Title:
METHOD FOR DIRECTLY PREPARING DIMETHYL ETHER BY SYNTHESIS GAS
Document Type and Number:
WIPO Patent Application WO/2019/218490
Kind Code:
A1
Abstract:
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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Inventors:
NI YOUMING (CN)
ZHU WENLIANG (CN)
LIU ZHONGMIN (CN)
LIU YONG (CN)
LIU HONGCHAO (CN)
MA XIANGANG (CN)
LIU SHIPING (CN)
ZHU WENLIANG (CN)
LIU ZHONGMIN (CN)
LIU YONG (CN)
LIU HONGCHAO (CN)
MA XIANGANG (CN)
LIU SHIPING (CN)
Application Number:
PCT/CN2018/098069
Publication Date:
November 21, 2019
Filing Date:
August 01, 2018
Export Citation:
Assignee:
DALIAN INST CHEM & PHYSICS CAS (CN)
International Classes:
C07C41/09; C07C29/153; C07C31/04; C07C43/04
Foreign References:
| CN104114274A | 2014-10-22 | |||
| CN105148912A | 2015-12-16 | |||
| EP0409086A1 | 1991-01-23 | |||
| US20130211147A1 | 2013-08-15 |
Other References:
See also references of EP 3795556A4
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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