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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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公开(公告)号：US11311852B2
公开(公告)日：2022-04-26
申请号：US16608819
申请日：2017-11-24
Inventor： Tao Zhang , Mao Ye , Zhongmin Liu , Jinling Zhang , Hailong Tang , Jinming Jia , Changqing He , Xiangao Wang , Cheng Zhang , Hua Li , Yinfeng Zhao , Chenggong Li
Abstract: Disclosed are a fast fluidized bed reactor, device and method for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and toluene, with the reactor, device and method being capable of solving or improving the problem of competition between an alkylation reaction and an MTO reaction during the process of producing the para-xylene and co-producing light olefins from toluene and methanol, thus achieving a synergistic effect between the MTO reaction and the alkylation reaction. By controlling the mass transfer and reaction, the competition between the alkylation reaction and the MTO reaction is coordinated and optimized to achieve a synergistic effect, thereby increasing the conversion rate of toluene, the yield of para-xylene and the selectivity of the light olefins. The fast fluidized bed reactor comprises a first reactor feed distributor and a plurality of second reactor feed distributors, the first reactor feed distributor and the plurality of second reactor feed distributors are sequentially arranged along the gas flow direction in a reaction zone of the fast fluidized bed reactor.
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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：US10967350B2
公开(公告)日：2021-04-06
申请号：US16608816
申请日：2017-11-24
Inventor： Tao Zhang , Mao Ye , Jinming Jia , Zhongmin Liu , Jinling Zhang , Hailong Tang , Changqing He , Xiangao Wang , Cheng Zhang , Hua Li , Yinfeng Zhao , Chenggong Li
IPC: B01J8/18 , B01J8/00 , B01J8/26 , B01J29/40 , B01J29/90 , C07C1/20 , C07C2/86 , C07C9/02 , C07C15/08
Abstract: Disclosed are a fluidized bed gas distributor and a fluidized bed reactor, the fluidized bed reactor comprising a first distributor (1) and a second distributor (2), wherein the first distributor (1) is located at the bottom of a fluidized bed, and second distributor (2) is located downstream of a gas from the first distributor (1). Also disclosed is a method for producing a para-xylene and co-producing light olefins, the method comprising the following steps: material stream A enters a reaction zone (3) of a fluidized bed reactor from a first gas distributor (1); material stream B enters the reaction zone (3) of the fluidized bed reactor from a second gas distributor (2); and the reactants are brought into contact with a catalyst in the reaction zone (3) to generate a gas phase stream comprising para-xylene and light olefins.
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公开(公告)号：US10702841B2
公开(公告)日：2020-07-07
申请号：US16342580
申请日：2016-10-19
Inventor： Mao Ye , Tao Zhang , Changqing He , Jinling Zhang , Xiangao Wang , Hailong Tang , Jinming Jia , Yinfeng Zhao , Zhongmin Liu
Abstract: A fast fluidized-bed reactor, device and method for preparing propylene and C4 hydrocarbons from oxygen-containing compounds. The device includes the fast fluidized-bed reactor and a fluidized-bed regenerator for regenerating a catalyst. The method includes: a) feeding a raw material containing the oxygen-containing compounds from reactor feed distributors to a dense phase zone of the fast fluidized-bed reactor, and contacting the raw material with a catalyst, to generate a stream containing target product and a spent catalyst containing carbon; b) sending the stream into a product separation system, obtaining propylene, C4 hydrocarbons, light fractions and the like after separation, returning 70 wt. % or more of the light fractions to the dense phase zone of the fast fluidized-bed reactor from the reactor feed distributor.
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Patent Agency Ranking
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：US11712675B2
公开(公告)日：2023-08-01
申请号：US16767238
申请日：2017-11-30
Inventor： Tao Zhang , Mao Ye , Zhongmin Liu , Jinling Zhang , Hailong Tang , Jinming Jia , Xiangao Wang , Cheng Zhang , Hua Li , Yinfeng Zhao , Chenggong Li
CPC classification number: B01J8/1827 , B01D45/16 , B01D50/20 , B01J8/002 , B01J8/006 , B01J8/0055 , B01J8/1836 , B01J29/40 , B01J29/85 , B01J37/28 , B01J2208/00389 , B01J2208/00504 , B01J2208/00752 , B01J2208/00893
Abstract: The present application discloses a molecular sieve-based catalyst modification apparatus. The apparatus comprises a feed unit 1, a modification unit 2 and a cooling unit 3 connected in sequence; the feed unit comprises a catalyst feed unit 11 and a modifier feed unit 12, a catalyst and a modifier are introduced into the modification unit 2 respectively by the catalyst feed unit and the modifier feed unit and are discharged from the modification unit after sufficient reaction in modification unit, and then enter the cooling unit 3 for cooling. The present application further discloses a use method for the molecular sieve-based catalyst modification apparatus. The use method comprises: introducing a catalyst and a modifier into the modification unit 2 respectively through the feed unit 1; wherein the catalyst is modified by the modifier in the modification unit 2, and then discharged to the cooling unit 3 to cool until the temperature is lower than 50° C., and then the cooled modified catalyst is transferred to any storage device.
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公开(公告)号：US11072571B2
公开(公告)日：2021-07-27
申请号：US16608444
申请日：2017-11-24
Inventor： Mao Ye , Tao Zhang , Jinling Zhang , Zhongmin Liu , Jinming Jia , Hailong Tang , Changqing He , Xiangao Wang , Cheng Zhang , Hua Li , Yinfeng Zhao , Chenggong Li
Abstract: A fluidized bed reactor for producing para-xylene and co-producing light olefins from benzene and methanol and/or dimethyl ether, including a first distributor and a second distributor. The first distributor is located at the bottom of the fluidized bed, and the second distributor is located at the downstream of the first distributor along a gas flow direction. Also, a method for producing para-xylene and co-producing light olefins, including the following steps: a material stream A enters a reaction zone of the fluidized bed reactor from the first gas distributor; a material stream B enters the reaction zone of the fluidized bed reactor from the second gas distributor; a reactant contacts a catalyst in the reaction zone to generate a gas phase stream comprising para-xylene and light olefins.
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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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10.发明授权公开(公告)号：US11504703B2
公开(公告)日：2022-11-22
申请号：US16767268
申请日：2017-12-05
Inventor： Mao Ye , Jibin Zhou , Tao Zhang , Jinling Zhang , Yinfeng Zhao , Xiangao Wang , Jinming Jia , Hailong Tang , Zhongmin Liu
Abstract: The present application discloses a method for partially regenerating a methanol to olefin catalyst, comprising: placing a deactivated methanol to olefin catalyst in a regenerator to carry out a partial regeneration reaction to obtain a regenerated catalyst; at least a portion of the regenerated catalyst has a coke amount of more than 1%. The present application discloses a methanol to olefin process, the methanol to olefin reaction is carried out in a fluidized bed with the use of a methanol to olefin catalyst, wherein at least a portion of the regenerated catalyst has a coke amount of more than 1%.
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