C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/15
C10G 29/04 (2006.01) B01J 20/10 (2006.01) C01G 25/00 (2006.01) C10G 25/08 (2006.01)
Patent
CA 1291435
PROCESS FOR UPGRADING TAR SAND BITUMEN ABSTRACT OF THE DISCLOSURE A method for upgrading a concentrate of tar sands bitumen containing fine mineral matter and optionally coarse mineral matter in which solvent-diluted bitumen is contacted for a short time in a riser with hot attrition-resistant substantially catalytically inert acid-resistant fluidizable particles, causing a selective vaporization of the lighter high hydrogen content components of the bitumen. The preferred particles are composed of silica-alumina, most preferably a mixture of mullite and crystalline silica or mullite, crystalline silica and an acid-resistant form of alumina. A portion of the heavier asphaltenes and most of the components which contain metals, sulfur and nitrogen remain on the attrition-resistant fluidizable particles. Fine mineral matter is the bitumen feed also deposits on the fluidized particles instead of being carried over with the vaporized hydrocarbon product. The contact material, with deposit, is contacted with a solution of acid to remove the deposit of mineral matter and deposited metals without decomposing the particles of contact material. The heated particles of contact material are reintroduced into the riser for further contact with incoming diluted bitumen charge.
522260
Bartholic David B.
Jarnagin L. Alan
Pitts Frank
Reagan William J.
Schultz William R.
Engelhard Corporation
Sim & Mcburney
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