicted;

[0012] Figure 2 A supported riser assembly according to one or more embodiments disclosed herein is schematically depicted;

[0013] Figure 3 A supported riser assembly according to one or more embodiments disclosed herein is schematically depicted;

[0014] Figure 4 A top view schematically depicting a support structure according to one or more embodiments disclosed herein; and

[0015] Figure 5 A supported riser assembly according to one or more embodiments disclosed herein is schematically depicted.

[0016] It should be understood that the accompanying drawings are schematic in nature and do not include some components commonly used in fluidized catalytic reactor systems in the art, such as, but not limited to, temperature transmitters, pressure transmitters, flow meters, pumps, valves, etc. These components are well known to be within the spirit and scope of the disclosed embodiments. However, operating components (such as those described in this disclosure) may be added to the embodiments described in this disclosure.

[0017] Reference will now be made in more detail to various embodiments, some of which are shown in the accompanying drawings. Where possible, the same reference numerals will be used throughout the drawings to refer to the same or similar parts. Detailed Implementation

[0018] This document describes one or more embodiments of a supported riser device. In some embodiments disclosed herein, risers are disclosed for use in reactor sections or catalyst regeneration sections of reactor systems. Such embodiments can utilize recycled solid catalysts in fluidized beds. Specific exemplary embodiments disclose risers used in dehydrogenation reaction systems designed for the formation of light olefins. However, it should be understood that the risers described herein can be used in a variety of chemical processes and systems. As those skilled in the art will understand, the techniques disclosed herein can be widely applied to the mechanical design of chemical processing systems that utilize risers, particularly risers with some non-vertical components.

[0019] As described herein, a supported riser unit can be used in a reactor system for producing light olefins from a hydrocarbon feedstock. The reactor system and method for producing light olefins will now be discussed in detail. (Refer to...) Figure 1 An exemplary reactor system 100 is schematically depicted. The reactor system 100 typically includes multiple system units, such as a reactor section 200 and a regenerator section 300. As described herein... Figure 1 As used in the context of this document, reactor section 200 generally refers to a portion of reactor system 100 in which the main process reaction takes place and particulate solids are separated from the olefin-containing product stream of the reaction. In one or more embodiments, the particulate solids may be used, meaning they are at least partially deactivated. Furthermore, as used herein, regenerator section 300 generally refers to a portion of a fluidized catalytic reactor system in which particulate solids are regenerated, for example, by combustion, and the regenerated particulate solids are separated from other process materials, such as materials previously burned on used particulate solids or gases released from supplementary fuel. Reactor section 200 generally includes a reaction vessel 250, a riser 230 including an external riser section 232 and an internal riser section 234, and a particulate solids separation section 210. Regenerator section 300 generally includes a particulate solids handling vessel 350, a riser 330 including an external riser section 332 and an internal riser section 334, and a particulate solids separation section 310. Typically, the particulate solids separation section 210 can be in fluid communication with the particulate solids processing container 350, for example, via the riser 126, and the particulate solids separation section 310 can be in fluid communication with the reaction container 250, for example, via the riser 124 and the conveying riser 130.

[0020] Typically, reactor system 100 can operate as follows: a hydrocarbon feedstock and fluidized particulate solids are fed into reaction vessel 250, and the hydrocarbon feedstock is reacted by contact with the fluidized particulate solids to produce an olefin-containing product in reaction vessel 250 of reactor section 200. The olefin-containing product and particulate solids can exit from reaction vessel 250 and reach gas / solid separator 220 in particulate solids separation section 210 via riser 230, where the particulate solids can be separated from the olefin-containing product. The particulate solids can then be conveyed from particulate solids separation section 210 to particulate solids processing vessel 350. In particulate solids processing vessel 350, the particulate solids can be regenerated by a chemical process. For example, used particulate solids can be regenerated by one or more of the following methods: oxidizing the particulate solids by contacting them with oxygen-containing gas, burning coke present on the particulate solids, and burning supplemental fuel to heat the particulate solids. The particulate solids can then exit from the particulate solids processing container 350 and reach the riser terminal device 378 via the riser 330, where the gas and particulate solids from the riser 330 are partially separated. The gas from the riser 330 and the remaining particulate solids are conveyed to the gas / solid separator 320 in the particulate solids separation section 310, where the remaining particulate solids are separated from the gas from the regeneration reaction. The particulate solids separated from the gas can be conveyed to the solid particulate collection area 380. The separated particulate solids are then conveyed from the solid particulate collection area 380 to the reaction vessel 250, where they are further utilized. Thus, the particulate solids can be circulated between the reactor section 200 and the regenerator section 300.

[0021] As described herein, portions of system units (such as reaction vessel walls, separation section walls, or riser walls) may comprise metallic materials such as carbon or stainless steel, or high-temperature alloys (such as incoloy). In addition, the walls of various system units may have portions that are attached to other portions of the same system unit or to another system unit. Sometimes, the points of attachment or connection are referred to herein as “attachment points” and may include any known adhesive medium, such as, but not limited to, solder joints, adhesives, solder, etc. It should be understood that components of the system may be “directly connected” at attachment points (such as solder joints). It should also be understood that two components that are “adjacent” to each other are in direct contact or close together, such that a relatively small intermediate portion (such as a connector or adhesive material) connects them.

