Title:
METHOD FOR PREPARING LOW-CARBON OLEFINS FROM SYNTHESIS GAS
Document Type and Number:
WIPO Patent Application WO/2020/073598
Kind Code:
A1
Abstract:
Disclosed in the present application is a method for preparing low-carbon olefins from synthesis gas, comprising: introducing feed gas containing synthesis gas into a reaction zone to first contact a catalyst bed containing a catalyst I and then contact a catalyst bed containing a catalyst II, so as to prepare low-carbon olefins, wherein the catalyst I is selected from at least one of catalysts for preparing dimethyl ethers from the synthesis gas, and the catalyst II is selected from at least one of catalysts for preparing low-carbon olefins from the dimethyl ethers. The double-layer catalyst used in the present application enables the synthesis gas to generate low-carbon olefins with high selectivity, and the catalyst has good stability. The double-layer catalyst is more favorable for chemical heat removal and regeneration of molecular sieve components. The double-layer catalyst has lower carbon dioxide selectivity, and is thus beneficial to reduce carbon emission.
Inventors:
NI YOUMING (CN)
ZHU WENLIANG (CN)
LIU ZHONGMIN (CN)
LIU YONG (CN)
ZHU WENLIANG (CN)
LIU ZHONGMIN (CN)
LIU YONG (CN)
Application Number:
PCT/CN2019/077834
Publication Date:
April 16, 2020
Filing Date:
March 12, 2019
Export Citation:
Assignee:
DALIAN INST CHEM & PHYSICS CAS (CN)
International Classes:
C07C1/04; B01J29/40; C07C11/02
Foreign References:
| CN102516004A | 2012-06-27 | |||
| CN103012042A | 2013-04-03 | |||
| CN1067878A | 1993-01-13 |
Attorney, Agent or Firm:
PERIODIC LAW FIRM (CN)
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