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. 29, 1986
Filed:
Mar. 09, 1984
Applicant:
Inventors:
Dennis A Duncan, Sharon, MA (US);
Herman Woebeke, Barnstable, MA (US);
Assignee:
Stone & Webster Engineering Corp., Boston, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10B / ; C10B / ; C10G / ;
U.S. Cl.
CPC ...
208 / ; 208 / ; 208127 ; 34 26 ; 201 29 ;
Abstract
A system is provided for recovering hydrocarbons from hydrocarbon-containing solids such as oil shale, tar sands or coal. The process includes preheating finely divided solids prior to introduction to a low residence time tubular reactor where a portion of the hydrocarbon is removed from the solids. The solids are then separated from the hydrocarbon product, stripped of residual hydrocarbons then transferred to a gasifier to burn the remaining entrapped hydrocarbon to serve as the heat source for the process.