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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
发明人： Tao Zhang , Mao Ye , Zhongmin Liu , Jinling Zhang , Hailong Tang , Jinming Jia , Changqing He , Xiangao Wang , Cheng Zhang , Hua Li , Yinfeng Zhao , Chenggong Li
摘要： 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：US11712675B2
公开(公告)日：2023-08-01
申请号：US16767238
申请日：2017-11-30
发明人： Tao Zhang , Mao Ye , Zhongmin Liu , Jinling Zhang , Hailong Tang , Jinming Jia , Xiangao Wang , Cheng Zhang , Hua Li , Yinfeng Zhao , Chenggong Li
CPC分类号： 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
摘要： 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
发明人： Mao Ye , Tao Zhang , Jinling Zhang , Zhongmin Liu , Jinming Jia , Hailong Tang , Changqing He , Xiangao Wang , Cheng Zhang , Hua Li , Yinfeng Zhao , Chenggong Li
摘要： 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：US10967350B2
公开(公告)日：2021-04-06
申请号：US16608816
申请日：2017-11-24
发明人： 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分类号： B01J8/18 , B01J8/00 , B01J8/26 , B01J29/40 , B01J29/90 , C07C1/20 , C07C2/86 , C07C9/02 , C07C15/08
摘要： 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
发明人： Mao Ye , Tao Zhang , Changqing He , Jinling Zhang , Xiangao Wang , Hailong Tang , Jinming Jia , Yinfeng Zhao , Zhongmin Liu
摘要： 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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公开(公告)号：US11872549B2
公开(公告)日：2024-01-16
申请号：US17784650
申请日：2020-10-16
发明人： 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分类号： B01J8/1809 , B01J8/0065 , B01J8/1836 , B01J8/1863 , B01J8/26 , C07C1/22 , C10G3/60 , B01J2208/00707 , B01J2208/00938 , B01J2208/00991 , C07C2529/85 , C10G2300/4075
摘要： 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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公开(公告)号：US11180431B2
公开(公告)日：2021-11-23
申请号：US16608427
申请日：2017-11-24
发明人： Mao Ye , Tao Zhang , Zhongmin Liu , Jinling Zhang , Hailong Tang , Jinming Jia , Changqing He , Xiangao Wang , Cheng Zhang , Hua Li , Yinfeng Zhao , Chenggong Li
IPC分类号： C07C1/24 , C07C2/88 , C07C15/08 , B01J8/26 , B01J8/34 , B01J8/44 , B01J8/00 , B01J8/18 , C07C1/22
摘要： A turbulent fluidized bed reactor, device and method for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and toluene, resolving or improving the competition problem between an MTO reaction and an alkylation reaction during the process of producing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and toluene, and achieving a synergistic effect between the MTO reaction and the alkylation reaction. By controlling the mass transfer and reaction, competition between the MTO reaction and the alkylation reaction is coordinated and optimized to facilitate a synergistic effect of the two reactions, so that the conversion rate of toluene, the yield of para-xylene, and the selectivity of light olefins are increased. The turbulent fluidized bed reactor includes a first reactor feed distributor and a number of second reactor feed distributors and are arranged sequentially along the gas flow direction.
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公开(公告)号：US11161085B2
公开(公告)日：2021-11-02
申请号：US16608422
申请日：2017-11-24
发明人： Tao Zhang , Mao Ye , Zhongmin Liu , Jinling Zhang , Hailong Tang , Jinming Jia , Changqing He , Xiangao Wang , Cheng Zhang , Hua Li , Yinfeng Zhao , Chenggong Li
摘要： A turbulent fluidized bed reactor, device and method for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and benzene, resolving or improving the competition problem between an MTO reaction and an alkylation reaction during the process of producing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and benzene, and achieving a synergistic effect between the MTO reaction and the alkylation reaction. By controlling the mass transfer and reaction, competition between the MTO reaction and the alkylation reaction is coordinated and optimized to facilitate a synergistic effect of the two reactions, so that the conversion rate of benzene, the yield of para-xylene, and the selectivity of light olefins are increased. The turbulent fluidized bed reactor includes a first reactor feed distributor and a number of second reactor feed distributors; the first reactor feed distributor and the plurality of second reactor feed distributions are sequentially arranged.
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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
发明人： 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分类号： 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
摘要： 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
发明人： Mao Ye , Jibin Zhou , Tao Zhang , Jinling Zhang , Yinfeng Zhao , Xiangao Wang , Jinming Jia , Hailong Tang , Zhongmin Liu
摘要： 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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