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1.发明申请公开(公告)号：US20200339495A1
公开(公告)日：2020-10-29
申请号：US16860603
申请日：2020-04-28
申请人： Institute of Coal Chemistry, Chinese Academy of Sciences , Shanxi Lu'an Mining (Group) Co., Ltd.
发明人： Weibin FAN , Guofu WANG , Jiaqi GUO , Jianguo WANG , Mei DONG , Pengfei WANG , Youliang CEN , Yaning XIAO , Dongfei WANG , Shoujing SUN , Weilin WANG , Juncai ZHANG , Min ZHANG , Yunhong LI
IPC分类号： C07C41/56 , C07C41/58 , B01J29/40 , B01J29/70 , B01J4/00 , B01J19/18 , B01J19/00 , B01D69/04 , B01D67/00
摘要： The disclosure relates to a process for continuously producing polyoxymethylene dimethyl ethers at low temperature, pertains to the technical field of polyoxymethylene dimethyl ether preparation processes, and solves the technical problem of continuous production of polyoxymethylene dimethyl ether. A membrane separation element with precisely controlled pores in membrane is used to realize a direct separation of the feedstocks from the catalyst within the reactor, and effectively reduce the permeation resistance of the separation membrane tube. By oppositely switching the flowing direction of liquid reaction materials, the adhesion of the catalyst to the separation membrane tube is inhibited, and some particles stuck in separation membrane tube are removed, which ensures the continuous operation of the reaction process and allows a molecular sieve catalyst to exhibit its advantage of long catalytic life.
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公开(公告)号：US11305265B2
公开(公告)日：2022-04-19
申请号：US16994113
申请日：2020-08-14
申请人： Institute of Coal Chemistry, Chinese Academy of Sciences , Shanxi Lu'an Mining (Group) Co., Ltd.
发明人： Weibin Fan , Dezhi Shi , Huaqing Zhu , Mei Dong , Jianguo Wang , Zhiwei Wu , Weiyong Jiao , Junyi Liu , Dongfei Wang , Jinbo Li , Yanbin Cui , Yibo Zhang
IPC分类号： C07C2/84 , B01J29/40 , B01J23/18 , B01J35/00 , B01J37/04 , B01J37/08 , C07C2/06 , C07C2/08 , C07C2/10 , C07C2/04 , C07C2/12 , C07C2/76 , C07C15/06 , C07C15/08 , B01J35/10
摘要： An aromatization catalyst and preparation process and use thereof is set forth. The catalyst comprises an inorganic oxide and a modified Ga-ZSM-5 zeolite, which comprises a modified ZSM-5 zeolite with a hierarchical macro-meso-microporosity and gallium deposited in channels of and/or on surfaces of the modified ZSM-5 zeolite. The hierarchical porosity of the modified ZSM-5 zeolite in the catalyst can reduce diffusion resistance of products during the aromatization reaction, thereby retarding carbon depositing rate and substantially improving catalytic activity, aromatic hydrocarbon selectivity, stability and lifetime of the catalyst. When being used in aromatization of propane, the catalyst exhibits a high stability, a lifetime of more than 320 hours, and a selectivity to aromatic hydrocarbons of up to 73.3 wt. %.
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公开(公告)号：US20200338516A1
公开(公告)日：2020-10-29
申请号：US16849396
申请日：2020-04-15
申请人： Institute of Coal Chemistry, Chinese Academy of Sciences , Shanxi Lu'an Mining (Group) Co., Ltd.
发明人： Weibin Fan , Guofu Wang , Jiaqi Guo , Jianguo Wang , Mei Dong , Youliang Cen , Yaning Xiao , Dongfei Wang , Shoujing Sun , Weilin Wang , Juncai Zhang , Min Zhang , Yunhong Li
摘要： A continuous slurry-bed tank reactor, comprising a tank reactor body, an agitator, and tubular separation membranes. A method of using the continuous slurry-bed tank reactor comprising adding a catalyst, feeding reactants, stopping feeding the reactants, starting a heating system, changing directions of the reactants flowing through the tubular separation membranes.
