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. 07, 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;
Xin Wang, Beijing, CN;
Mingyuan He, Beijing, CN;
Youxin Sha, Beijing, CN;
Xuhui Bai, 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 from hydrocarbons, includes the steps of conducting catalytic conversion of an olefin-rich feedstock in a first reaction zone of a fluidized catalytic conversion reactor, contacting a heavy feedstock with the reaction stream from the first reaction zone in a second reaction zone of the reactor for reaction, separating the effluent from the reactor, and recycling the resulting olefin-rich stream to the first reaction zone for further reaction. The method can improve the utilization rate of petrochemical resources and shows high yield and selectivity of ethylene, propylene and butylene.