The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 2021
Filed:
Sep. 29, 2016
Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, CN;
Shanxi Luan Environmental Energy Development Co., Ltd., Changzhi, CN;
Zhengjia Li, Shanghai, CN;
Liangshu Zhong, Shanghai, CN;
Yuhan Sun, Shanghai, CN;
Fei Yu, Shanghai, CN;
Yunlei An, Shanghai, CN;
Xingzhen Qi, Shanghai, CN;
Tiejun Lin, Shanghai, CN;
Yaning Xiao, Shanghai, CN;
Bin Liu, Shanghai, CN;
Dongfei Wang, Shanghai, CN;
SHANGHAI ADVANCED RESEARCH INSTITUTE, CHINESE ACADEMY OF SCIENCES, Shanghai, CN;
SHANXI LUAN ENVIRONMENTAL ENERGY DEVELOPMENT CO., LTD., Changzhi, CN;
Abstract
A cobalt carbide-based catalyst for direct production of olefin from synthesis gas, a preparation method therefor and application thereof are disclosed. The method for preparing the catalyst comprises the following steps: 1) mixing a cobalt source with water, or mixing a cobalt source, an electron promoter and water to obtain a first solution; and mixing a precipitant with water to obtain a second solution; 2) adding the first solution and the second solution to water, or water and a structure promoter for precipitation, crystallizing, separating, drying and calcination; and 3) reducing a solid obtained in Step 2) in a reducing atmosphere, and then carbonizing in a carbonizing atmosphere. The prepared catalyst has high activity and high selectivity to olefins for direct production of olefins via syngas conversion.