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:
Jun. 16, 2020
Filed:
Aug. 08, 2018
Uop Llc, Des Plaines, IL (US);
Chunqing Liu, Arlington Heights, IL (US);
Lubo Zhou, Inverness, IL (US);
Stanley J. Frey, Palatine, IL (US);
Gregory R. Werba, Arlington Heights, IL (US);
Carl W. Liskey, Chicago, IL (US);
Simon E. Albo, Evanston, IL (US);
Trung Pham, Mount Prospect, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
A process is provided for separation of light olefins and paraffins and particular for the separation of propylene and propane comprising sending at least one olefin/paraffin stream to a distillation column and a membrane unit to produce an olefin stream comprising at least 92 mol % olefin. In an embodiment of the invention where the membrane unit is placed downstream from the column which can produce propylene streams at polymer grade of over 99.5 mol % propylene.