108 results about "Fluid catalytic cracking" patented technology

Processes and facilities for producing a recycled content organic chemical compound directly or indirectly from waste plastic. Processing schemes are described herein for converting waste plastic (or hydrocarbon having recycled content derived from waste plastic) into useful intermediate chemicals and final products. The waste plastic can be liquified before being introduced to downstream processing. In some aspects, recycled content aromatics (r-aromatics) can be processed to provide recycled content paraxylene (r-paraxylene), which can then be used to provide recycled content terephthalic acid (r-TPA) and / or recycled content polyethylene terephthalate (r-PET).

Provided is a fluid catalytic cracking catalyst including faujasite-type zeolite, boehmite, a binder, and clay minerals, and satisfying the following formulas (1) and (2) in powder X-ray diffraction analysis:A / B≤1.2(1)A / C≥0.8(2)in the formulas (1) and (2), A is an integrated intensity of a diffraction peak attributed to (020) plane of the boehmite, B is an integrated intensity of a diffraction peak attributed to (120) plane of the boehmite, and C is an integrated intensity of a diffraction peak attributed to (331) plane of the faujasite-type zeolite.

A catalyst for fluid catalytic cracking is provided which contains faujasite-type zeolite, boehmite, a binder and clay minerals and which satisfies the following formulas (1) and (2) in powder X-ray diffraction analysis: A / B ≤ 1 .2 A / C ≤ 0.8 where in formulas (1) and (2), A is the integrated intensity of a diffraction peak assigned to the (020) plane of boehmite, B is the integrated intensity of a diffraction peak assigned to the (120) plane of boehmite, and C is the integrated intensity of a diffraction peak assigned to the (33 1) plane of the faujasite-type zeolite.

A catalyst composition and method for treating a feed including oxygen is provided. The catalyst composition includes a zeolite and a coprocessing material including an oxide of at least one of magnesium (Mg), vanadium (V), and cerium (Ce).

The present invention relates to a process for producing olefins and aromatics from a hydrocarbon feedstock comprising crude oil, the process comprising the following steps: a) an atmospheric distillation step; b) a fluid catalytic cracking step; c) a fixed bed hydrocracking step; d) a steam cracking step; e) a catalytic reforming step; f) an aromatics transformation and / or separation step; g) a one-step oligomerization and catalytic cracking step. Figure 1 to be published

The invention provides a fluidized catalytic cracking catalyst with high rare earth content, a preparation method and application of the fluidized catalytic cracking catalyst in a high-iron vanadium-nickel feed catalytic cracking process, the preparation method comprises the following steps: step 1, mixing and stirring clay, pseudo-boehmite, cerium chloride, alumina sol, silica sol and water to obtain a first mixed solution; step 2, adding a P modified USY molecular sieve, cerium chloride and a silicon-containing macroporous bauxite slurry into the first mixed solution in the step 1, pulping, homogenizing, forming, roasting, washing and drying to obtain the fluidized catalytic cracking catalyst with high rare earth content. At present, the conventional rare earth content in the industry is less than 3.5% and is not more than 5% at most, while the catalyst disclosed by the invention adopts the design of high rare earth content and low molecular sieve content, iron, vanadium and nickel are passivated by the high rare earth content, and the structural stability of the catalyst is guaranteed.

A fluidized catalytic cracking unit system includes: a fluidized catalytic cracking unit assembly including a first catalyst regenerator and a cracking unit, the cracking unit configured to output spent catalyst to the first catalyst regenerator; and a reformer-electrolyzer-purifier assembly comprising a reformer-electrolyzer-purifier cell, the reformer-electrolyzer-purifier cell comprising an anode section and a cathode section.

