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:
Apr. 16, 1991
Filed:
Jul. 25, 1988
Toru Kitamura, Sodegaura, JP;
Yoshio Ohashi, Sodegaura, JP;
Masami Sekino, Sodegaura, JP;
Kenichi Murakawa, Sodegaura, JP;
Abstract
The present invention relates to a process for hydrogenating a heavy oil in a hydrogenation reactor of the suspension bed type by the use of catalyst particles and subjecting a catalyst slurry consisting of the used catalyst and the product oil withdrawn from the hydrogenation reactor to solid/liquid separation to recover the product oil and then regenerating by oxidation the used catalyst, the improvement being that the solid/liquid separation step includes at least a step of heat drying oil-containing catalyst particles. In accordance with the process of the present invention, the rate of recovery of oil in the catalyst slurry is high and the yield of product oil can be increased.