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. 12, 1988
Filed:
Dec. 22, 1983
Applicant:
Inventors:
Yoichi Kageyama, Yokohama, JP;
Hironori Kageyama, Yokohama, JP;
Jun Imai, Sagamihara, JP;
Yukio Nakako, Takarazuka, JP;
Assignees:
Mitsubishi Chemical Industries Ltd., Tokyo, JP;
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Idemitsu Kosan Company Limited, Tokyo, JP;
Asia Oil Company Limited, Tokyo, JP;
Nippon Brown Coal Liquefaction Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ; C10G / ;
U.S. Cl.
CPC ...
208423 ; 208422 ; 208142 ; 208143 ;
Abstract
A method for hydrogenating a solvent-refined coal by heating it under hydrogen pressure in a fixed bed, characterized in that a solvent-refined coal fraction containing no substantial amount of preasphaltene is used as the solvent-refined coal.