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:
May. 23, 2023
Filed:
Sep. 06, 2019
China Petroleum & Chemical Corporation, Beijing, CN;
Research Institute of Petroleum Processing, Sinopec, Beijing, CN;
Qing Yuan, Beijing, CN;
Junyi Mao, Beijing, CN;
Zhenxing Zhu, Beijing, CN;
Tao Huang, Beijing, CN;
Zhihai Zhao, Beijing, CN;
Yongxiang Li, Beijing, CN;
Lifeng Hu, Beijing, CN;
Xiaojin Tang, Beijing, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC, Beijing, CN;
Abstract
A process for separating an alkylation product includes introducing a liquid phase alkylation product from an alkylation reaction unit into a first heat-exchanger directly or after being pressurized with a pressure pump and heat-exchanged with a vapor phase stream from the column top of a high-pressure fractionating column, then into a second heat-exchanger and subsequently into the high-pressure fractionating column. The vapor phase stream from the column top of the high-pressure fractionating column is heat-exchanged with the liquid phase alkylation product to be separated, a liquid phase stream from the column bottom of the high-pressure fractionating column is introduced into a low-pressure fractionating column and subjected to fractionation under a condition of 0.2 MPa-1.0 MPa, a low-carbon alkane is obtained from the column top of the low-pressure fractionating column, and a liquid phase stream obtained from the column bottom of the low-pressure fractionating column is an alkylation oil product.