-
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.
-
2.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%.
-
公开(公告)号：US11084765B2
公开(公告)日：2021-08-10
申请号：US16608438
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
摘要： A fast 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.
-
公开(公告)号：US10710940B2
公开(公告)日：2020-07-14
申请号：US16342587
申请日：2016-10-19
发明人： Tao Zhang , Mao Ye , Changqing He , Jinling Zhang , Xiangao Wang , Hailong Tang , Jinming Jia , Yinfeng Zhao , Zhongmin Liu
摘要： A turbulent fluidized-bed reactor, device and method for preparing propylene and C4 hydrocarbons from oxygen-containing compounds. The device includes the turbulent 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 n reactor feed distributors to a reaction zone of the turbulent 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 discharged 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 reaction zone of the turbulent fluidized-bed reactor from the reactor feed distributor, and reacting ethylene and the oxygen-containing compounds to perform an alkylation reaction in presence of the catalyst, to produce products of propylene and the like.
-
公开(公告)号：US09926251B2
公开(公告)日：2018-03-27
申请号：US15521033
申请日：2015-11-26
发明人： Tao Zhang , Shuo Al , Mingyuan Zheng , Aiqin Wang , Weizhen Li , Xiaodong Wang
CPC分类号： C07C29/80 , B01D1/26 , B01D3/009 , B01D3/065 , B01D3/10 , B01D3/146 , B01D15/08 , B01J29/40 , C07C1/24 , C07C29/88 , C07C31/18 , C07C31/202
摘要： This invention discloses an approach for the separation of the close-boiling mixture of polyols. The raw material is ethylene glycol containing miscellaneous polyols (such as 1,2-propylene glycol and 1,2-butanediol). Over an acid catalyst, these miscellaneous polyols, through (1) a dehydration reaction, (2) pinacol rearrangement, and (3) acetalization or ketalization reaction, are converted into aldehydes (small amounts), acetals, and ketals (trace amount), which are simultaneously and readily separated via distillation. Meanwhile, after the reaction, the mixture is further separated to obtain an ethylene glycol product at a high purity. The invention provides a technique to remove the miscellaneous polyols from ethylene glycol via liquid-phase dehydration reactions under mild conditions, with low energy consumption. In particular, this approach is markedly effective for the removal of 1,2-butanediol that is difficult to be removed via conventional techniques. The purity of the resulting ethylene glycol product is high, and value-added acetals or ketals are co-produced.
-
6.发明授权公开(公告)号：US09718743B2
公开(公告)日：2017-08-01
申请号：US15100834
申请日：2013-12-03
发明人： Zhongmin Liu , Mao Ye , Tao Zhang , Changqing He , Xiangao Wang , Yinfeng Zhao
IPC分类号： C07C1/20 , C07C1/207 , C07C1/213 , C07C1/24 , C07C1/247 , B01J38/30 , B01J38/34 , B01J8/26 , B01J8/18 , B01J29/85 , B01J29/90 , B01J38/06 , B01J38/12
CPC分类号： C07C1/20 , B01J8/1827 , B01J8/1836 , B01J8/1872 , B01J8/26 , B01J8/34 , B01J8/36 , B01J29/85 , B01J29/90 , B01J38/06 , B01J38/12 , B01J2208/00141 , B01J2208/00902 , C07C2529/85 , Y02P20/584 , Y02P30/42 , C07C11/02
摘要： A method for preparing a light olefin using an oxygen-containing compound, and a device for use thereof, more specifically, taking methanol and/or dimethyl ether as main starting materials, using a multi-stage (n≧2) dense phase fluidized bed reactor and a multi-stage (m≧2) catalyst regenerator, which solves the problem in the prior art of the uniformity of catalyst carbon deposition and the carbon content being difficult to control and the light olefin selectivity being low.
-
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.
-
8.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
申请人： SABIC Global Technologies B.V. , DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
发明人： Yinfeng Zhao , Mao Ye , Zhongmin Liu , Hailong Tang , Jing Wang , Jinling Zhang , Tao Zhang , Talal Khaled Al-Shammari
IPC分类号： 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分类号： 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
摘要： 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.
-
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.
-
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.
-
-
-
-
-
-
-
-
-
搜索结果
26 条记录 (耗时 0.024 秒)
