Mineral oils: processes and products – Refining – Metal contaminant removal
Patent
1987-06-25
1989-02-14
Davis, Curtis R.
Mineral oils: processes and products
Refining
Metal contaminant removal
208177, 208127, 208435, C10G 2904
Patent
active
048044598
ABSTRACT:
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.
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Haseltine et al., U.S. application Ser. No. 383,160, filed May 28, 1982 now abandoned.
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Bartholic U.S. patent application Ser. No. 06/662,666 filed Oct. 19, 1984, now abandoned.
Bartholic David B.
Reagan William J.
Davis Curtis R.
Engelhard Corporation
Moselle Inez L.
Myers Helane
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