Mineral oils: processes and products – Refining – Sulfur removal
Reexamination Certificate
2011-01-04
2011-01-04
Caldarola, Glenn (Department: 1797)
Mineral oils: processes and products
Refining
Sulfur removal
C208S213000, C208S230000, C208S235000, C208S250000, C208S20800M
Reexamination Certificate
active
07862708
ABSTRACT:
The present invention relates to a process for desulfurizing bitumen and other heavy oils such as low API gravity, high viscosity crudes, tar sands bitumen, or shale oils with alkali metal compounds under conditions to promote in-situ regeneration of the alkali metal compounds. The present invention employs the use of superheated water and hydrogen under conditions to improve the desulfurization and alkali metal hydroxide regeneration kinetics at sub-critical temperatures.
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Bearden, Jr. Roby
Billimoria Rustom M.
Savage David W.
Siskin Michael
Bordelon Bruce M.
Boyer Randy
Caldarola Glenn
ExxonMobil Research and Engineering Company
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