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:
Jan. 15, 1980
Filed:
Mar. 28, 1978
David S Mitchell, San Rafael, CA (US);
David R Sageman, San Rafael, CA (US);
Chevron Research Company, San Francisco, CA (US);
Abstract
A continuous process is disclosed for the retorting of oil shale or other similar hydrocarbon containing solids. Heat carrier particles at an elevated temperature are introduced into an upper portion of a retort and pass downwardly therethrough, fluidized by an upwardly flowing non-oxidizing gas introduced in a lower portion of the retort. The hydrocarbon-containing solids are introduced into an intermediate portion of the retort; a first portion thereof being entrained by the gas and flowing upwardly through the retort and a second portion thereof being fluidized by the gas and flowing downwardly through said retort. Retorted fluidized solids and heat carrier particles are removed from a lower portion of the retort and a product stream of hydrocarbon vapors mixed with the entrained retorted solids and fluidizing gas is recovered overhead.