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:
Mar. 19, 1985
Filed:
Oct. 31, 1983
Applicant:
Inventors:
Assignee:
Kraftwerk Union Aktiengesellschaft, Mulheim, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ; C10B / ; C10B / ;
U.S. Cl.
CPC ...
208 / ; 201 38 ; 201 39 ; 202 99 ;
Abstract
A process for extracting hydrocarbons from oil shale comprising the steps of subjecting oil shale under superatmospheric pressure in the presence of hydrogen and steam, to low temperature hydrogenating distillation; separating the resulting fluid distillation mixture into liquid and gaseous products; and returning water and hydrogen separated from the fluid distillation mixture to the low temperature distillation; in which: