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. 22, 1985
Filed:
May. 07, 1982
Bahram Amirijafari, Golden, CO (US);
Herbert E Nuttall, Jr, Albuquerque, NM (US);
Other;
Abstract
A combination process disclosed utilizes a thermal (pyrolysis) operation (12) and solvent extraction operation (11) that operate simultaneously on an infeed of crushed tar sand (13). In a heat recovery operation (15) the solvent extraction operation receives waste heat from hot spent sand from the thermal operation to increase operating efficiency of the process. Makeup solvent is taken from the oil product derived from the extraction operation and recycled to be used in the solvent extraction operation. In a blending operation (16) the sand from both thermal and solvent extraction operations are blended in a sand mixer (34) to improve the quality of the sand discharged and the oil products from both operations are blended by a product mixer (31) to increase the viscosity of the final oil product.