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公开(公告)号：US11338263B2
公开(公告)日：2022-05-24
申请号：US16849396
申请日：2020-04-15
申请人： Institute of Coal Chemistry, Chinese Academy of Sciences , Shanxi Lu'an Mining (Group) Co., Ltd.
发明人： Weibin Fan , Guofu Wang , Jiaqi Guo , Jianguo Wang , Mei Dong , Youliang Cen , Yaning Xiao , Dongfei Wang , Shoujing Sun , Weilin Wang , Juncai Zhang , Min Zhang , Yunhong Li
IPC分类号： B01J8/10 , B01F7/22 , B01D65/02 , B01J8/08 , B01J8/00 , C07C249/08 , C07C41/03 , B01F27/91 , B01F101/00
摘要： A continuous slurry-bed tank reactor, comprising a tank reactor body, an agitator, and tubular separation membranes. A method of using the continuous slurry-bed tank reactor comprising adding a catalyst, feeding reactants, stopping feeding the reactants, starting a heating system, changing directions of the reactants flowing through the tubular separation membranes.
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公开(公告)号：US11084772B2
公开(公告)日：2021-08-10
申请号：US16860603
申请日：2020-04-28
申请人： Institute of Coal Chemistry, Chinese Academy of Sciences , Shanxi Lu'an Mining (Group) Co., Ltd.
发明人： Weibin Fan , Guofu Wang , Jiaqi Guo , Jianguo Wang , Mei Dong , Pengfei Wang , Youliang Cen , Yaning Xiao , Dongfei Wang , Shoujing Sun , Weilin Wang , Juncai Zhang , Min Zhang , Yunhong Li
IPC分类号： C07C41/56 , B01D67/00 , B01D69/04 , B01J4/00 , B01J19/00 , B01J19/18 , B01J29/40 , B01J29/70 , C07C41/58 , B01D71/02 , C07C43/303
摘要： The disclosure relates to a process for continuously producing polyoxymethylene dimethyl ethers at low temperature, pertains to the technical field of polyoxymethylene dimethyl ether preparation processes, and solves the technical problem of continuous production of polyoxymethylene dimethyl ether. A membrane separation element with precisely controlled pores in membrane is used to realize a direct separation of the feedstocks from the catalyst within the reactor, and effectively reduce the permeation resistance of the separation membrane tube. By oppositely switching the flowing direction of liquid reaction materials, the adhesion of the catalyst to the separation membrane tube is inhibited, and some particles stuck in separation membrane tube are removed, which ensures the continuous operation of the reaction process and allows a molecular sieve catalyst to exhibit its advantage of long catalytic life.
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公开(公告)号：US20210213432A1
公开(公告)日：2021-07-15
申请号：US16994113
申请日：2020-08-14
申请人： Institute of Coal Chemistry, Chinese Academy of Sciences , Shanxi Lu'an Mining (Group) Co., Ltd.
发明人： Weibin Fan , Dezhi Shi , Huaqing Zhu , Mei Dong , Jianguo Wang , Zhiwei Wu , Weiyong Jiao , Junyi Liu , Dongfei Wang , Jinbo Li , Yanbin Cui , Yibo Zhang
摘要： An aromatization catalyst and preparation process and use thereof is set forth. The catalyst comprises an inorganic oxide and a modified Ga-ZSM-5 zeolite, which comprises a modified ZSM-5 zeolite with a hierarchical macro-meso-microporosity and gallium deposited in channels of and/or on surfaces of the modified ZSM-5 zeolite. The hierarchical porosity of the modified ZSM-5 zeolite in the catalyst can reduce diffusion resistance of products during the aromatization reaction, thereby retarding carbon depositing rate and substantially improving catalytic activity, aromatic hydrocarbon selectivity, stability and lifetime of the catalyst. When being used in aromatization of propane, the catalyst exhibits a high stability, a lifetime of more than 320 hours, and a selectivity to aromatic hydrocarbons of up to 73.3 wt. %.
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