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:
Feb. 10, 2026
Filed:
Oct. 26, 2020
Petrochina Company Limited, Beijing, CN;
Beijing Orienda Instruments Co., Ltd., Beijing, CN;
Qing Cao, Beijing, CN;
Dawei Wen, Beijing, CN;
Shengbao He, Beijing, CN;
Yuan Xiu, Beijing, CN;
Lin Tian, Beijing, CN;
Dingzhong Yang, Beijing, CN;
Jing He, Beijing, CN;
Minna Dou, Beijing, CN;
Fei Chen, Beijing, CN;
Kunhong Liu, Beijing, CN;
Chenchen Li, Beijing, CN;
Huifeng Xue, Beijing, CN;
Jianming Wang, Beijing, CN;
PETROCHINA COMPANY LIMITED, Beijing, CN;
BEIJING ORIENDA INSTRUMENTS CO., LTD, Beijing, CN;
Abstract
The present disclosure provides an automatic separation apparatus for four fractions of heavy oil and a separation method thereof, wherein the apparatus includes a solvent reservoir tank (), a separation unit for four fractions of heavy oil () and a receiving apparatus (). The separation unit for four fractions of heavy oil () includes: a filter disc () having one end in communication with the solvent reservoir tank (), and the other end in communication with an inlet of a pre-column flow path switching valve (); a chromatographic column () having an inlet in communication with an outlet of the pre-column flow path switching valve (), and an outlet in communication with an inlet of a post-column flow path switching valve (). The receiving apparatus is in communication with an outlet of the post-column flow path switching valve ().