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:
Aug. 24, 2021
China Petroleum & Chemical Corporation, Beijing, CN;
Research Institute of Petroleum Processing, Sinopec, Beijing, CN;
Siyuan Qie, Beijing, CN;
Wencheng Tang, Beijing, CN;
Ming Zhao, Beijing, CN;
Longsheng Tian, Beijing, CN;
Siliang Gao, Beijing, CN;
Weiwei Pang, Beijing, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC, Beijing, CN;
Abstract
A composite adsorbent for separating ethylbenzene from C8 arene by an adsorption distillation contains 1-50 mass % of a xylene adsorbent and 50-99 mass % of a carrier liquid. The carrier liquid is selected from one or two of alkane, aryl-substituted alkane, decalin and alkyl-substituted decalin. The alkane is C10-C26 alkane, and the aryl-substituted alkane is C13-C16 aryl-substituted alkane. The composite adsorbent can increase the volatility of ethylbenzene relative to other C8 arenes and thus can separate a high-purity ethylbenzene from C8 arene by the adsorption distillation.