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:
Jul. 14, 1992
Filed:
Oct. 09, 1990
Yoichi Kageyama, Isehara, JP;
Iwao Yamamoto, Machida, JP;
Takahisa Yamaura, Kawasaki, JP;
Jun Imai, Sagamihara, JP;
Mitsubishi Kasei Corporation, Tokyo, JP;
Kabushiki Kaisha Kobe Seiko Sho, Hyogo, JP;
Idemitsu Kosan Company Limited, Tokyo, JP;
Cosmo Oil Co., Ltd., Tokyo, JP;
Abstract
A process for producing a liquefied coal oil by a two step hydrogenation reaction of coal, which comprises subjecting coal to a first hydrogenation and subjecting at least a part of the reaction product of the first hydrogenation to a second hydrogenation, wherein the second hydrogenation is conducted in the presence of an alkali metal compound and/or an alkaline earth metal compound and a catalyst carrying a metal of Group VI-A and a metal of Group VIII of the Periodic Table.