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:
Apr. 08, 2025
Filed:
Oct. 29, 2021
China Petroleum & Chemical Corporation, Beijing, CN;
Sinopec Dalian Research Institute of Petroleum and Petrochemicals Co., Ltd., Liaoning, CN;
Kai Qiao, Liaoning, CN;
Feng Zhou, Liaoning, CN;
Xiuna Yang, Liaoning, CN;
Huixia Ma, Liaoning, CN;
Rui Jiang, Liaoning, CN;
Shumei Zhang, Liaoning, CN;
Ping Jin, Liaoning, CN;
Shaozhong Peng, Liaoning, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
SINOPEC DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS CO., LTD., Liaoning, CN;
Abstract
A process for producing propylene involves dehydration of isopropanol. The dehydration process includes a step of subjecting a starting material containing isopropanol to a dehydration reaction in the presence of a dehydration catalyst comprising alumina to produce a product containing propylene. The starting material has a water content of 0.1 to 10.0 wt % (relative to 100 wt % of the total mass of the starting material), and the product has a total content of C2 unsaturated impurities and C3-C4 unsaturated impurities of 80 ppm or less (relative to 100 wt % of the total mass of the product).