[0022] Now for reference Figure 2The supported riser assembly 500 can be at least partially housed within the container 510, and the supported riser assembly 500 can include a riser 530, a support member 540, a support structure 550, and an expansion guide 560. As described herein, the container 510 can represent Figure 1 The granular solids separation section 210 or 310. However, it should be understood that... Figure 2 The implementation plan can be used to exclude Figure 1 Other systems besides the system represented.

[0023] In one or more embodiments, container 510 may be a particulate solids separation section. For example, in Figure 1 In the embodiments depicted, each or both of the particulate solids separation section 210 and the particulate solids separation section 310 can be a container, such as Figure 2 The container 510 is depicted in the figure. Therefore, the container 510 may include a housing 512, which may define an internal region 514 of the container 510. The housing 512 may include a riser port 518, a gas outlet port 516, and a particulate solids outlet port 522. The container 510 may accommodate at least a portion of the supported riser assembly 500 and the gas / solid separation device 520 within the internal region 514 of the container 510.

[0024] Generally, the “inlet port” and “outlet port” of any system unit described herein refer to an opening, hole, channel, aperture, gap, or other similar mechanical feature in the system unit. For example, an inlet port allows material to enter a particular system unit and an outlet port allows material to exit a particular system unit. Typically, an outlet port or inlet port will define an area of ​​the system unit to which a pipe, conduit, tube, hose, delivery line, or similar mechanical feature is attached, or define a part of the system unit to which another system unit is directly attached. While inlet ports and outlet ports may sometimes be described herein as functionally operable, they may have similar or identical physical characteristics, and their corresponding function in an operable system should not be construed as limiting their physical structure. Other ports (such as riser port 518) may include an opening in a given system unit to which another system unit is directly attached, such as where a riser 530 extends into the container 510 at riser port 518.

[0025] In one or more embodiments, the outer shell 512 of container 510 may define an upper segment 576, an intermediate segment 574, and a lower segment 572 of container 510. Typically, the upper segment 576 may have a substantially constant cross-sectional area, such that the variation in cross-sectional area within the upper segment 576 does not exceed 20%. In one or more embodiments, the cross-sectional area of ​​the upper segment 576 may be at least three times the maximum cross-sectional area of ​​the riser tube 530. For example, the cross-sectional area of ​​the upper segment 576 may be at least 3 times, at least 4 times, at least 5 times, at least 6 times, at least 7 times, at least 8 times, at least 9 times, at least 10 times, at least 12 times, at least 15 times, or even at least 20 times the maximum cross-sectional area of ​​the riser tube 530. In another embodiment, the maximum cross-sectional area of ​​the upper segment 576 may be 5 to 40 times the maximum cross-sectional area of ​​the riser tube 530. For example, the maximum cross-sectional area of ​​the upper segment 576 may be 5 to 40 times, 10 to 40 times, 15 to 40 times, 20 to 40 times, 25 to 40 times, 30 to 40 times, 35 to 40 times, 5 to 35 times, 5 to 30 times, 5 to 25 times, 5 to 20 times, 5 to 15 times, or even 5 to 10 times the maximum cross-sectional area of ​​the riser 530. As stated herein, unless otherwise expressly stated, "cross-sectional area" refers to the area of ​​a portion of a system unit across a cross-section in a plane substantially orthogonal to the general flow direction of the reactants and / or products.

[0026] Additionally, in one or more embodiments, the lower segment 572 of container 510 may have a substantially constant cross-sectional area, such that the cross-sectional area varies by no more than 20% within the lower segment 572. The cross-sectional area of ​​the lower segment 572 may be greater than the maximum cross-sectional area of ​​the riser 530 and less than the maximum cross-sectional area of ​​the upper segment 576. The intermediate segment 574 may be shaped as a frustum, wherein the cross-sectional area of ​​the intermediate segment 574 is not constant, and the cross-sectional area of ​​the intermediate segment 574 transitions from the cross-sectional area of ​​the upper segment 576 to the cross-sectional area of ​​the lower segment 572 over the entire intermediate segment 574.

[0027] In one or more embodiments, the supported riser assembly 500 may include a riser 530. For example, the supported riser assembly 500 may include... Figure 1 The riser 230 or riser 330. Typically, riser 530 can be used to transport reactants, products, and / or particulate solids from... Figure 1 The reaction vessel 250 or the particulate solids handling vessel 350 is used to transport the contents to the container. Figure 2The gas / solid separation device 520 is located within container 510. In one or more embodiments, the riser 530 may be generally cylindrical in shape (i.e., having a substantially circular cross-sectional shape), or alternatively may be non-cylindrical in shape, such as a prism shape having a triangular, rectangular, pentagonal, hexagonal, octagonal, elliptical, or other polygonal or curved closed shape, or combinations thereof, in cross-sectional shape. The riser typically includes a metal frame and may additionally include a fire-resistant lining or other materials for protecting the metal frame and / or controlling process conditions.

[0028] The riser 530 may include a vertical riser segment 534, a non-vertical riser segment 536, and a non-straight riser segment 535. As described herein, a "non-straight riser segment" may refer to a riser segment including bends or miter joints. The non-straight riser segment 535 may be positioned between the vertical riser segment 534 and the non-vertical riser segment 536, and may connect the vertical riser segment 534 and the non-vertical riser segment 536. In one or more embodiments, the non-vertical riser segment may extend through the riser port 518. Thus, the non-vertical riser segment 536 may be adjacent to or even directly connected to the riser port 518. The riser port 518 may be located within the housing 512 of the container 510, within the upper segment 576 or the middle segment 574 of the container 510. Figure 2 As shown, the riser 530 extends through the riser port 518 in the intermediate segment 574 of the container 510.

