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公开(公告)号：US12296329B2
公开(公告)日：2025-05-13
申请号：US17777052
申请日：2020-10-16
Inventor： Mao Ye , Tao Zhang , Jinling Zhang , Shuliang Xu , Hailong Tang , Xiangao Wang , Cheng Zhang , Jinming Jia , Jing Wang , Hua Li , Chenggong Li , Zhongmin Liu
Abstract: A fluidized bed regenerator, a device for preparing low-carbon olefins, and a use thereof are provided. The fluidized bed regenerator includes a second activation zone, a first activation zone, and a gas-solid separation zone from bottom to top; the second activation zone axially communicates with the gas-solid separation zone; the first activation zone is arranged on a periphery of a junction between the second activation zone and the gas-solid separation zone; the first activation zone is an annular cavity; n baffles are radially arranged in the first activation zone, and the n baffles divide the first activation zone into n first activation zone subzones; and a catalyst circulation hole is formed in each of n−1 of the baffles such that a catalyst entering the first activation zone flows in an annular direction.
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公开(公告)号：US12296324B2
公开(公告)日：2025-05-13
申请号：US17802543
申请日：2020-10-16
Inventor： Tao Zhang , Mao Ye , Jinling Zhang , Shuliang Xu , Hailong Tang , Xiangao Wang , Cheng Zhang , Jinming Jia , Jing Wang , Hua Li , Chenggong Li , Zhongmin Liu
IPC: B01J8/26 , B01J8/00 , B01J8/18 , B01J8/28 , B01J8/34 , B01J29/85 , B01J29/90 , B01J38/06 , B01J38/12 , B01J38/14 , B01J38/16 , B01J38/18 , B01J38/22 , B01J38/30 , C07C1/20 , C07C11/04 , C07C11/06
Abstract: A regeneration device, a device for preparing low-carbon olefins, and a use thereof are provided. The regeneration device includes a first regenerator and a second regenerator; a first activation zone of the first regenerator is connected to the second regenerator through a pipeline, such that a catalyst in the first activation zone is able to be delivered to the second regenerator; and the second regenerator is connected to a gas-solid separation zone of the first regenerator through a pipeline, such that a catalyst in the second regenerator is able to be delivered to the gas-solid separation zone. The regeneration device can adjust the coke content, coke content distribution, and coke species in a dimethyl ether/methanol to olefins (DMTO) catalyst to control an operation window of the DMTO catalyst, which improves the selectivity for low-carbon olefins and the atomic economy of a methanol-to-olefins (MTO) technology.
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公开(公告)号：US11872549B2
公开(公告)日：2024-01-16
申请号：US17784650
申请日：2020-10-16
Inventor： Mao Ye , Tao Zhang , Jinling Zhang , Shuliang Xu , Hailong Tang , Xiangao Wang , Cheng Zhang , Jinming Jia , Jing Wang , Hua Li , Chenggong Li , Zhongmin Liu
CPC classification number: B01J8/1809 , B01J8/0065 , B01J8/1836 , B01J8/1863 , B01J8/26 , C07C1/22 , C10G3/60 , B01J2208/00707 , B01J2208/00938 , B01J2208/00991 , C07C2529/85 , C10G2300/4075
Abstract: A fluidized bed reactor includes a main shell and a coke control zone shell; the main shell includes an upper shell and a lower shell; the upper shell encloses a gas-solid separation zone, and the lower shell encloses a reaction zone; the reaction zone axially communicates with the gas-solid separation zone; the coke control zone shell is circumferentially arranged on an outer wall of the main shell; the coke control zone shell and the main shell enclose an annular cavity, and the annular cavity is a coke control zone; n baffles are radially arranged in the coke control zone, and the n baffles divide the coke control zone into n coke control zone subzones, where n is an integer; the coke control zone subzones are provided with a coke control raw material inlet; and a catalyst circulation hole is formed in each of n−1 of the baffles.
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Patent Agency Ranking
4.发明授权公开(公告)号：US11685866B2
公开(公告)日：2023-06-27
申请号：US17422679
申请日：2019-01-28
Applicant: SABIC Global Technologies B.V. , DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
Inventor： Yinfeng Zhao , Mao Ye , Zhongmin Liu , Hailong Tang , Jing Wang , Jinling Zhang , Tao Zhang , Talal Khaled Al-Shammari
IPC: C10G11/18 , B01J35/02 , C07C4/06 , C10G61/00 , C10G69/08 , C10G59/00 , C10G63/00 , C10G35/00 , C10G69/10 , C10G45/58 , C07C4/10 , C07C4/12
CPC classification number: C10G11/18 , B01J35/023 , B01J35/026 , C07C4/06 , C07C4/10 , C07C4/12 , C10G35/00 , C10G45/58 , C10G59/00 , C10G61/00 , C10G63/00 , C10G69/08 , C10G69/10 , C10G2300/1044 , C10G2300/301 , C10G2300/4006 , C10G2300/4012 , C10G2300/4018 , C10G2400/20 , C10G2400/30
Abstract: Disclosed is a method for producing low carbon olefins and/or aromatics from feedstock comprising naphtha. The method can include the following steps: a) feeding feedstock comprising naphtha into a fast fluidized bed reactor; b) contacting the feedstock with a catalyst under conditions to produce a gas product and spent catalyst; c) separating the gas product to produce a stream comprising primarily one or more low carbon olefins and/or one or more aromatics; d) transporting the spent catalyst to a regenerator; e) regenerating the spent catalyst in the regenerator to form regenerated catalyst; and f) returning the regenerated catalyst to the fast fluidized bed reactor.
