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:
Oct. 06, 1981
Filed:
Feb. 21, 1980
Applicant:
Inventors:
Robert P Sieg, Walnut Creek, CA (US);
Byron G Spars, Mill Valley, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ; C10B / ;
U.S. Cl.
CPC ...
208 / ; 201 31 ;
Abstract
Disclosed is an oil shale retorting process which is suitable for retorting lean oil shale containing less than 0.13 liters of oil per kilogram of shale. The raw shale is preferably retorted in a staged turbulent bed and the retorted hydrocarbonaceous vapors containing entrained shale fines are withdrawn therefrom. The fines are concentrated in a portion of the liquid product and fed to a combustion with the previously retorted shale to provide the heat required for retorting the raw shale.