[0029] In one or more embodiments, the non-vertical riser segment 536 may extend diagonally through the riser port 518, wherein the diagonal direction is at an angle of 15 to 75 degrees to the vertical direction. For example, the diagonal direction may be at an angle of 15 to 75 degrees to the vertical, 20 to 75 degrees to the vertical, 25 to 75 degrees to the vertical, 30 to 75 degrees to the vertical, 35 to 75 degrees to the vertical, 40 to 75 degrees to the vertical, 45 to 75 degrees to the vertical, 50 to 75 degrees to the vertical, 55 to 75 degrees to the vertical, 60 to 75 degrees to the vertical, 65 to 75 degrees to the vertical, or 70 degrees to the vertical. Up to 75 degrees, 15 to 70 degrees from the vertical, 15 to 65 degrees from the vertical, 15 to 60 degrees from the vertical, 15 to 55 degrees from the vertical, 15 to 50 degrees from the vertical, 15 to 45 degrees from the vertical, 15 to 40 degrees from the vertical, 15 to 35 degrees from the vertical, 15 to 30 degrees from the vertical, 15 to 25 degrees from the vertical, 15 to 20 degrees from the vertical, or any combination or subcombination of these ranges.

[0030] According to one or more embodiments, in the upper section 576 of container 510, riser 530 may be in fluid communication with gas / solid separator 520. For example, a vertical riser section 534 of riser 530 may be directly connected to gas / solid separator 520. In such embodiments, an interruption may exist in the vertical riser section 534, or the vertical riser section 534 may include a sleeve to accommodate thermal expansion and contraction. Gas / solid separator 520 may be any mechanical or chemical separation device (such as a cyclone separator or multiple cyclone separators) capable of operating to separate particulate solids from a gaseous or liquid phase. Reference Figure 2 The vertical riser section 534 can be directly connected to the riser terminal device 578. In this embodiment, there may be no mechanical connection between the vertical riser section 534 and the gas / solid separation device 520.

[0031] According to one or more embodiments, the gas / solid separation device 520 may be a cyclone separation system, which may include two or more stages of cyclone separation. In embodiments where the gas / solid separation device 520 includes more than one cyclone separation stage, the first separation device into which the fluidized stream enters is referred to as the primary cyclone separator. The fluidized effluent from the primary cyclone separator may enter a secondary cyclone separator for further separation. The primary cyclone separator may include, for example, a primary cyclone separator and systems commercially available under the names VSS (available from Universal Oil Products Inc. (UOP), LD2 (available from Stone and Webster), and RS2 (available from Stone and Webster). Primary cyclone separators are described, for example, in U.S. Patents 4,579,716, 5,190,650, and 5,275,641, the entire contents of which are incorporated herein by reference. In some separation systems that utilize a primary cyclone separator as the primary cyclone separation unit, one or more additional cyclone separators (e.g., secondary and tertiary cyclone separators) are used to further separate particulate solids from the product gas. It should be understood that any primary cyclone separation unit can be used in the embodiments disclosed herein.

[0032] In one or more alternative embodiments, housing 512 may further accommodate Figure 2A riser terminal device not depicted. The riser terminal device may be located adjacent to the vertical riser segment 534. In one or more embodiments, the riser terminal device may be directly connected to the vertical riser segment 534 of the riser 530. Gas and particulate solids passing through the riser 530 may be at least partially separated by the riser terminal device. The gas and remaining particulate solids may be conveyed to a secondary separation device, a gas / solid separator 520 in container 510.

[0033] Typically, the gas / solid separation device 520 is operable to deposit the separated particulate solids into the bottom of the upper section 576 of the container 510, or into the middle section 574 or lower section 572 of the container. Separated vapors can be removed from the container 510 via a conduit connected to the gas outlet port 516 of the container 510. Additionally, particulate solids can be removed from the container 510 via a conduit connected to the particulate solids outlet port 522.

[0034] In one or more embodiments, the supported riser assembly 500 may include a support member 540. The support member 540 may include a proximal end 542 and a distal end 544. The proximal end 542 of the support member 540 may be connected to the riser 530 at an attachment point 532. In one or more embodiments, the proximal end 542 of the support member 540 may be directly connected to the riser 530 at the attachment point 532. For example, the proximal end 542 of the support member may be welded to the riser 530 at the attachment point 532. In one or more embodiments, the proximal end 542 of the support member 540 may be connected to a non-vertical riser segment 536. The attachment point 532 may be adjacent to the riser port 518. Thus, the attachment point 532 may be on the non-vertical riser segment 536, and the attachment point 532 may be closer to the riser port 518 than the non-linear riser segment 535. In one or more embodiments, the attachment point 532 may be adjacent to the lower portion of the riser port 518. Thus, attachment point 532 can be located on the portion of the non-vertical riser segment 536 oriented toward the lower segment 572 of the container 510.

[0035] Typically, the support member 540 can be of any shape that extends across the width of container 510 and supports the riser pipe 530. In one or more embodiments, the support member 540 can be a generally cylindrical shape (i.e., having a substantially circular cross-sectional shape), or alternatively, it can be a non-cylindrical shape, such as a prism shape having a triangular, rectangular, pentagonal, hexagonal, octagonal, elliptical, or other polygonal or curved closed shape, or combinations thereof, cross-sectional shape. In one or more embodiments, the cross-sectional shape of the support member 540 can be substantially the same from the proximal end 542 to the distal end 544 of the support member 540. In one or more embodiments, the support member 540 can be substantially solid. In alternative embodiments, the support member 540 can include at least one hollow region. For example, in one or more embodiments, the support member 540 can be a pipe.

[0036] In one or more embodiments, both the riser 530 and the support member 540 may be substantially cylindrical. In such embodiments, the diameter of the riser 530 may be greater than or equal to the diameter of the support member 540. In one or more embodiments, the ratio of the diameter of the riser 530 to the diameter of the support member 540 may be from 1 to 10. For example, the ratio of the diameter of the riser 530 to the diameter of the support member 540 may be from 1 to 10, from 2 to 10, from 3 to 10, from 4 to 10, from 5 to 10, from 6 to 10, from 7 to 10, from 8 to 10, from 9 to 10, from 1 to 9, from 1 to 8, from 1 to 7, from 1 to 6, from 1 to 5, from 1 to 4, from 1 to 3, from 1 to 2, or any combination or sub-combination of these ranges.

[0037] The support member 540 may extend across the width of the container 510. In one or more embodiments, the container 510 may have a substantially circular cross-section. In such embodiments, the support member 540 may extend across the diameter or chord of the container 510. Typically, the support member 540 may extend across the width of the container 510 in a substantially horizontal manner. As described herein, "substantially horizontal" means an orientation within 10°, 5°, or even 2° in the horizontal direction.

[0038] In one or more embodiments, the support member 540 and the non-vertical lifting pipe segment 536 may be positioned such that the angle 546 between the support member 540 and the non-vertical lifting pipe segment 536 may be from 15° to 75°. For example, the angle 546 between the support member 540 and the non-vertical lifting pipe segment 536 can be from 15 degrees to 75 degrees, from 20 degrees to 75 degrees, from 25 degrees to 75 degrees, from 30 degrees to 75 degrees, from 35 degrees to 75 degrees, from 40 degrees to 75 degrees, from 45 degrees to 75 degrees, from 50 degrees to 75 degrees, from 55 degrees to 75 degrees, from 60 degrees to 75 degrees, from 65 degrees to 75 degrees, from 70 degrees to 75 degrees, from 15 degrees to 70 degrees, from 15 degrees to 65 degrees, from 15 degrees to 60 degrees, from 15 degrees to 55 degrees, from 15 degrees to 50 degrees, from 15 degrees to 45 degrees, from 15 degrees to 40 degrees, from 15 degrees to 35 degrees, from 15 degrees to 30 degrees, from 15 degrees to 25 degrees, from 15 degrees to 20 degrees, or any combination or sub-combination of these ranges. In one or more implementations, it can be as follows Figure 2 The angle is measured as shown in the figure: 546.

[0039] The supported riser assembly 500 may include a support structure 550. In one or more embodiments, the support structure 550 may be connected to the riser 530 between an attachment point 532 and a vertical riser segment 534. The support structure 550 may be directly connected to the riser 530 from the attachment point 532 to the vertical riser segment 534 at a single point, at multiple points, or even continuously. Thus, the support structure 550 may be connected to a non-vertical riser segment 536, a non-linear riser segment 535, or both. The support structure 550 may also be attached to the support member 540 between its proximal end 542 and distal end 544. The support structure 550 may be directly connected to the support member 540 from its proximal end 542 to its distal end 544 at a single point, at multiple points, or even continuously. The support structure 550 may be any suitable structure for distributing the weight of the riser 530 across the support member 540.

[0040] In one or more embodiments, the support structure 550 may include a plate 580. In one or more embodiments, the plate 580 may be substantially vertically aligned such that the main surface of the plate is within 10°, 5°, or even 2° in the vertical direction. Referring now... Figure 3The plate 580 may include a first side 581 and a second side 582. The first side 581 and the second side 582 may be substantially planar. Alternatively, the first side 581 and the second side 582 may be substantially parallel. As described herein, "substantially parallel" means an orientation within 10°, 5°, or even 2° of the parallel direction. The plate 580 may also include a first edge 583. The first edge 583 may be adjacent to the support member 540. In one or more embodiments, the first edge 583 may be directly connected to the support member 540. The first edge may be connected to the support member 540 at one or more points along the support member 540, or connected to the support member at least a portion of the support member 540, or even continuously. The plate 580 may also include a second edge 584. The second edge 584 may be adjacent to the riser tube 530. In one or more embodiments, the second edge 584 of the plate 580 may be directly connected to the riser tube 530.