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公开(公告)号：US11833502B2
公开(公告)日：2023-12-05
申请号：US17784649
申请日：2020-10-16
Inventor： Tao Zhang , Mao Ye , Jinling Zhang , Shuliang Xu , Hailong Tang , Xiangao Wang , Cheng Zhang , Jinming Jia , Jing Wang , Hua Li , Chenggong Li , Zhongmin Liu
CPC classification number: B01J8/1809 , B01J8/005 , B01J8/1863 , B01J8/228 , B01J8/26 , C07C1/22 , C10G3/60 , B01J2208/0084 , B01J2208/00707 , B01J2208/00761 , B01J2208/00938 , B01J2208/00991 , C07C2529/85 , C10G2300/4075
Abstract: A coke control reactor, and a device and method for preparing low-carbon olefins from an oxygen-containing compound are provided. The coke control reactor includes a coke control reactor shell, a reaction zone I, and a coke controlled catalyst settling zone; a cross-sectional area at any position of the reaction zone I is less than that of the coke controlled catalyst settling zone; n baffles are arranged in a vertical direction in the reaction zone I; the n baffles divide the reaction zone I into m reaction zone I subzones; and a catalyst circulation hole is formed in each of the baffles, such that a catalyst flows in the reaction zone I in a preset manner. A catalyst charge in the present coke control reactor can be automatically adjusted, and an average residence time of a catalyst in the coke control reactor can be controlled by changing process operating conditions.
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公开(公告)号：US11975315B2
公开(公告)日：2024-05-07
申请号：US17609764
申请日：2019-05-10
Inventor： Jinling Zhang , Mao Ye , Zhongmin Liu , Jibin Zhou , Tao Zhang , Xiangao Wang , Hailong Tang , Jing Wang
Abstract: Disclosed is a method for partially regenerating a catalyst for methanol and/or dimethyl ether-to-olefin. The method comprises: introducing a mixed gas into a regenerated region containing a catalyst to be regenerated, and subjecting same to a partial regeneration reaction to obtain a regenerated catalyst, wherein the mixed gas contains water vapor and air; and in the regenerated catalyst, the coke content of at least part of the regenerated catalyst is greater than 1%. The method utilizes the coupling of a mixed gas of water vapor and air to activate a deactivated catalyst, selectively eliminate part of a coke deposit in the catalyst to be regenerated, and obtain a partially regenerated catalyst for methanol-to-olefin. Another aspect of the present invention is that further provided is a method for methanol and/or dimethyl ether-to-olefin by using the partially regenerated catalyst for methanol-to-olefin regenerated by means of the method.
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公开(公告)号：US12122961B2
公开(公告)日：2024-10-22
申请号：US17421576
申请日：2019-01-28
Applicant: SABIC Global Technologies B.V. , DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
Inventor： Mao Ye , Yinfeng Zhao , Zhongmin Liu , Hailong Tang , Jing Wang , Jinling Zhang , Tao Zhang , Talal Khaled Al-Shammari
CPC classification number: C10G11/182 , B01J8/1863 , B01J8/1872 , B01J8/24 , B01J35/40 , B01J35/51 , B01J2208/00991 , C10G2300/1044 , C10G2300/4018 , C10G2300/4025 , C10G2300/4093 , C10G2300/701 , C10G2300/703 , C10G2400/20 , C10G2400/30
Abstract: The present disclosure includes a system for producing low carbon olefins and/or aromatics from raw material comprising naphtha. The system can include a reaction unit that includes a fast fluidized bed reactor, a stripping unit that includes a stripper, and a regeneration unit. The reactor unit is adapted to allow the catalytic cracking of naphtha and to output reaction unit effluent material (spent catalyst and product gas) into the stripping unit, which is adapted to output product gas. The stripping unit is connected to and in fluid communication with the regeneration unit such that the stripping unit supplies the spent catalyst from the reaction unit to regeneration unit. The regeneration unit is adapted to regenerate the spent catalyst to form regenerated catalyst. The regeneration unit is connected to and in fluid communication with the fast fluidized bed reactor such that, in operation, regenerated catalyst can be sent to the fast fluidized bed reactor of the reaction unit.
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公开(公告)号：US12286594B2
公开(公告)日：2025-04-29
申请号：US17784647
申请日：2020-10-16
Inventor： Mao Ye , Tao Zhang , Jinling Zhang , Shuliang Xu , Hailong Tang , Xiangao Wang , Cheng Zhang , Jinming Jia , Jing Wang , Hua Li , Chenggong Li , Zhongmin Liu
Abstract: A fluidized bed reactor, a device, and a method for producing low-carbon olefins from oxygen-containing compound are provided. The fluidized bed reactor includes a reactor shell, a reaction zone, a coke control zone and a delivery pipe, where there are n baffles arranged in the coke control zone, and the n baffles divide the coke control zone into n sub-coke control zones which include a first sub-coke control zone, a second sub-coke control zone, and an nth sub-coke control zone; at least one catalyst circulation hole is provided on each of the n-1 baffles, so that the catalyst flows in an annular shape in the coke control zone, where n is an integer. The device and method can be adapted to a new generation of DMTO catalyst, and the unit consumption of production ranges from 2.50 to 2.58 tons of methanol/ton of low-carbon olefins.
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