Mineral oils: processes and products – Refining
Reexamination Certificate
2008-12-30
2011-12-20
Warden, Jill (Department: 1771)
Mineral oils: processes and products
Refining
Reexamination Certificate
active
08080154
ABSTRACT:
A process to upgrade heavy oil and convert the heavy oil into lower boiling hydrocarbon products is provided. The process employs a catalyst slurry comprising catalyst particles with an average particle size ranging from 1 to 20 microns. In the upgrade process, spent slurry catalyst in heavy oil is generated as an effluent stream, which is subsequently recovered/separated from the heavy oil via membrane filtration. In one embodiment, filtration sedimentation is used for the separation of the heavy oil from the catalyst particles. Valuable metals can be recovered from catalyst particles for subsequent re-use in a catalyst synthesis unit, generating a fresh slurry catalyst.
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Boyer Randy
Chevron U.S.A. Inc.
Warden Jill
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