The invention relates to the cross technical field of computer data processing technology and chemical engineering, in particular to a chemical equipment fault detection data analysis system. Comprising a data feature unit used for providing input for accurate quantification of a system state; the state fusion unit is used for receiving the feature vector and performing time sequence modeling on the strong coupling characteristic of the system by using a graph attention network so as to output a coupling state vector which can quantify the health state of the current system and predict the future evolution trend; the economic decision unit is used for formulating an optimal catalyst emission strategy capable of maximizing global economic benefits and outputting an optimal target emission rate; and the optimization execution unit is used for generating and issuing a group of underlying hardware equipment control instructions which simultaneously meet multiple constraints of safety, environmental protection and process stability so as to realize closed-loop intelligent management of catalyst inventory. According to the method, the global economic benefit of the whole fluidized catalytic cracking device is maximized, and the economic benefit of an enterprise is remarkably improved.

A process for upgrading a naphtha feed includes separating the naphtha feed into at least a light naphtha fraction, contacting the light naphtha fraction with hydrogen in the presence of at least one cyclization catalyst, and contacting the cyclization effluent with at least one cracking catalyst. Contacting the light naphtha fraction with hydrogen in the presence of at least one cyclization catalyst may produce a cyclization effluent comprising a greater concentration of naphthenes compared to the light naphtha fraction. Contacting the cyclization effluent with at least one cracking catalyst under conditions sufficient crack at least a portion of the cyclization effluent may produce a fluid catalytic cracking effluent comprising light olefins, gasoline blending components, or both. A system for upgrading a naphtha feed includes a naphtha separation unit, a cyclization unit disposed downstream of the naphtha separation unit, and a fluid catalytic cracking unit disposed downstream of the cyclization unit.

Methods for producing bio-olefins by fluidized catalytic cracking (FCC) may comprise introducing a feedstock comprising a C2-C4 bio-alcohol and a petroleum-based hydrocarbon feed into an FCC reactor containing a catalyst, wherein a concentration of the C2-C4 bio-alcohol in the feedstock is about 0.5 wt% to about 99.5 wt% and the C2-C4 bio-alcohol is introduced to a first reaction zone of the FCC reactor and the petroleum-based hydrocarbon feed is introduced to a second reaction zone of the FCC reactor, the first reaction zone being located spatially below the second reaction zone; dehydrating at least a portion of the C2-C4 bio-alcohol in the first reaction zone to produce a bio-olefin; cracking at least a portion of the petroleum-based hydrocarbon feed in the second reaction zone to produce a cracking product; and obtaining an FCC product comprising the bio-olefin and the cracking product.

Assemblies and methods to enhance a fluid catalytic cracking (FCC) process associated with a refining operation, during the FCC process, may include supplying a hydrocarbon feedstock to first processing units associated with the refining operation. The assemblies and methods also may include conditioning a hydrocarbon feedstock and unit material samples, and analyzing the samples via one or more spectroscopic analyzers. The assemblies and methods further may include prescriptively controlling, via one or more FCC process controllers, based at least in part on the hydrocarbon feedstock properties and the unit material properties, the FCC processing assembly, so that the prescriptively controlling results in causing the FCC process to produce intermediate materials, the unit materials, and / or the downstream materials having properties within selected ranges of target properties, thereby to cause the FCC process to achieve material outputs that more accurately and responsively converge on one or more of the target properties.

A control system for automatic operation of a fluid catalytic cracking unit includes a reactor severity control device operable to modulate a temperature affecting volume gain within the fluid catalytic cracking unit and a controller. The controller includes a processing circuit configured to calculate the volume gain within the fluid catalytic cracking unit by comparing a volume based on one or more input oil feeds to the fluid catalytic cracking unit to a volume of one or more output oil products of the fluid catalytic cracking unit. The processing circuit is further configured to use a neural network model to generate a target severity predicted to optimize the volume gain within the fluid catalytic cracking unit. The processing circuit is further configured to operate the reactor severity control device using the target severity to modulate the temperature affecting the volume gain within the fluid catalytic cracking unit.

Systems and processes for the production of circular products, including circular olefins and circular products derived from the circular olefins, by feeding particular hydrocarbons derived from one or more feed source to steam cracking and to fluid catalytic cracking and by sending the product of steam cracking and the product of fluid catalytic cracking to an integrated separation system. The circular olefins can be used in any downstream process to produce any circular product, such as a circular product produced through polymerization, oligomerization, or hydrogenation of the circular olefins.