[0041] In one or more embodiments, the second edge 584 of the plate 580 may be adjacent to or directly connected to a non-vertical riser segment 536, a non-linear riser segment 535, or both. In an embodiment where the second edge 584 of the plate is adjacent to both the non-vertical riser segment 536 and the non-linear riser segment 535, the second edge 584 of the plate 580 may include a curved portion 585 and a straight portion 586. The curved portion 585 of the second edge 584 may be curved such that the curvature of the curved portion 585 of the second edge 584 may be substantially the same as the curvature of the non-linear riser segment 535. Thus, the curved portion 585 of the second edge 584 of the plate 580 may be adjacent to or directly connected to the non-linear riser segment 535. The curved portion 585 of the second edge 584 of plate 580 may be connected to the non-linear riser segment 535 at one or more points along the non-linear riser segment 535, or connected to the non-linear riser segment 535 along at least a portion of the non-linear riser segment 535, or even continuously. Furthermore, the straight portion 586 of plate 580 may be adjacent to or directly connected to the non-vertical riser segment 536. The straight portion 586 of plate 580 may be connected to the non-vertical riser segment 536 at one or more points along the non-vertical riser segment 536, or connected to the non-vertical riser segment 536 along at least a portion of the non-vertical riser segment 536, or even continuously.

[0042] like Figure 3 and Figure 4As depicted herein, the support structure 550 including plate 580 may further include one or more planar supports. Each support 590 may include a first side 591 and a second side 592. The first side 591 and the second side 592 of each support 590 may be substantially planar. Additionally, the first side 591 and the second side 592 of each support 590 may be substantially parallel. The support 590 may also include a first edge 593. The first edge 593 of each support 590 may be directly connected to the first side 581 or the second side 582 of plate 580. In one or more embodiments, the support 590 may be connected to the first side 581 or the second side 582 of plate 580 such that the support 590 extends substantially perpendicularly from the first side 581 or the second side 582 of plate 580. As described herein, "substantially perpendicular" means an orientation within 10°, 5°, or even 2° in the vertical direction.

[0043] As described herein, each support 590 may have a thickness, wherein the thickness of each support spans the distance between a first side 591 and a second side 592 (the main surface of the support 590). Similarly, a plate 580 may have a thickness, wherein the thickness of the plate 580 spans the distance between a first side 581 and a second side 582 (the main surface of the plate 580). According to one or more embodiments, the ratio of the thickness of the plate 580 to the thickness of each support 590 may be from 5:1 to 1:5. For example, the ratio of the thickness of plate 580 to the thickness of each support 590 can be from 5:1 to 1:5, from 4:1 to 1:5, from 3:1 to 1:5, from 2:1 to 1:5, from 1:1 to 1:5, from 1:2 to 1:5, from 1:3 to 1:5, from 1:4 to 1:5, from 5:1 to 1:4, from 5:1 to 1:3, from 5:1 to 1:2, from 5:1 to 1:1, from 5:1 to 2:1, from 5:1 to 3:1, from 5:1 to 4:1, or any combination or sub-combination of these ranges. In one or more preferred embodiments, plate 580 and support 590 can have the same thickness, such that the ratio of the thickness of plate 580 to the thickness of each support 590 is 1:1.

[0044] like Figure 3As shown, at least one of the supports 590 can be oriented substantially vertically. As described herein, "substantially vertical" means an orientation within 10°, 5°, or even 2° in the vertical direction. In one or more embodiments, at least one support 590 may also include a second edge 594 adjacent to a support member 540. The second edge 594 may be dimensioned to accommodate the support member 540. For example, in an embodiment where the support member 540 is cylindrical, the second edge 594 of the support 590 may be curved such that the curvature of the second edge 594 of the support 590 is substantially the same as the curvature of the support member 540. Thus, the second edge 594 of at least one support 590 can be directly connected to the support member 540.

[0045] In one or more embodiments, at least one support 590 may further include a third edge 595 adjacent to the lift tube 530. The third edge 595 of at least one support 590 may be adjacent to a non-vertical lift tube segment 536 or a non-linear lift tube segment 535. In embodiments where the lift tube 530 is substantially cylindrical, the third edge 595 of at least one support 590 may be curved such that the curvature of the third edge 595 of at least one support 590 is substantially the same as the curvature of the non-vertical lift tube segment 536 or the non-linear lift tube segment 535. Thus, the third edge 595 of at least one support 590 can be directly connected to the non-vertical lift tube segment 536 or the non-linear lift tube segment 535.

[0046] Still referencing Figure 3 and Figure 4 The support structure 550 may include one or more supports 597 that are substantially horizontally oriented. As described herein, "substantially horizontal" means an orientation within 10°, 5°, or even 2° in the horizontal direction. Such horizontally oriented supports 597 may be adjacent to one or more supports 590 that are substantially vertically oriented. In one or more embodiments, the horizontally oriented supports 597 may include a second edge 598 and a third edge 599, wherein the second edge 598 or the third edge 599 may be adjacent to a first side 591 or a second side 592 of the vertically oriented supports 590. In one or more embodiments, the second edge 598 or the third edge 599 of the horizontally oriented supports 597 may be directly connected to the first side 591 or the second side 592 of the vertically oriented supports 590. In one or more embodiments, the second edge 598 of the horizontally oriented bracket 597 may be adjacent to or directly connected to the first side 591 of the vertically oriented bracket 590, and the third edge 599 of the horizontally oriented bracket 597 may be adjacent to or directly connected to the second side 592 of the second vertically oriented bracket 590.

