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. 14, 2025
Filed:
Jun. 24, 2021
China Petroleum & Chemical Corporation, Beijing, CN;
Sinopec Research Institute of Petroleum Processing Co., Ltd., Beijing, CN;
Youhao Xu, Beijing, CN;
Yanfen Zuo, Beijing, CN;
Xingtian Shu, Beijing, CN;
Xieqing Wang, Beijing, CN;
Yibin Luo, Beijing, CN;
Yunpeng Zhang, Beijing, CN;
Yueyang Han, Beijing, CN;
Lingyin Du, Beijing, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
SINOPEC RESEARCH INSTITUTE OF PETROLEUM PROCESSING CO., LTD., Beijing, CN;
Abstract
A fluidized catalytic conversion method for producing light olefins includes the following steps: 1) introducing an olefin-rich feedstock into a fluidized catalytic conversion reactor, and contacting with a catalyst having a temperature of 650° C. or higher for reaction; 2) separating the reaction product vapor obtained by the reaction to obtain a stream comprising C5+ olefins; and 3) recycling at least a part of the stream comprising C5+ olefins to step 1) for further reaction. The fluidized catalytic conversion method can effectively improve the yield of light olefins, improve the selectivity and improve the ethylene/propylene ratio of the product.