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:
Mar. 05, 1996
Filed:
Feb. 08, 1995
Jan Piskorz, Waterloo, CA;
Desmond St Radlein, Waterloo, CA;
Piotr Majerski, Waterloo, CA;
Donald S Scott, Waterloo, CA;
Natural Resources Canada, Ottawa, CA;
Abstract
A process is described for hydrotreating a heavy hydrocarbon oil containing a substantial portion of material which boils above 524.degree. C. to form lower boiling materials, which comprises adding to the heavy hydrocarbon oil as solvent a paraffinic, isoparaffinic or cyclic paraffinic hydrocarbon which is also hydrogen-rich and has a critical temperature of less than 500.degree. C. to thereby form a diluted feedstock mixture and subjecting said feedstock mixture to hydrotreating in the presence of activated carbon catalyst at a temperature and pressure substantially at or greater than the critical temperature and pressure of the solvent.