Process for upgrading tar sand bitumen

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Publication Type patent
Author Bartholic, David B.; Reagan, William J.
Title Process for upgrading tar sand bitumen
Date 1989-02-14
Description A method for upgrading a concentrate of tar sands bitumen containing colloidal clay in which solvent-diluted bitumen is contacted for a short time in a riser with hot attrition-resistant substantially catalytically inert fluidizable microspheres, causing a selective vaporization of the lighter high hydrogen content components of the bitumen. A portion of the heavier asphaltenes and most of the components which contain metals, sulfur and nitrogen remain on the attrition-resistant microspheres. Colloidal clay in the bitumen feed also deposits on the microspheres instead of being carried over with the vaporized hydrocarbon product. The contact material, with deposit, is passed to a burner provided with high velocity air jets which attrites the colloidal clay away from the microspheres and the material removed by attrition is recovered. The heated microspheres are reintroduced into the riser for further contact with incoming diluted bitumen charge.
Publisher United States Patent and Trademark Office
Subject tar sand bitumen concentrate; tar sand containing colloidal clay; colloidal clay; metal impurities in tar sand bitumen; patent
Bibliographic Citation Bartholic, D. B., Reagan, W. J. (1989). Process for upgrading tar sand bitumen. United States Patent 4,804,459. United States Patent and Trademark Office.
Relation Has Part United States Patent 4,804,459
ARK ark:/87278/s6hf0ttb
Setname ir_eua
Date Created 2015-01-28
Date Modified 2021-05-06
ID 214348
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