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公开(公告)号：US20220144748A1
公开(公告)日：2022-05-12
申请号：US17427199
申请日：2019-02-02
发明人： Hongchao LIU , Wenliang ZHU , Zhongmin LIU , Shiping LIU , Xiangang MA , Yong LIU , Youming NI
摘要： Disclosed by the present application is a method for producing methyl acetate by means of the carbonylation of dimethyl ether. The method comprises: passing dimethyl ether and a feed gas comprising carbon monoxide through a reactor loaded with a solid acid catalyst for reaction so as to produce methyl acetate, the molar ratio of carbon monoxide to dimethyl ether being 0.05:1-0.5:1. The described method has the advantages of a low molar ratio of carbon monoxide to dimethyl ether, a high conversion rate of carbon monoxide, a small gas circulation amount, low operation costs and so on.
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公开(公告)号：US20220097032A1
公开(公告)日：2022-03-31
申请号：US17426979
申请日：2019-02-02
发明人： Hongchao LIU , Shiping LIU , Wenliang ZHU , Zhongmin LIU , Xiangang MA , Yong LIU , Ziqiao ZHOU , Youming NI
摘要： Provided are a molecular sieve catalyst, a preparation method therefor, an application thereof. The molecular sieve catalyst contains a modified Na-MOR molecular sieve, and the modification comprises: organic ammonium salt exchange, dealumination treatment, and ammonium ion exchange. The catalyst obtained by the method is used in dimethyl ether for one-step production of methyl acetate. The catalyst has high activity and stable performance, and the needs of industrial production can be satisfied.
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公开(公告)号：US20170320807A1
公开(公告)日：2017-11-09
申请号：US15526868
申请日：2014-11-17
发明人： Youming NI , Wenliang ZHU , Yong LIU , Hongchao LIU , Zhongmin LIU , Lina LI , Shiping LIU , Hui ZHOU
IPC分类号： C07C67/39 , C07C41/18 , B01J29/70 , B01J29/08 , B01J29/18 , B01J31/10 , B01J39/05 , B01J29/65 , B01J29/40 , C07C41/50 , B01J39/20
CPC分类号： C07C67/39 , B01J29/084 , B01J29/18 , B01J29/40 , B01J29/65 , B01J29/7007 , B01J29/7038 , B01J31/10 , B01J39/05 , B01J39/20 , B01J2231/50 , B01J2231/70 , C07C41/18 , C07C41/50 , C07C43/04 , C07C43/30 , C07C67/00 , C07C69/06
摘要： Method for preparing methyl formate and coproducing dimethyl ether by reacting a formaldehyde and methanol raw material (molar ratio range of 1:4 to 1:0.05) in a First Reaction Region at ranges from 50° C. to 100° C. with Catalyst A resulting in post-reaction material separated into Constituent I. Reacting Constituent I in a Second Reaction Region at ranges from 50° C. to 200° C. and from 0.1 MPa to 10 MPa with Catalyst B resulting in post-reaction material, which is separated into methyl formate, dimethyl ether and Constituent II. At least 1% of dimethyl ether is product, and recycling the rest to the First Reaction Region. Constituent II is recycled to the Second Reaction Region. Each component is gaseous phase and/or liquid phase, independently. The method shows long catalyst life, mild reaction condition, high utilization ratio of raw materials, continuous production and large scale industrial application potential.
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公开(公告)号：US20160311740A1
公开(公告)日：2016-10-27
申请号：US15103076
申请日：2013-12-16
发明人： Yong LIU , Wenliang ZHU , Hongchao LIU , Youming NI , Zhongmin LIU , Shuanghe MENG , Lina LI , Shiping LIU , HUI ZHOU
IPC分类号： C07C29/154 , C07C29/156 , B01J23/78 , B01J23/80 , B01J23/889 , B01J23/86 , C07C29/149 , B01J23/72
CPC分类号： C07C29/154 , B01J23/72 , B01J23/78 , B01J23/80 , B01J23/868 , B01J23/8892 , C07C29/149 , C07C29/156 , C07C2521/04 , C07C2521/10 , C07C2523/02 , C07C2523/06 , C07C2523/26 , C07C2523/28 , C07C2523/34 , C07C2523/72 , C07C2523/745 , C07C2523/755 , Y02P20/52 , C07C31/04 , C07C31/08
摘要： A method for producing ethanol and coproducing methanol on a catalyst in a reactor using a co-feed of a synthesis gas and acetate as a reaction raw material comprising passing a raw material gas containing an acetate and a synthesis gas through a reactor loaded with a catalyst to produce ethanol and coproduce methanol under conditions of a reaction temperature of 150-350° C., a reaction pressure of 0.1-20.0 MPa, a reaction volume hourly space velocity of 100-45000 mlg−1h−1, and an acetate weight hourly space velocity of 0.01-5.0 h−1; and the active components of the catalyst are copper and optionally zinc and/or aluminum, which greatly facilitates the conversion of carbon monoxide to methanol, while an extremely high activity of acetate hydrogenation is maintained.
