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:
May. 03, 1988
Filed:
Jul. 29, 1986
Applicant:
Inventors:
Eckard Wolowski, Muehleim, DE;
Rainer Loring, Bottrop, DE;
Frank Friedrich, Essen, DE;
Bernd Strobel, Essen, DE;
Assignee:
Ruhrkohle Aktiengesellschaft, Essen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ; C10G / ;
U.S. Cl.
CPC ...
208412 ; 208413 ; 208417 ;
Abstract
Procedure for hydrogenation of coal by means of liquid phase and fixed-bed catalyst hydrogenation whereby the head products of the high-temperature separator are led directly, and together with the entire high-pressure circuit gas, over a reactor with a rigidly installed catalyst; are separated from the exhaust products of this reactor by partial condensation of the cycle oil required for producing the coal paste and withdrawn from an intermediate separator; and are led again, together with the entire high-pressure circuit gas, over an additional reactor with a fixed-bed catalyst.