A catalyst regeneration method is suitable for a fluidized catalytic cracking unit has a catalytic cracking reactor and a catalyst regenerator. The regeneration method has the following steps: 1) providing a biomass-derived biomass charcoal; 2) feeding the biomass charcoal and the catalyst to be regenerated from the catalytic cracking reactor into the catalyst regenerator together or separately; 3) introducing an oxygen-containing gas into the catalyst regenerator, wherein the oxygen content of the oxygen-containing gas is 14-28% by volume; and 4) contacting the catalyst to be regenerated with the biomass charcoal and oxygen-containing gas in the catalyst regenerator for coke-burning regeneration. The method can significantly reduce carbon emissions from the catalytic cracking unit, realize the recycling of carbon elements, and provide energy for other process units.

A method of processing a crude oil feedstock may include: separating the crude oil feedstock to produce: a first feed fraction comprising hydrocarbons having a boiling point of greater than 350° C., a second feed fraction comprising hydrocarbons having a boiling point of greater than or equal to 160° C. and less than or equal to 350° C., and a third feed fraction comprising hydrocarbons having a boiling point of less than 160° C.; cracking the first feed fraction in a first downflow reaction zone of a fluid catalytic cracking (FCC) unit; cracking the second feed fraction in a second downflow reaction zone of the FCC unit; fractionating an effluent from the FCC unit to produce an FCC mixed C4 stream; and processing the third feed fraction and saturated C4 hydrocarbons from the FCC mixed C4 stream in a cracking unit to produce light olefins.

The present technology provides a fluid catalytic cracking (FCC) catalyst composition that includes a Y-zeolite that includes a rare earth element or oxide thereof and an alumina matrix, wherein the alumina matrix includes y-AhCb or pseudo-boehmite and a dopant; and the dopant is selected from a Group IIIB metal, Group IVB metal, Group IV A element, Group VA element, an oxide thereof, or a combination of two or more thereof.

Disclosed herein is a catalyst for use in fluid catalytic cracking comprising a zeolite material and a matrix material. In at least one embodiment, the matrix material comprises mullite at a mullite index of about 35% or greater. In at least one embodiment, a matrix surface area is less than about 150 m2 / g.

The invention relates to a method of treating a microporous crystalline zeolite, such as a Ultrastable Zeolite Y, in particular for modifying acidic properties thereof. This method comprises successive steps of: impregnating said zeolite with a solution containing a tetraalkyl ammonium hydroxide in a liquid vehicle, drying the impregnated zeolite, and contacting the dried zeolite with water vapor at a temperature of between 100 and 200 °C. The zeolite thus obtained is particularly useful for use as a catalyst in fluid catalytic cracking processes.

Disclosed herein is a phosphorus modified UZM-35 zeolite, methods of its preparation, and methods of its use in hydrocarbon conversion processes, e.g., as part of a catalyst component and / or as part of a catalyst composition. Catalyst components with phosphorus modified UZM-35, their methods of preparation, and their methods of use suitable for petroleum refining applications (e.g., hydrocarbon conversion processes such as fluid catalytic cracking and hydrocracking) are described herein. Also disclosed herein are catalyst compositions, which include phosphorus modified UZM-35 and catalyst components thereof along with at least one additional catalyst component. Methods of preparing and methods of using such catalyst compositions are also encompassed by the instant disclosure.

A method of repurposing a fluid catalytic cracking (FCC) system originally designed for cracking vacuum gas oil (VGO) may include generating a first mixture of a renewable lipid feedstock and a particulate catalyst. The first mixture may be flowed through a riser for a sufficient time for the particulate catalyst to promote partial reaction of the renewable lipid feedstock to generate a second mixture including (i) catalyst particles to which acidic reaction intermediates are sorbed and (ii) a vapor-phase intermediate composition which is essentially acid free. The second mixture may be flowed into a reactor / stripper which is partially filled with more particulate catalyst. Within the reactor / stripper, the second mixture may be contacted with particulate catalyst for a sufficient residence time for the acidic reaction intermediates to substantially completely react to generate additional vapor-phase intermediate composition. The vapor-phase intermediate composition may be disengaged from the particulate catalyst and collected.

