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:
Nov. 23, 1993
Filed:
Apr. 24, 1991
Applicant:
Inventor:
Gail M DeLong, Philadelphia, PA (US);
Assignee:
Sun Refining and Marketing Company, Philadelphia, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; C10G / ;
U.S. Cl.
CPC ...
208354 ; 203 75 ; 203 76 ; 203 78 ; 203 79 ; 203 82 ; 203 83 ; 203 84 ; 203 85 ; 203 99 ; 203D / ; 203D / ; 203 49 ; 208356 ; 208363 ;
Abstract
Where side stream distillate strippers are used in the distillation of hydrocarbons, the required size of the distillation column and the amount of stripping gas or vapor required are reduced by passing components stripped from the distillates through a plurality of strippers in series, rather than directly back to the distillation zone.