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:
Jan. 08, 1980
Filed:
Sep. 15, 1975
Applicant:
Inventor:
Charles C Chapman, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585719 ; 585723 ;
Abstract
In the recovery of ethane and propane from an alkylation of an isoparaffin with an olefin to prevent buildup of ethane and propane in the system, the ethane and propane are taken as a side draw from the conventional HF stripper instead of being vented from the depropanizer or the fractionator overhead accumulator. Considerable ethane, propane and HF are thus saved and equipment costs reduced, especially because fractionator wall thickness can be reduced and because of the elimination of the equipment attendant the venting of the accumulator.