[0047] In one or more embodiments, the bracket 590 may extend from both the first side 581 and the second side 582 of the plate 580. For example... Figure 4 As depicted, the bracket 590 may extend symmetrically from the first side 581 and the second side 582 of the plate 580. Alternatively, the bracket 590 may extend asymmetrically from the first side 581 and the second side 582 of the plate 580.

[0048] As described herein, the bracket 590 may include a fourth edge 596. The fourth edge 596 of the bracket 590 may be an air-side edge, wherein the fourth edge 596 of the bracket 590 is not attached to another system unit. Typically, the fourth edge of the bracket 590 may be substantially parallel to the first edge 593 of the bracket 590. As described herein, each bracket 590 may have a width, wherein the width is the distance from the first edge 593 of the bracket to the fourth edge 596 of the bracket 590. In one or more embodiments, the ratio of the width of the bracket 590 to the thickness of the bracket 590 may be from 50 to 5. For example, the ratio of the width of the support 590 to the thickness of the support 590 can be from 50 to 5, from 45 to 5, from 40 to 5, from 35 to 5, from 30 to 5, from 25 to 5, from 20 to 5, from 15 to 5, from 10 to 5, from 50 to 10, from 50 to 15, from 50 to 20, from 50 to 25, from 50 to 30, from 50 to 35, from 50 to 40, from 50 to 45, or any combination or sub-combination of these ranges.

[0049] In one or more embodiments, the supported riser assembly 500 may include an expansion guide 560. The expansion guide 560 may include a proximal end 561 and a distal end 562. The proximal end 561 of the expansion guide 560 may be connected to an inner surface of the outer shell 512 of the container 510. In one or more embodiments, the expansion guide 560 may be directly connected to the inner surface of the outer shell 512 of the container 510. The expansion guide 560 may be positioned on the inner surface of the outer shell 512 such that the support member 540 slides across the expansion guide 560 when subjected to thermal expansion and contraction. In one or more embodiments, the proximal end 561 of the expansion guide 560 may be connected to the inner surface of the outer shell 512 of the container 510 opposite the riser port 518. In one or more embodiments, the proximal end 561 of the expansion guide 560 may be connected across the width of the container 510 to the inner surface of the outer shell 512 of the container 510 opposite the riser port 518. In an embodiment where the container 510 is substantially cylindrical, the proximal end 561 of the expansion guide 560 may be connected to the inner surface of the outer shell 512 of the container 510 along the chord or diameter of the container 510.

[0050] The distal end 562 of the expansion guide 560 may be sized to receive the distal end 544 of the support member 540. In one or more embodiments, the expansion guide 560 may be slotted, such that the distal end 544 of the support member 540 can slide along the slotted expansion guide 560 and the slotted expansion guide 560 prevents lateral movement of the support member 540. In one or more alternative embodiments, the expansion guide 560 may be formed as a sleeve, such that lateral and vertical movement of the support member 540 is restricted. In such embodiments, the proximal end 561 of the expansion guide 560 may be closed, and the distal end 562 of the expansion guide 560 may be open. Figure 3 As shown, the cross-sectional shape of the distal end 562 of the sleeve-shaped expansion guide 560 can be substantially the same as the cross-sectional shape of the distal end 544 of the support member 540, and the cross-section of the expansion guide 560 can be substantially constant from the distal end 562 to the proximal end 561. For example, the expansion guide 560 can have a substantially circular cross-section from the distal end 562 to the proximal end 561. Alternatively, the cross-section of the expansion guide 560 can be non-circular, having a triangular, rectangular, pentagonal, hexagonal, octagonal, elliptical, or other polygonal or curved closed shape, or a combination thereof.

[0051] During operation, the various components of the supported riser assembly 500 contract when in a relatively cold state and expand when in a relatively hot state. Thus, the support member 540 can elongate substantially horizontally at a warmer temperature compared to the cooler temperature. During heating, the support member 540 can slide into the recess of the expansion guide 560 during thermal expansion. During cooling, the support member 540 can slide out of the recess of the expansion guide 560. However, the dimensions of the expansion guide 560 are determined such that it can support the support member 540 even at low temperatures when the support member 540 is in a contracted state. Therefore, the support member 540 is held within the expansion guide 560 under all thermal conditions, but is allowed to slide during expansion and contraction. When cooling, the void space within the expansion guide can be filled with ceramic wool to minimize catalyst ingress.

[0052] Now for reference Figure 5The supported riser assembly 500 may also include a riser support cone 517 positioned in a riser port 518. The riser support cone 517 may be attached to the riser port 518. The riser support cone 517 may be attached to a non-vertical riser segment 536. In one or more embodiments, the riser support cone 517 may be attached to the non-vertical riser segment 536 around its circumference. The riser support cone 517 may be operable to at least partially support the riser 530 at the riser port 518. The riser support cone 517 may have a tip 519. In one or more embodiments, the tip 519 of the riser support cone 517 adjacent to the riser attachment point 532 of the support member 540 may be at height H, and the bottom end 541 of the support member 540 may be at height H. In other words, the top 519 of the support cone 517 at the bottommost point of the riser port 518 can have the same height as the bottom 541 of the support member 540. In one or more embodiments, the bottom 541 of the support member 540 can contact the expansion guide 560 at height H. In such embodiments, the non-vertical riser segment 536 can be supported at the same height by the riser support cone 517 and the support member 540. In one or more embodiments, the riser 530 can be supported at the same height (height H) of the chord or diameter of the intermediate segment 574 across the container 510.

