公开(公告)号：US11225443B2

公开(公告)日：2022-01-18

申请号：US16763015

申请日：2017-11-21

申请人： DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES

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 ,  B01J21/18 ,  B01J29/40 ,  B01J29/46 ,  B01J29/48 ,  B01J35/02 ,  B01J37/00 ,  B01J37/02 ,  B01J37/03 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08

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.

公开(公告)号：US11014076B2

公开(公告)日：2021-05-25

申请号：US16343870

申请日：2017-08-22

申请人： Dalian Institute of Chemical Physics, Chinese Academy of Sciences

发明人： Youming Ni ,  Wenliang Zhu ,  Zhongmin Liu ,  Zhiyang Chen ,  Yong Liu ,  Hongchao Liu ,  Xiangang Ma ,  Shiping Liu

IPC分类号： B01J29/06 ,  B01J29/40 ,  B01J23/00 ,  B01J29/44 ,  B01J29/46 ,  B01J29/48 ,  B01J29/90 ,  B01J37/03 ,  B01J37/04 ,  B01J38/12 ,  C01B39/02 ,  C07C1/04 ,  B01J38/14 ,  B01J21/06 ,  B01J21/04 ,  B01J35/02 ,  B01J23/72 ,  B01J23/26 ,  B01J37/00 ,  B01J35/00 ,  B01J38/02 ,  B01J23/44 ,  B01J23/06 ,  B01J23/90 ,  B01J29/76 ,  B01J29/08 ,  B01J29/22 ,  B01J29/16 ,  B01J29/18 ,  B01J29/26 ,  B01J29/24 ,  B01J29/70 ,  B01J29/78 ,  B01J29/74 ,  B01J29/72

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.

公开(公告)号：US10927051B2

公开(公告)日：2021-02-23

申请号：US16344375

申请日：2017-08-22

申请人： Dalian Institute of Chemical Physics, Chinese Academy of Sciences

发明人： Youming Ni ,  Wenliang Zhu ,  Zhongmin Liu ,  Zhiyang Chen ,  Yong Liu ,  Hongchao Liu ,  Xiangang Ma ,  Shiping Liu

IPC分类号： C07C1/22 ,  B01J29/40 ,  C07C1/20

摘要： Disclosed is a method for preparing aromatic hydrocarbons, particularly relates to the preparation of the aromatic hydrocarbons by passing methanol and carbon monoxide through a reactor loaded with an acidic ZSM-5 molecular sieve catalyst containing no metal additive under reaction conditions. Compared with the prior art, the method provided by the present invention can improve and stabilize the selectivity to aromatic hydrocarbons, particularly BTX, by adding carbon monoxide in methanol aromatization, and also prolongs the single-pass life of the catalyst. The performance of an inactivated catalyst is not significantly degraded after repeated regenerations. Furthermore, the catalyst preparation process omits the step of adding a metal additive, so that not only the process is simplified, but also costs are greatly reduced, and environmental protection is facilitated.

公开(公告)号：US10815162B2

公开(公告)日：2020-10-27

申请号：US16763026

申请日：2018-10-29

申请人： DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES

发明人： Youming Ni ,  Wenliang Zhu ,  Zhongmin Liu ,  Yong Liu ,  Zhiyang Chen ,  Hongchao Liu ,  Xiangang Ma ,  Shiping Liu

IPC分类号： C07C1/04 ,  B01J35/02 ,  B01J37/04 ,  B01J37/08 ,  B01J37/03 ,  B01J37/00 ,  B01J37/06 ,  B01J37/02 ,  B01J29/40 ,  B01J29/48 ,  B01J29/46 ,  B01J21/18

摘要： A method for preparing aromatics from syngas, which includes a) contacting a raw material stream containing syngas with a catalyst in a reaction zone under reaction conditions sufficient to convert at least part of the raw material to obtain a reaction effluent; b) separating the reaction effluent to obtain at least a recycle stream containing gas-phase hydrocarbons having 1 to 4 carbon atoms and unconverted syngas and a liquid stream containing hydrocarbons having 5 or more carbon atoms; c) returning the recycle stream to the reaction zone; and d) separating aromatic products from the liquid stream, wherein the catalyst includes at least one of an inert carrier-confined highly dispersed metal oxide material, an acidic molecular sieve, and, optionally, graphite powder and a dispersant.