摘要翻译： 使用合成气和乙酸酯的共同进料作为反应原料在反应器中在催化剂上生产乙醇和共同生产甲醇的方法，包括使含有乙酸酯和合成气的原料气体通过装载有催化剂的反应器 在反应温度为150-350℃，反应压力为0.1-20.0MPa，反应体积小时空速为100-45000mlg-1h-1和乙酸盐重量的条件下，生产乙醇并共同生产甲醇 空速为0.01-5.0 h-1; 并且催化剂的活性组分是铜和任选的锌和/或铝，这极大地有助于一氧化碳转化成甲醇，同时保持极高的乙酸氢化活性。
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公开(公告)号：US20200239401A1
公开(公告)日：2020-07-30
申请号：US16647174
申请日：2017-09-29
发明人： Hongchao LIU , Wenliang ZHU , Zhongmin LIU , Yong LIU , Shiping LIU , Fuli WEN , Youming NI , Xiangang MA
IPC分类号： C07C67/36 , C07C51/10 , B01J8/04 , B01J8/06 , B01J23/889 , B01J23/00 , B01J29/40 , B01J29/18 , B01J29/70
摘要： A method for directly producing methyl acetate and/or acetic acid from syngas, carried out in at least two reaction zones, including: feeding a raw material containing syngas into a first reaction zone to contact and react with a metal catalyst; allowing an obtained effluent to enter a second reaction zone directly or after the addition of carbon monoxide so as to contact and react with a solid acid catalyst; separating the obtained effluent to obtain product of acetate and/or acetic acid, and optionally returning a residual part to enter the first reaction zone and/or the second reaction zone to recycle the reaction. This provides a novel method for directly converting syngas into methyl acetate and/or acetic acid. Further, the product selectivity of the product of methyl acetate or acetic acid is greater than 93%, and the quantity of methyl acetate and acetic acid may be adjusted according to processing.
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6.发明申请METHOD FOR PREPARING POLYOXYMETHYLENE DIMETHYL ETHER CARBONYL COMPOUND AND METHYL METHOXYACETATE 有权制备聚氧乙烯二甲基醚类羰基化合物和甲基甲酸甲酯的方法公开(公告)号：US20170001941A1
公开(公告)日：2017-01-05
申请号：US15105364
申请日：2013-12-23
发明人： Youming NI , Wenliang ZHU , Hongchao LIU , Yong LIU , Zhongmin LIU , Shuanghe MENG , Lina LI , Shiping LIU , HUI ZHOU
IPC分类号： C07C67/37
CPC分类号： C07C67/37 , C07C67/38 , C07C69/708
摘要： A method for preparing a polyoxymethylene dimethyl ether carbonyl compound and/or methyl methoxyacetate as intermediates for producing ethylene glycol, which comprises passing a raw material: polyoxymethylene dimethyl ether or methylal together with carbon monoxide and hydrogen gas through a reactor carrying an acidic molecular sieve catalyst, and performing a reaction to prepare a corresponding product under an appropriate condition where no other solvent is added, in which the process of the reaction is a gas-liquid-solid three-phase reaction, the raw material of polyoxymethylene dimethyl ether or methylal has a high conversion rate, each product has a high selectivity, the catalyst has a long service life, additional solvents are not required to be used, and reaction conditions are relatively mild.
