公开(公告)号：US20200231523A1

公开(公告)日：2020-07-23

申请号：US16647585

申请日：2017-09-29

Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES

Inventor： Hongchao LIU ,  Wenliang ZHU ,  Zhongmin LIU ,  Yong LIU ,  Shiping LIU ,  Fuli WEN ,  Youming NI ,  Xiangang MA

IPC: C07C29/154 ,  B01J19/18

Abstract: 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.

公开(公告)号：US20200239401A1

公开(公告)日：2020-07-30

申请号：US16647174

申请日：2017-09-29

Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES

Inventor： Hongchao LIU ,  Wenliang ZHU ,  Zhongmin LIU ,  Yong LIU ,  Shiping LIU ,  Fuli WEN ,  Youming NI ,  Xiangang MA

IPC: C07C67/36 ,  C07C51/10 ,  B01J8/04 ,  B01J8/06 ,  B01J23/889 ,  B01J23/00 ,  B01J29/40 ,  B01J29/18 ,  B01J29/70

Abstract: 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.