[0053] In one or more embodiments, the supported riser assembly 500 can be used in systems that include riser terminal assemblies. The riser terminal assemblies may be heavy and typically rely on the riser for support. Without being bound by theory, it is believed that the supported riser assembly 500 described herein can provide sufficient support for the riser terminal assemblies, even when the supported riser assembly 500 includes non-vertical riser segments and the riser 530 can experience thermal expansion in a non-vertical direction, and the riser terminal assemblies are not independently supported. Therefore, it is believed that the supported riser assembly 500 can be used in a variety of systems that utilize riser terminal assemblies. For example, such systems may include catalyst regeneration systems, such as regenerator section 300. However, it should be noted that the supported riser assembly 500 described herein is not limited to use in catalyst regeneration systems or is limited to use in systems that include riser terminal assemblies.

[0054] In a first aspect of this disclosure, a supported riser assembly can be at least partially housed within a container. The supported riser assembly may include a riser comprising a non-vertical riser segment, a non-linear riser segment, and a vertical riser segment. The non-linear riser segment may connect the non-vertical riser segment and the vertical riser segment. The non-vertical riser segment may enter the container through a riser port. The supported riser assembly may also include a support member comprising a proximal end and a distal end. The proximal end of the support member may connect to a non-vertical riser segment at a riser attachment point. The riser attachment point may be adjacent to the riser port. The support member may extend substantially horizontally across the width of the container from the riser attachment point. The angle between the support member and the non-vertical riser segment may be from 15° to 75°. The supported riser assembly may also include a support structure connected to the riser and the support member. The support structure may be connected to the riser between the riser attachment point and the vertical riser segment. The support structure can be connected to the support member between the proximal and distal ends. The supported riser assembly may also include an expansion guide connected to the internal surface of the container. The expansion guide can be shaped and positioned such that the support member slides across the expansion guide when subjected to thermal expansion or contraction.

[0055] The second aspect of this disclosure may include the first aspect, wherein the support structure includes substantially vertically aligned plates, the plates including a first edge connected to a support member and a second edge connected to a lifting tube.

[0056] A third aspect of this disclosure may include the second aspect, wherein the second edge of the plate includes a curved portion and a straight portion, wherein the curved portion of the second edge of the plate is connected to a non-straight lift pipe segment, and wherein the straight portion of the second edge of the plate is connected to a non-vertical lift pipe segment.

[0057] The fourth aspect of this disclosure may include either the second or the third aspect, wherein the support structure further includes one or more planar supports, wherein the supports extend perpendicularly from a first side and a second side of the plate, and wherein each support is connected to the first side or the second side of the plate.

[0058] The fifth aspect of this disclosure may include the fourth aspect, wherein at least one support is vertically oriented.

[0059] The sixth aspect of this disclosure may include either the fourth or fifth aspect, wherein at least one bracket is connected to the support member.

[0060] The seventh aspect of this disclosure may include any one of the fourth to sixth aspects, wherein at least one support is connected to the lifting tube.

[0061] The eighth aspect of this disclosure may include any one of the fourth to seventh aspects, wherein at least one support is horizontally oriented, and wherein at least one horizontally oriented support is connected to at least one vertically oriented support.

[0062] The ninth aspect of this disclosure may include any one of the fourth to eighth aspects, wherein the support extends symmetrically from the first side and the second side of the plate.

[0063] The tenth aspect of this disclosure may include any one of the fourth to ninth aspects, wherein each support includes a thickness spanning the distance between the main surfaces of the support, wherein the plate includes a thickness spanning the distance between the main surfaces of the plate, and wherein the ratio of the thickness of the plate to the thickness of each support is from 5:1 to 1:5.

[0064] The eleventh aspect of this disclosure may include any one of the fourth to tenth aspects, wherein each support includes a thickness spanning the distance between the main surfaces of the support, wherein each support includes a width spanning the distance the support extends from the plate, and wherein the ratio of the width of each support to the thickness of each support is from 50 to 5.

[0065] The twelfth aspect of this disclosure may include any one of the first to eleventh aspects, wherein the cross-sectional area of ​​the upper segment of the container is at least three times the maximum cross-sectional area of ​​the riser.

[0066] The thirteenth aspect of this disclosure may include any one of the first to twelfth aspects, wherein the riser enters the container through a riser port, and wherein the riser port is located in the upper or middle section of the container.

[0067] The fourteenth aspect of this disclosure may include any one of the first to thirteenth aspects, wherein the cross-sectional shape of the support member is substantially constant from the proximal end to the distal end.

[0068] The fifteenth aspect of this disclosure may include any one of the first to fourteenth aspects, wherein the lift tube enters the container through the lift tube port in a diagonal direction, wherein the diagonal direction is at an angle of 15 to 75 degrees with the vertical direction.

[0069] The sixteenth aspect of this disclosure may include any one of the first to fifteenth aspects, wherein a riser support cone is attached to a riser port and a non-vertical riser segment, wherein the riser support cone has a apex, and wherein the apex of the riser support cone adjacent to the riser attachment point of the support member is at a height H, and the bottom end of the support member is at a height H.

