-
公开(公告)号：US20230085715A1
公开(公告)日：2023-03-23
申请号：US17801811
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
摘要： A coke control reactor, a device for preparing low-carbon olefins from an oxygen-containing compound, and a use thereof are provided. The coke control reactor includes a riser reactor and a bed reactor; the bed reactor includes a bed reactor shell, and the bed reactor shell encloses a reaction zone I, a transition zone, and a gas-solid separation zone I from bottom to top; a bed reactor distributor is arranged in the reaction zone I; a coke controlled catalyst delivery pipe is arranged outside the reaction zone I; an upper section of the riser reactor penetrates through a bottom of the bed reactor and is axially inserted in the bed reactor; and an outlet end of the riser reactor is located in the transition zone. The coke control reactor can control the conversion and generation of coke species in a catalyst.
-
公开(公告)号：US20230002682A1
公开(公告)日：2023-01-05
申请号：US17784647
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
摘要： 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.
-
公开(公告)号：US20230001370A1
公开(公告)日：2023-01-05
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
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.
-
4.发明申请公开(公告)号：US20200179891A1
公开(公告)日：2020-06-11
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.
-
公开(公告)号：US20230125888A1
公开(公告)日：2023-04-27
申请号：US17802543
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
IPC分类号： B01J29/90 , B01J29/85 , B01J38/06 , B01J38/14 , B01J38/16 , C07C1/20 , C07C11/04 , C07C11/06 , B01J8/28 , B01J8/00 , B01J8/34 , B01J8/18 , B01J38/18
摘要： 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.
-
公开(公告)号：US20230001371A1
公开(公告)日：2023-01-05
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
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.
-
公开(公告)号：US20210121842A1
公开(公告)日：2021-04-29
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.
-
公开(公告)号：US20220401905A1
公开(公告)日：2022-12-22
申请号：US17777052
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
摘要： 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.
-
9.发明申请公开(公告)号：US20200048166A1
公开(公告)日：2020-02-13
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.
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.02 秒)
