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公开(公告)号：US20240026234A1
公开(公告)日：2024-01-25
申请号：US18225061
申请日：2023-07-21
Applicant: UOP LLC
Inventor： Sakthivelan Maadasamy Durai , Jan De Ren , Ling Zhou , Pelin Cox , Sathit Kulprathipanja
IPC: C10G51/02
CPC classification number: C10G51/026 , C10G2300/708 , C10G2400/20 , C10G2300/201 , C10G2300/703
Abstract: A process for catalytic production of olefins comprises contacting a first hydrocarbon stream and a first stream of fluid catalyst in a first riser to produce a first cracked product stream and a spent catalyst stream. The first cracked product stream is separated in a main column. An overhead stream from the main column is separated into a second hydrocarbon stream. The second hydrocarbon stream is contacted with a second stream of fluid catalyst in a second riser to produce a second cracked product stream and a first stream of cool catalyst. A third hydrocarbon stream is obtained from the overhead stream and/or from the second cracked product stream. The third hydrocarbon stream is contacted with a third stream of fluid catalyst in a third riser to produce a third cracked product stream and a second stream of cool catalyst.
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公开(公告)号：US20250073639A1
公开(公告)日：2025-03-06
申请号：US18811755
申请日：2024-08-21
Applicant: UOP LLC
Inventor： Erick J. Bennett , Shubhra J. Bhadra , Sakthivelan Maadasamy Durai , Jan de Ren , Raul Zavala
IPC: B01D53/75 , B01D53/047 , B01D53/34 , B01D53/50
Abstract: A process for separating a carbon dioxide product stream from a flue gas stream is disclosed. The process comprises passing a stream of carbon dioxide and oxygen to a regenerator to generate a catalyst stream and produce a flue gas stream comprising carbon oxides, and/or nitrogen oxides, catalyst fines, oxygen, and water. Heat is transferred to a water stream from the flue gas stream in a heat recovery unit to form a cooled flue gas stream and a steam stream. Water is removed from the cooled flue gas stream in a dehydration unit to provide a dehydrated flue gas stream. The dehydrated flue gas stream is separated into an oxygen stream and a carbon dioxide product stream.
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公开(公告)号：US20240024864A1
公开(公告)日：2024-01-25
申请号：US18144785
申请日：2023-05-08
Applicant: UOP LLC
IPC: B01J38/32 , B01J8/26 , B01J8/18 , B01J8/00 , C07C29/152
CPC classification number: B01J38/32 , B01J8/26 , B01J8/1827 , B01J8/006 , C07C29/152 , B01J2208/00274 , B01J2208/00176
Abstract: A process for regenerating catalyst from a fluidized catalytic process comprising is disclosed. The process comprises providing an oxygen stream and a preheated carbon dioxide recycle stream and mixing the oxygen stream and the preheated carbon dioxide recycle stream to provide a carbon dioxide rich oxidation stream. The carbon dioxide rich oxidation stream is passed to a regenerator unit to provide a carbon dioxide rich flue gas stream. One or more of a sulfur-containing compound, a nitrogen-containing compound, or both in the carbon dioxide rich flue gas stream is reacted with a reactant in a decontamination reactor to form a reactor effluent stream comprising reactant salt. The reactor effluent stream is filtered to remove the reactant salt and catalyst fines to produce a filtered reactor effluent stream. A carbon dioxide recycle stream is taken from the filtered reactor effluent stream.
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4.发明公开公开(公告)号：US20240261725A1
公开(公告)日：2024-08-08
申请号：US18424123
申请日：2024-01-26
Applicant: UOP LLC
Inventor： Sakthivelan Maadasamy Durai , Jan De Ren , Shubhra J. Bhadra , Erick J. Bennett, III
CPC classification number: B01D53/60 , B01D53/0462 , B01D53/047 , B01D53/0476 , B01D53/26 , B01D53/343 , B01J8/1827 , B01J8/1836 , B01J8/26 , F25J3/0219 , F25J3/0261 , F25J3/0266 , B01D2256/20 , B01D2256/22 , B01D2257/504 , B01D2258/0283 , B01D2259/65 , B01J2208/00274 , F25J2205/04 , F25J2210/70 , F25J2245/02
Abstract: Processes for separating CO from CO2 in flue gas streams from partial oxidation regenerator in FCC processes, as well as reducing the sulfur content of the flue gas stream are described. The processes involve separating the cooled reactor effluent stream into a CO2 product stream, the CO2 recycle stream, and a CO product stream. The processes may incorporate either dry sorbent injection (DSI) units or wet gas scrubbing units to remove sulfur compounds. The separation processes can utilize cryogenic fractionation, pressure swing adsorption (PSA) processes including vacuum PSA, and temperature swing adsorption (TSA) processes. The flue gas stream can be used to preheat the CO2 recycle stream.
