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:
Jul. 21, 1981
Filed:
Jun. 30, 1980
Jack W Roach, Oklahoma City, OK (US);
Kerr-McGee Refining Corporation, Oklahoma City, OK (US);
Abstract
A process for separating a solvent from a bituminous material by pressure reduction and steam stripping without carry-over of entrained bituminous material. The fluid-like phase of bituminous material and solvent is reduced in pressure and introduced into a steam stripper. The solvent vaporizes upon pressure reduction and a mist of fine bituminous material particles forms and becomes dispersed in the vaporized solvent. The vaporized solvent and associated mist is separated from the bituminous material in the stripper and is withdrawn from the steam stripper and introduced into a condenser. The solvent and steam from the stripper condense, a substantial portion of the mist of entrained particles solidifies and an emulsion of water and fluid-like bituminous material from the mist forms. The liquid stream is withdrawn from the condenser and introduced into a separator. The liquid stream separates in the separator into an upper fraction comprising solvent, a middle fraction comprising emulsion and a lower fraction comprising water and the solidified particles of bituminous material. The liquid solvent is removed by passage over a weir in the separator and recovered. The emulsion, water and solids can be removed from the base of the separator for disposal.