[0070] The subject matter of this disclosure has been described in detail and with reference to specific embodiments. It should be understood that any detailed description of a component or feature of an embodiment does not necessarily imply that such component or feature is necessary for a particular embodiment or any other embodiment. Furthermore, it will be apparent to those skilled in the art that various modifications and changes can be made to the described embodiments without departing from the spirit and scope of the claimed subject matter.

[0071] For purposes of description and limitation of this disclosure, it should be noted that the terms “about” or “approximately” are used in this disclosure to indicate the degree of uncertainty attributable to any quantitative comparison, value, measurement or other representation. The terms “about” and / or “approximately” are also used in this disclosure to indicate the degree to which a quantitative representation may vary from a specified reference without causing a fundamental change in the subject matter of interest.

[0072] It should be noted that one or more of the appended claims utilize the term "wherein" as a transitional expression. For the purpose of defining this technology, it should be noted that this term is introduced in the claims as an open-ended transitional phrase used to introduce a description of a series of features of the structure, and should be interpreted in a manner similar to the more commonly used open-ended prepositional term "comprising." Furthermore, it should be understood that when a first component is described as "comprising" a second component, it is contemplated that in some embodiments, the first component is "composed of" or "substantially composed of" the second component.

[0073] It should be understood that any two quantitative values ​​assigned to a certain characteristic can constitute a range of that characteristic, and all combinations of ranges formed by all said quantitative values ​​of a given characteristic are considered in this disclosure.

Claims

1. A supported riser assembly at least partially housed within a container, the supported riser assembly comprising: The lifting pipe includes a non-vertical lifting pipe segment, a non-straight lifting pipe segment, and a vertical lifting pipe segment, wherein the non-straight lifting pipe segment connects the non-vertical lifting pipe segment and the vertical lifting pipe segment, and wherein the non-vertical lifting pipe segment enters the container through the lifting pipe port; A support member, the support member including a proximal end and a distal end, wherein the proximal end of the support member is connected to the non-vertical riser segment at a riser attachment point, wherein the riser attachment point is adjacent to the riser port, wherein the support member extends substantially horizontally from the riser attachment point across the width of the container, and wherein the angle between the support member and the non-vertical riser segment is from 15° to 75°. A support structure is connected to the lifting pipe and the support member, wherein the support structure is connected to the lifting pipe between the lifting pipe attachment point and the vertical lifting pipe segment, and wherein the support structure is connected to the support member between the proximal end and the distal end; as well as An expansion guide is attached to the inner surface of the container, wherein the expansion guide is shaped and positioned such that the support member slides across the expansion guide when the support member undergoes thermal expansion or contraction.

2. The support-type lifting pipe device according to claim 1, wherein the support structure comprises substantially vertically aligned plates, the plates including a first edge connected to the support member and a second edge connected to the lifting pipe.

3. The support-type lifting pipe device according to claim 2, wherein the second edge of the plate includes a curved portion and a straight portion, wherein the curved portion of the second edge of the plate is connected to the non-straight lifting pipe segment, and wherein the straight portion of the second edge of the plate is connected to the non-vertical lifting pipe segment.

4. The support-type lifting pipe device according to claim 2 or claim 3, wherein the support structure further comprises one or more planar supports, wherein the supports extend perpendicularly from a first side and a second side of the plate, and wherein each support is connected to the first side or the second side of the plate.

5. The support-type lifting pipe device according to claim 4, wherein at least one support is vertically oriented.

6. The support-type lifting pipe device according to claim 4, wherein at least one bracket is connected to the support member, or wherein at least one bracket is connected to the lifting pipe.

7. The support-type lifting pipe device according to claim 4, wherein at least one support is horizontally oriented, and wherein the at least one horizontally oriented support is connected to at least one vertically oriented support.

8. The support-type lifting pipe device according to claim 4, wherein the support extends symmetrically from the first side and the second side of the plate.

9. The support-type lifting tube device of claim 4, wherein each support includes a thickness spanning the distance between the main surfaces of the support, wherein the plate includes a thickness spanning the distance between the main surfaces of the plate, and wherein the ratio of the thickness of the plate to the thickness of each support is from 5:1 to 1:

5.

10. The support-type lifting tube device of claim 4, wherein each support includes a thickness spanning a distance between the main surfaces of the support, wherein each support includes a width spanning a distance extending from the plate, and wherein the ratio of the width of each support to the thickness of each support is from 50 to 5.

11. The supported riser device according to claim 2 or 3, wherein the cross-sectional area of ​​the upper section of the container is at least three times the maximum cross-sectional area of ​​the riser.

12. The support-type lifting tube device according to claim 2 or 3, wherein the lifting tube enters the container through the lifting tube port, and wherein the lifting tube port is located in the upper or middle section of the container.

13. The supported riser device according to claim 2 or 3, wherein the cross-sectional shape of the supporting member is substantially constant from the proximal end to the distal end.

14. The support-type lifting pipe device according to claim 2 or 3, wherein the lifting pipe enters the container through the lifting pipe port in a diagonal direction, wherein the diagonal direction is at an angle of 15 degrees to 75 degrees with the vertical direction.

15. The support-type lifting pipe device according to claim 2 or 3, wherein a lifting pipe support cone is attached to the lifting pipe port and the non-vertical lifting pipe segment, wherein the lifting pipe support cone has a apex, and wherein the apex of the lifting pipe support cone adjacent to the lifting pipe attachment point of the support member is at a height H, and the bottom end of the support member is at the height H.

Images