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:
Aug. 30, 1988
Filed:
Dec. 18, 1986
Applicant:
Inventors:
Robert J Feldman, Passaic, NJ (US);
James M Chen, Edison, NJ (US);
Andrei Rhoe, Wyckoff, NJ (US);
Roger P Van Driesen, Titusville, NJ (US);
C Bertil Fogman, Kinnelon, NJ (US);
Donald P Satchell, Summit, NJ (US);
Assignee:
Lummus Crest, Inc., Bloomfield, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208 85 ; 208 86 ; 208 87 ; 208 88 ; 208106 ; 208177 ;
Abstract
Prior to upgrading a viscous feed by visbreaking, at least a portion of the feed is treated to remove a heavy phase in specified amounts, whereby the severity of the visbreaking may be increased. The Shell Hot Filtration number of the visbreaking product is reduced by at least 75%, compared to visbreaking of untreated feed at some severity.