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公开(公告)号：EP4082659A1
公开(公告)日：2022-11-02
申请号：EP20957237.9
申请日：2020-10-16
发明人： ZHANG, Tao , YE, Mao , ZHANG, Jinling , XU, Shuliang , TANG, Hailong , WANG, Xiangao , ZHANG, Cheng , JIA, Jinming , WANG, Jing , LI, Hua , LI, Chenggong , LIU, Zhongmin
摘要： The present application discloses a regeneration device, a device for preparing low-carbon olefins, and a use thereof. 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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2.发明公开
公开(公告)号：EP4082655A1
公开(公告)日：2022-11-02
申请号：EP20957238.7
申请日：2020-10-16
发明人： YE, Mao , ZHANG, Tao , ZHANG, Jinling , XU, Shuliang , TANG, Hailong , WANG, Xiangao , ZHANG, Cheng , JIA, Jinming , WANG, Jing , LI, Hua , LI, Chenggong , LIU, Zhongmin
摘要： The present application discloses a fluidized bed regenerator, a device for preparing low-carbon olefins, and a use thereof. 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. The regenerator 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：EP3628397A1
公开(公告)日：2020-04-01
申请号：EP17907992.6
申请日：2017-11-24
发明人： ZHANG, Tao , YE, Mao , LIU, Zhongmin , ZHANG, Jinling , TANG, Hailong , JIA, Jinming , HE, Changqing , WANG, Xiangao , ZHANG, Cheng , LI, Hua , ZHAO, Yinfeng , LI, Chenggong
IPC分类号： B01J8/18
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：EP3617177A1
公开(公告)日：2020-03-04
申请号：EP17907100.6
申请日：2017-11-24
发明人： YE, Mao , ZHANG, Tao , ZHANG, Jinling , LIU, Zhongmin , JIA, Jinming , TANG, Hailong , HE, Changqing , WANG, Xiangao , ZHANG, Cheng , LI, Hua , ZHAO, Yinfeng , LI, Chenggong
摘要： Disclosed is a fluidized bed reactor for producing para-xylene and co-producing light olefins from benzene and methanol and/or dimethyl ether, comprising 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. Disclosed is a method for producing para-xylene and co-producing light olefins, mainly comprising the following steps: (1) a material stream A enters a reaction zone of the fluidized bed reactor from the first gas distributor; (2) a material stream B enters the reaction zone of the fluidized bed reactor from the second gas distributor; (3) a reactant contacts a catalyst in the reaction zone to generate a gas phase stream comprising para-xylene and light olefins. The present invention coordinates and optimizes the competition between a benzene alkylation reaction and an MTO reaction by controlling the mass transfer to facilitate a synergistic effect between two reactions, so that the conversion rate of benzene and the yield of para-xylene are greatly increased.
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公开(公告)号：EP3616783A1
公开(公告)日：2020-03-04
申请号：EP17908076.7
申请日：2017-11-24
发明人： ZHANG, Tao , YE, Mao , JIA, Jinming , LIU, Zhongmin , ZHANG, Jinling , TANG, Hailong , HE, Changqing , WANG, Xiangao , ZHANG, Cheng , LI, Hua , ZHAO, Yinfeng , LI, Chenggong
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：EP3616782A1
公开(公告)日：2020-03-04
申请号：EP17907470.3
申请日：2017-11-24
发明人： ZHANG, Tao , YE, Mao , LIU, Zhongmin , ZHANG, Jinling , TANG, Hailong , JIA, Jinming , HE, Changqing , WANG, Xiangao , ZHANG, Cheng , LI, Hua , ZHAO, Yinfeng , LI, Chenggong
IPC分类号： B01J8/18
摘要： Disclosed are 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 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 distributions are sequentially arranged along the gas flow direction in a reaction zone of the turbulent fluidized bed reactor.
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7.发明公开
公开(公告)号：EP4082658A1
公开(公告)日：2022-11-02
申请号：EP20957236.1
申请日：2020-10-16
发明人： ZHANG, Tao , YE, Mao , ZHANG, Jinling , XU, Shuliang , TANG, Hailong , WANG, Xiangao , ZHANG, Cheng , JIA, Jinming , WANG, Jing , LI, Hua , LI, Chenggong , LIU, Zhongmin
摘要： The present application discloses a coke control reactor, a device for preparing low-carbon olefins from an oxygen-containing compound, and a use thereof. 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. On the one hand, inactive large-molecule coke species remaining in a regenerated catalyst are converted into small-molecule coke species; and on the other hand, a riser reactor raw material and a bed reactor raw material can also enter the catalyst to generate highly-active small-molecule coke species to improve the selectivity for ethylene.
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公开(公告)号：EP3617178A1
公开(公告)日：2020-03-04
申请号：EP17907538.7
申请日：2017-11-24
发明人： YE, Mao , ZHANG, Tao , LIU, Zhongmin , ZHANG, Jinling , TANG, Hailong , JIA, Jinming , HE, Changqing , WANG, Xiangao , ZHANG, Cheng , LI, Hua , ZHAO, Yinfeng , LI, Chenggong
摘要： Disclosed are 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 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 distributions are sequentially arranged along the gas flow direction in a reaction zone of the turbulent fluidized bed reactor.
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9.发明公开
公开(公告)号：EP4105193A1
公开(公告)日：2022-12-21
申请号：EP20957235.3
申请日：2020-10-16
发明人： ZHANG, Tao , YE, Mao , ZHANG, Jinling , XU, Shuliang , TANG, Hailong , WANG, Xiangao , ZHANG, Cheng , JIA, Jinming , WANG, Jing , LI, Hua , LI, Chenggong , LIU, Zhongmin
摘要： The present application discloses a coke control reactor, and a device and method for preparing low-carbon olefins from an oxygen-containing compound. 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 a cross-sectional area at any position 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 coke control reactor of the present application 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, thereby controlling a coke content in the catalyst.
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公开(公告)号：EP4088811A1
公开(公告)日：2022-11-16
申请号：EP20957232.0
申请日：2020-10-16
发明人： YE, Mao , ZHANG, Tao , ZHANG, Jinling , XU, Shuliang , TANG, Hailong , WANG, Xiangao , ZHANG, Cheng , JIA, Jinming , WANG, Jing , LI, Hua , LI, Chenggong , LIU, Zhongmin
摘要： The present application discloses a fluidized bed reactor, a device, and a production method. The 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, such that a catalyst entering the coke control zone flows in an annular direction. The fluidized bed reactor can control the coke content, coke content distribution, and coke species in a dimethyl ether/methanol to olefins (DMTO) catalyst, thereby controlling the performance of the DMTO catalyst and improving the selectivity for low-carbon olefins.
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