Title:
CATALYST, AND METHOD FOR DIRECT CONVERSION OF SYNGAS TO PREPARE LIGHT OLEFINS
Document Type and Number:
WIPO Patent Application WO/2018/219365
Kind Code:
A1
Abstract:
A catalyst and a method for direct conversion of syngas to prepare light olefins. Using syngas as a raw material for reaction, a conversion reaction is conducted on a fixed bed or on a mobile bed. The catalyst is a composite catalyst A+B and is created by compounding together catalyst A and catalyst B by means of mechanical mixing. The active ingredient in catalyst A is active metal oxide, catalyst B is an oxide-loaded molecular sieve. The vector is one or two or more of hierarchical porous Al2O3, SiO2, TiO2, ZrO2, CeO2, MgO, and Ga2O3. The molecular sieve is one or two of a CHA structure and an AEI structure, the load capacity of the molecular sieve being 4%-45% wt. The weight ratio between the active ingredient in catalyst A and catalyst B is in the range of 0.1-20, and preferably 0.3-5. The reaction process has high light olefin selectivity, the sum of the selectivity of the light olefins comprising ethylene, propylene, and butene being as high as 50-90%. Additionally, the selectivity of the byproduct methane is lower than 15%. The invention has excellent prospects for application.
Inventors:
PAN XIULIAN (CN)
JIAO FENG (CN)
BAO XINHE (CN)
JIAO FENG (CN)
BAO XINHE (CN)
Application Number:
PCT/CN2018/098379
Publication Date:
December 06, 2018
Filing Date:
August 02, 2018
Export Citation:
Assignee:
DALIAN INST CHEM & PHYSICS CAS (CN)
International Classes:
B01J29/83; B01J21/04; B01J21/06; B01J21/08; B01J21/10; B01J23/06; B01J23/26; B01J23/34; B01J29/85; B01J35/10; B01J37/04; C07C11/04
Domestic Patent References:
| WO2015084575A2 | 2015-06-11 |
Foreign References:
| CN106311317A | 2017-01-11 | |||
| CN106345514A | 2017-01-25 | |||
| JP2017087204A | 2017-05-25 | |||
| CN1083415A | 1994-03-09 | |||
| CNZL03109585A |
Other References:
JIAO ET AL., SCIENCE, vol. 351, 2016, pages 1065 - 1068
See also references of EP 3632557A4
See also references of EP 3632557A4
Attorney, Agent or Firm:
DALIAN EAST PATENT AGENT LTD. (CN)
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