The present invention relates to a method for producing olefins and aromatics from a hydrocarbon feedstock comprising crude oil, the method comprising the following steps: a) an atmospheric distillation step; b) a fluid catalytic cracking step; c) a fixed-bed hydrocracking step; d) a steam cracking step; e) a catalytic reforming step; f) a step of converting and / or separating the aromatics.

Disclosed herein is a fluid catalyst cracking (FCC) catalyst composition that includes a first component and a second component. The first component includes zeolite Y and a first matrix that includes a metal passivating constituent. The second component includes beta zeolite and a second matrix. Also disclosed herein are methods of preparing the FCC catalyst composition and method of using the FCC catalyst composition.

Embodiments herein relate to a solution to maximize the recovery of ethylene, propylene, and aromatic rich naphtha from crude oil processing. These approaches involve treating an effluent from fluid catalytic cracking (FCC) and a steam cracker effluent to remove metals such as AsH3, PH3, Hg and impurities such as NOx and oxygen, between mixing them. The combined effluent is then cooled in a cold box and passed to various fractionators for separation of ethylene, propylene and aromatic rich naphtha.

Processes involving the use of a dry sorbent injection (DSI) unit or slurry reagent injection (SRI) unit to remove sulfur compounds form flue gas are described. Flue gas from an FCC regenerator, for example, is used to make superheated steam and saturated steam. The flue gas is then sent to a DSI unit to remove the sulfur compounds, and then to an economizer (or heat exchanger) to heat boiler feed water or combustion air. Because the temperature is not reduced as much as with a wet scrubber process, additional energy can be recovered in the economizer.

The invention relates to a test unit, in particular for the study of catalysts in reactions involving at least one catalyst and at least one reactant, such as fluid catalytic cracking reactions. The testing unit comprises a descending pipe, a separator, a lifting pipe and a catalyst regenerator, and optionally comprises a catalyst buffer. The conveying of the catalyst is performed by a screw conveyor.

In a fluidized catalytic cracker (FCC) unit operating in petrochemical mode, it has increased dry gas and LPG production, which creates a bottleneck in the product stream, a method is provided for completely or partially separating a light gas component from a moisture compressor suction port stream and directing it directly to an untreated fuel gas header using a system in parallel with an existing moisture compressor that includes an auxiliary compressor and a membrane separation system.

Embodiments of the present disclosure relate to a process for treating a hydrocarbon feed, comprising fractionating the hydrocarbon feed into a light stream and a heavy stream, hydrotreating the heavy stream to form a hydrotreated heavy stream, combining the light stream and the hydrotreated heavy stream to form an upgraded feed stream, and feeding the modified feed stream to a single fluid catalytic cracking (FCC) reaction zone, thereby producing a product stream comprising light olefins. The light stream may comprise hydrocarbons boiling at less than 540 DEG C, and the heavy stream may comprise hydrocarbons boiling at more than 540 DEG C. The FCC reaction zone may be operated in a flow configuration, and the FCC may be operated under high severity conditions.

A method for completely or partially separating light gas components from a wet gas compressor suction stream and sending them directly to an untreated fuel gas header using a system in parallel with the existing wet gas compressor, in a fluid catalytic cracking (FCC) unit operating in petrochemical mode where dry gas and LPG production increases and a bottleneck occurs in the product flow, wherein the parallel system includes an auxiliary compressor and a membrane separation system.

The present disclosure relates to a process for producing lighter olefins in a fluid catalytic cracking (FCC) unit. The process enhances lighter olefin production from low-value paraffinic naphtha, thereby significantly enhancing the profitability of the FCC process.

A novel process and associated equipment for effectively melting and dissolving waste plastics into petroleum feeds such as VGO are provided. The process can continuously generate a stream of blended plastic and VGO liquids that can be further treated or purified to meet fluid catalytic cracking (FCC) feedstock specifications. The entire stream can then be sent to an FCC unit to convert waste plastics into high quality gasoline fuel. The associated equipment comprises a continuous processing unit with minimum maintenance requirement.