Title:
METALLIC COPPER CATALYST, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/035697
Kind Code:
A1
Abstract:
The present application belongs to the technical field of the preparation of light olefins from syngas, and relates to a metallic copper catalyst, and a preparation method therefor and the use thereof. The method for preparing the metallic copper catalyst provided in the present application comprises the following steps: dissolving a copper salt and a zinc salt in an inorganic acid solution, and then adding a Cu-SSZ-13 molecular sieve, and heating and stirring same to obtain a mixed liquid containing a modified Cu-SSZ-13 molecular sieve; mixing an aluminum salt with a solvent to obtain an aluminum salt solution, then adding an alkali solution and the mixed liquid containing the modified Cu-SSZ-13 molecular sieve to the aluminum salt solution for a co-precipitation reaction, and aging, filtering and washing the reaction solution to obtain a catalyst precursor; and dissolving an aluminum salt and a silica sol in water, adding the catalyst precursor, controlling the pH value of the mixed solution, then grinding, drying and roasting the mixed solution, and subjecting same to a heating and passivating treatment in an oxygen-containing atmosphere to obtain a metallic copper catalyst. The catalyst provided in the present application can effectively improve the conversion rate of carbon monoxide and the selectivity of light olefins.
Inventors:
HE ZHONG (CN)
WANG QI (CN)
LIU RONG (CN)
LI XU (CN)
CHENG ACHAO (CN)
LIU LIANBO (CN)
GAO SHIWANG (CN)
WANG QI (CN)
LIU RONG (CN)
LI XU (CN)
CHENG ACHAO (CN)
LIU LIANBO (CN)
GAO SHIWANG (CN)
Application Number:
PCT/CN2022/096999
Publication Date:
March 16, 2023
Filing Date:
June 02, 2022
Export Citation:
Assignee:
HUANENG CLEAN ENERGY RES INST (CN)
HUANENG POWER INT INC (CN)
HUANENG POWER INT INC (CN)
International Classes:
B01J23/80; B01J29/76; B01J37/03; B01J37/08; B01J37/34; C07C1/04; C07C11/02
Domestic Patent References:
| WO2020060591A1 | 2020-03-26 |
Foreign References:
| CN113600199A | 2021-11-05 | |||
| CN106660894A | 2017-05-10 | |||
| CN106565406A | 2017-04-19 |
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD. (CN)
Download PDF: