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. 21, 1987
Filed:
Sep. 26, 1985
Applicant:
Inventors:
Roland Rammler, Konigstein, DE;
Hans J Weiss, Oberursel, DE;
Ingo Dreher, Oberursel, DE;
Jorg Schmalfeld, Friedrichsdorf, DE;
Karl-Heinz Bietz, Friedberg, DE;
Assignee:
Metallgesellschaft Ag, Frankfurt am Main, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ; C10B / ;
U.S. Cl.
CPC ...
208407 ; 208410 ; 208411 ; 208427 ; 208428 ; 201 31 ;
Abstract
Oil-containing solids are dried and heated by contacting them in a drying zone with superheated steam admitted to the zone at a temperature in excess of 200.degree. C. The heated solids may be distilled to remove hydrocarbons therefrom and the resulting proceduce and/or combustion products of the distillation or other combustion products are used to heat a mixed vapor remainder, after separation of said carbon from the vapors formed during the drying, to the temperature of 1200.degree. C. for recirculation to the drying zone.