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. 20, 2020
Filed:
Sep. 22, 2015
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventors:
Isa K. Mbaraka, Prospect, KY (US);
William L. Jackson, Jr., Baton Rouge, LA (US);
Martin A. Cogswell, Camlachie, CA;
Mark Siddoway, Friendswood, TX (US);
Brien A. Stears, Friendswood, TX (US);
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25J 3/02 (2006.01); C07C 7/00 (2006.01); C07C 7/09 (2006.01); C07C 7/04 (2006.01);
U.S. Cl.
CPC ...
F25J 3/0219 (2013.01); C07C 7/005 (2013.01); C07C 7/04 (2013.01); C07C 7/09 (2013.01); F25J 3/0233 (2013.01); F25J 3/0238 (2013.01); F25J 3/0242 (2013.01); F25J 2200/02 (2013.01); F25J 2200/74 (2013.01); F25J 2205/04 (2013.01); F25J 2210/02 (2013.01); F25J 2210/12 (2013.01); F25J 2215/62 (2013.01); F25J 2215/64 (2013.01); F25J 2270/02 (2013.01); F25J 2270/04 (2013.01);
Abstract
A process for recovery of Cand Ccomponents in an on-purpose propylene production system includes utilizing a packed rectifier with a countercurrent stream to strip Cand Ccomponents from a combined de-ethanizer overhead lights vapor and cracked gas vapor stream.