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. 09, 1996
Filed:
Aug. 03, 1994
Applicant:
Inventors:
Assignee:
NKK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208408 ; 208400 ; 208428 ; 208434 ;
Abstract
A method of coal liquefaction comprising the steps of: (a) producing a coal slurry from a pulverized coal and a solvent; (b) compressing a coke oven gas to prepare a compressed gas; (c) reacting the coal slurry with the compressed gas in a reactor under a high pressure and high temperature condition to form a liquefied product; (d) separating the liquefied product into a used gas and a liquefied slurry; and (e) distillating the liquefied slurry to form a liquefied oil and a solvent refined coal.