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. 08, 2019
Filed:
Mar. 31, 2017
Applicant:
Uop Llc, Des Plaines, IL (US);
Inventors:
Richard K. Hoehn, Mount Prospect, IL (US);
Donald A. Eizenga, Elk Grove Village, IL (US);
Assignee:
UOP LLC, Des Plaines, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C10G 49/22 (2006.01); C10G 67/02 (2006.01); C10G 47/36 (2006.01); C10G 47/00 (2006.01);
U.S. Cl.
CPC ...
C10G 49/22 (2013.01); C10G 47/00 (2013.01); C10G 47/36 (2013.01); C10G 67/02 (2013.01);
Abstract
A process and apparatus removes HPNA's from a fractionated bottoms stream from a reboiled product fractionation column that obtains heat from a reboiler. HPNA's are removed from the fractionated bottoms stream by stripping it with an inert gas. The HPNA lean stream may be fed back to the reboiled product fractionation column at the same elevation as the feed stream to the column.