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. 06, 1979
Filed:
May. 30, 1978
Applicant:
Inventor:
William V Bauer, New York, NY (US);
Assignee:
The Lummus Company, Bloomfield, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208255 ;
Abstract
In the catalytic hydrotreating of pyrolysis gasoline, the major portion of dienes present in the hydrotreated product concentrate in the C.sub.5 fraction. The C.sub.5 fraction is separated from a first portion of the hydrotreated effluent and a portion of said separated C.sub.5 fraction is combined with a second portion of the hydrotreated effluent as a combined recycle stream to the hydrotreating reaction. By combining a portion of the separated C.sub.5 fraction with the recycle hydrotreated effluent, the net C.sub.5 product recovered from the process has a diene value which is lower than that which would be obtained without the C.sub.5 recycle.