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:
Sep. 08, 2026
Filed:
Sep. 23, 2022
China Petroleum & Chemical Corporation, Beijing, CN;
Sinopec Research Institute of Petroleum Processing Co., Ltd., Beijing, CN;
Zhaolin Fu, Beijing, CN;
Zhiping Tao, Beijing, CN;
Enhui Xing, Beijing, CN;
Yibin Luo, Beijing, CN;
Xingtian Shu, Beijing, CN;
Jie Zhao, Beijing, CN;
Rui Yan, Beijing, CN;
Dandan Jia, Beijing, CN;
Zhongpeng Zhu, Beijing, CN;
Weiping Zheng, Beijing, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
SINOPEC RESEARCH INSTITUTE OF PETROLEUM PROCESSING CO., LTD., Beijing, CN;
Abstract
A continuous process for preparing exo-THDCPD by isomerization of endo-THDCPD includes the step of passing endo-THDCPD and hydrogen gas successively through a first reaction zone filled with a hydrogenation protectant and a second reaction zone filled with an isomerization catalyst to perform a hydroisomerization reaction so as to obtain exo-THDCPD, wherein the hydrogenation protectant is a supported metal hydrogenation catalyst, and the isomerization catalyst is a metal-modified molecular sieve catalyst. The process converts endo-THDCPD to exo-THDCPD, with a conversion of greater than 86% and a target product selectivity of greater than 94%.