摘要翻译： 一种制备聚甲醛二乙醚羰基化合物和/或甲氧基乙酸甲酯作为生产乙二醇的中间体的方法，其包括将原料：聚甲醛二甲醚或甲缩醛与一氧化碳和氢气一起通过携带酸性分子筛催化剂的反应器 ，在不进行其他溶剂的适当条件下进行反应，制备相应的产物，其中反应过程为气 - 液 - 固三相反应，聚甲醛二甲醚或甲缩醛的原料具有 转化率高，每种产品选择性高，催化剂使用寿命长，不需要额外的溶剂，反应条件相对温和。
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公开(公告)号：US20210246093A1
公开(公告)日：2021-08-12
申请号：US17054894
申请日：2018-08-01
发明人： Youming NI , Wenliang ZHU , Zhongmin LIU , Yong LIU , Hongchao LIU , Xiangang MA , Shiping LIU
IPC分类号： C07C41/01 , B01J21/02 , B01J37/02 , B01J37/06 , B01J37/04 , B01J37/08 , B01J37/00 , B01J8/06
摘要： Provided is a method for directly preparing dimethyl ether by synthesis gas, the method comprises: the synthesis gas is passed through a reaction zone carrying a catalyst, and reacted under the reaction conditions sufficient to convert at least a portion of the raw materials to obtain the reaction effluent comprising dimethyl ether; and the dimethyl ether is separated from the reaction effluent, wherein the catalyst is zinc aluminum spinel oxide. In the present invention, only one zinc aluminum spinel oxide catalyst is used, which can make the synthesis gas to highly selectively form dimethyl ether, the catalyst has good stability and can be regenerated. The method of the present invention realizes the production of dimethyl ether in one step by the synthesis gas, and reduces the large energy consumption problem caused by step-by-step production.
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公开(公告)号：US20200231523A1
公开(公告)日：2020-07-23
申请号：US16647585
申请日：2017-09-29
发明人： Hongchao LIU , Wenliang ZHU , Zhongmin LIU , Yong LIU , Shiping LIU , Fuli WEN , Youming NI , Xiangang MA
IPC分类号： C07C29/154 , B01J19/18
摘要： A method for directly producing ethanol from syngas, carried out in three reaction zones, including: feeding a raw material containing syngas and dimethyl ether into a first reaction zone to contact with a solid acid catalyst, reacting; allowing the effluent from the first reaction zone to enter a second reaction zone to contact with a metal catalyst and react; separating the effluent from the second reaction zone to obtain product ethanol and by-product methanol; allowing by-product methanol to enter a third reaction zone to perform a dehydration reaction to obtain dimethyl ether, and allowing the obtained dimethyl ether to enter the first reaction zone to recycle the reaction. This provides a novel method for directly converting syngas to ethanol and an ethanol product can be directly produced by using syngas as a raw material.
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公开(公告)号：US20200270188A1
公开(公告)日：2020-08-27
申请号：US16763015
申请日：2017-11-21
发明人： Youming NI , Wenliang ZHU , Zhongmin LIU , Yong LIU , Zhiyang CHEN , Hongchao LIU , Xiangang MA , Shiping LIU
IPC分类号： C07C2/86 , B01J35/02 , B01J37/04 , B01J37/03 , B01J37/08 , B01J37/06 , B01J37/02 , B01J37/00 , B01J29/48 , B01J29/40 , B01J29/46 , B01J21/18
摘要： A method for directly preparing p-xylene from synthetic gas and aromatic hydrocarbon. The method includes contacting the feedstock containing synthetic gas and aromatic hydrocarbon excluding p-xylene with the catalyst in the reaction zone under reaction conditions sufficient to convert at least part of the feedstock to obtain a reaction effluent containing p-xylene; and separating p-xylene from the reaction effluent, where the catalyst includes a highly dispersed metal oxide material confined by an inert carrier, an acidic molecular sieve, and optionally at least one of graphite powder and dispersant, where in the highly dispersed metal oxide material confined by the inert carrier, the inert carrier is at least one of silicon oxide and alumina, and the content of the metal oxide in terms of metal is less than or equal to 10% by mass calculated based on the weight of the highly dispersed metal oxide material confined by the inert carrier.
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公开(公告)号：US20190262811A1
公开(公告)日：2019-08-29
申请号：US16343870
申请日：2017-08-22
发明人： Youming NI , Wenliang ZHU , Zhongmin LIU , Zhiyang CHEN , Yong LIU , Hongchao LIU , Xiangang MA , Shiping LIU
IPC分类号： B01J29/40 , B01J29/48 , B01J29/46 , B01J29/44 , B01J29/90 , B01J38/12 , B01J37/04 , B01J23/00 , B01J37/03 , C01B39/02 , C07C1/04
摘要： A catalyst for synthesizing aromatic hydrocarbons, a preparation method thereof and a method for synthesizing aromatic hydrocarbons by using the catalyst. The catalyst comprises acidic molecular sieve particles and zinc-aluminum composite oxide particles. The catalyst has relatively high selectivity to aromatic hydrocarbons, particularly BTX, stable performance, and a long single-pass life.
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