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. 22, 2008
Filed:
Mar. 15, 2002
Makoto Inomata, Higashi Ibaraki-gun, JP;
Tsuyoshi Okada, Yokohama, JP;
Kozo Imura, Yokohama, JP;
Hajime Sasaki, Yokohama, JP;
Makoto Inomata, Higashi Ibaraki-gun, JP;
Tsuyoshi Okada, Yokohama, JP;
Kozo Imura, Yokohama, JP;
Hajime Sasaki, Yokohama, JP;
JGC Corporation, Tokyo, JP;
Abstract
The present invention is related to a method of subjecting a feed oil to a refining process. This method includes a fractional distillation stepin which a feed oil is separated into a distillate oil Mand a bottom oil Mby a distillation process, a separation step in which the bottom oil is separated into a bottom light oil and a residue, and a hydrorefining stepin which the obtained distillate oil Mand the bottom oil Mare subjected to hydrorefining in the presence of hydrogen and a catalyst. In the hydrorefining step, the bottom light oil (deasphalted oil M) is passed through a first catalyst layerof a hydrorefining unit providing a plurality of catalyst layers, andfilled with a hydrorefining catalyst, and a mixed oil comprising the distillate oil Mand the bottom light oil (deasphalted oil M) is passed through a downstream catalyst layerand subject to a hydrogenation process.