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公开(公告)号：US20240017228A1
公开(公告)日：2024-01-18
申请号：US18221383
申请日：2023-07-12
Applicant: UOP LLC
Inventor： Sakthivelan Maadasamy Durai , Ashim Mandal , Sathit Kulprathipanja , Michael A. Stine , Xin X. Zhu
CPC classification number: B01J8/0055 , B01J8/1854 , B01D45/16 , B04C5/28 , B04C9/00 , B01J2208/00991 , B01J2208/00761
Abstract: A process and apparatus for catalytic conversion of feedstock and separating catalyst from product gas comprises a first hydrocarbon feedstock contacted with a first stream of catalyst in a first riser to produce a first mixture of catalyst and product gases. A second hydrocarbon feedstock is contacted with a second stream of catalyst in a second riser to produce a second mixture of catalyst and product gases. The first riser and/or the second riser may terminate within a reactor vessel. The first mixture of catalyst and product gases from the first riser pass into a first disengagement chamber within the reactor vessel. The second mixture of catalyst and product gases pass from the second riser into a second disengagement chamber within the same reactor vessel.
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Patent Agency Ranking
公开(公告)号：US20220193654A1
公开(公告)日：2022-06-23
申请号：US17550041
申请日：2021-12-14
Applicant: UOP LLC
Inventor： Minaz Makhania , Dharmesh Chunilal Panchal , Sakthivelan Maadasamy Durai , Lev Davydov , Richard A. Johnson, II , Sathit A. Kulprathipanja
IPC: B01J38/04
Abstract: Vent gases from a catalyst cooler are directed downstream or outside of the catalyst regenerator to avoid sending air to a location where after burn may occur. Vent gases contain oxygen that when contacted with carbon monoxide in regenerator flue gas can cause after burn to occur at a location which lacks sufficient catalyst density to serve as a heat sink. Locating the cooling media supply in the top of the catalyst cooler enables cooled catalyst to drain from the bottom of the catalyst cooler and fitting more cooler tubes in the catalyst cooler.
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公开(公告)号：US20240158703A1
公开(公告)日：2024-05-16
申请号：US18139814
申请日：2023-04-26
Applicant: UOP LLC
Inventor： Jan De Ren , Sakthivelan Maadasamy Durai , Rakshit Mehta
CPC classification number: C10G11/182 , B01J38/02 , B01J38/06 , B01J38/32
Abstract: A process for regenerating catalyst from a fluidized catalytic process is disclosed. The process comprises passing a CO2 oxidation stream to a regenerator in which coke is combusted from catalyst to provide a CO2 rich flue gas stream. The CO2 rich flue gas stream is separated into an underflow stream comprising catalyst fines and a CO2 rich flue gas overflow stream. The overflow stream is separated into a recycle stream and a power recovery stream. The recycle stream of the overflow stream is recycled to the regenerator.
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公开(公告)号：US20240026228A1
公开(公告)日：2024-01-25
申请号：US18144790
申请日：2023-05-08
Applicant: UOP LLC
CPC classification number: C10G11/182 , C10G11/185 , F25J3/04533 , C10G2300/708
Abstract: A process for regenerating catalyst from a fluidized catalytic process comprising is disclosed. The process comprises providing an oxygen stream and a preheated carbon dioxide recycle stream and mixing the oxygen stream and the preheated carbon dioxide recycle stream to provide a carbon dioxide rich oxidation stream. The carbon dioxide rich oxidation stream is passed to a regenerator unit to provide a carbon dioxide rich flue gas stream. One or more of a sulfur-containing compound, a nitrogen-containing compound, or both in the carbon dioxide rich flue gas stream is reacted with a reactant in a decontamination reactor to form a reactor effluent stream comprising reactant salt. The reactor effluent stream is filtered to remove the reactant salt and catalyst fines to produce a filtered reactor effluent stream. A carbon dioxide recycle stream is taken from the filtered reactor effluent stream.
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公开(公告)号：US11214741B2
公开(公告)日：2022-01-04
申请号：US16801019
申请日：2020-02-25
Applicant: UOP LLC
Inventor： Lev Davydov , Robert Mehlberg , Matthew R. Wojtowicz , Patrick D. Walker , Sakthivelan Maadasamy Durai , Sathit Kulprathipanja
Abstract: A fluid catalytic cracking (FCC) process for cracking multiple feedstocks in a FCC apparatus comprising a first set of feed distributors having first distributor tips and a second set of feed distributors having second distributor tips is provided. A first feed is injected into the riser from first distributor tips. A second feed is injected into the riser from second distributor tips. The first distributor tips and the second distributor tips are positioned at different radii in the riser. The first feed and the second feed are cracked in the riser in the presence of an FCC catalyst to provide a cracked effluent stream. The first distributor tips and the second distributor tips are located into a region of lower catalyst density and a region of higher catalyst density respectively in the riser.
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公开(公告)号：US20210261870A1
公开(公告)日：2021-08-26
申请号：US16801019
申请日：2020-02-25
Applicant: UOP LLC
Inventor： Lev Davydov , Robert Mehlberg , Matthew R. Wojtowicz , Patrick D. Walker , Sakthivelan Maadasamy Durai , Sathit Kulprathipanja
Abstract: A fluid catalytic cracking (FCC) process for cracking multiple feedstocks in a FCC apparatus comprising a first set of feed distributors having first distributor tips and a second set of feed distributors having second distributor tips is provided. A first feed is injected into the riser from first distributor tips. A second feed is injected into the riser from second distributor tips. The first distributor tips and the second distributor tips are positioned at different radii in the riser. The first feed and the second feed are cracked in the riser in the presence of an FCC catalyst to provide a cracked effluent stream. The first distributor tips and the second distributor tips are located into a region of lower catalyst density and a region of higher catalyst density respectively in the riser.
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