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:
Jun. 23, 1992
Filed:
May. 22, 1990
Applicant:
Inventors:
Paula J Bosserman, Riverside, CA (US);
Vernon T Taniguchi, Anaheim, CA (US);
Assignee:
Union Oil Company of California, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ; C10G / ; B01D / ;
U.S. Cl.
CPC ...
208 99 ; 208108 ; 2083 / ; 210635 ; 210656 ; 210657 ; 210659 ; 2101982 ;
Abstract
Fused polynuclear aromatic compounds (PNAs) are continuously removed from a recycle oil stream in a hydrocracking process. An adsorption bed removes the PNAs from the recycle oil, a desorbing reagent removes the PNAs from the bed, and a regenerating agent regenerates the bed, all steps being performed simultaneously and continuously.