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. 01, 2019
Filed:
Dec. 27, 2017
Applicant:
Uop Llc, Des Plaines, IL (US);
Inventors:
James E. Rekoske, Glenview, IL (US);
Trung Pham, Mount Prospect, IL (US);
Stanley J. Frey, Palatine, IL (US);
Chunqing Liu, Arlington Heights, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 7/144 (2006.01); B01D 71/64 (2006.01); B01D 71/68 (2006.01); C07C 7/00 (2006.01); B01D 53/22 (2006.01); B01D 71/82 (2006.01); B01D 71/70 (2006.01); B01D 69/14 (2006.01); B01D 69/02 (2006.01); B01D 69/12 (2006.01); B01D 63/08 (2006.01); B01D 67/00 (2006.01);
U.S. Cl.
CPC ...
C07C 7/144 (2013.01); B01D 53/226 (2013.01); B01D 53/227 (2013.01); B01D 53/228 (2013.01); B01D 69/142 (2013.01); B01D 71/70 (2013.01); B01D 71/82 (2013.01); C07C 7/005 (2013.01); B01D 63/08 (2013.01); B01D 67/0013 (2013.01); B01D 69/02 (2013.01); B01D 69/12 (2013.01); B01D 69/148 (2013.01); B01D 71/64 (2013.01); B01D 71/68 (2013.01); B01D 2256/24 (2013.01); B01D 2257/306 (2013.01); B01D 2257/553 (2013.01); B01D 2257/7022 (2013.01); B01D 2317/025 (2013.01); B01D 2319/04 (2013.01); B01D 2325/022 (2013.01); B01D 2325/20 (2013.01); B01D 2325/36 (2013.01);
Abstract
A membrane process is provided for separating light olefins from light paraffins to produce a polymer grade light olefin product stream that is about 99.5 mol % ethylene or propylene. The process involves multiple stages to achieve the high purity product and provides for processing hydrocarbon streams that have differing concentrations of light olefins.