Mineral oils: processes and products – Refining – Sulfur removal
Reexamination Certificate
2008-01-01
2008-01-01
Toomer, Cephia D. (Department: 1714)
Mineral oils: processes and products
Refining
Sulfur removal
C208S240000
Reexamination Certificate
active
07314545
ABSTRACT:
This invention is a method of purifying fuels containing organosulfur impurities. The fuel is oxidized with an organic hydroperoxide in the presence of an oxidation catalyst to form a sulfone product, followed by extraction of the sulfone product by solid-liquid or liquid-liquid extraction. The fuel is then contacted with a decomposition catalyst to remove the residual organic hydroperoxide from the fuel.
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R. Castillo et al.,J. Catalysis 161(1996) 524.
Grey Roger A.
Karas Lawrence J.
Lynch Michael W.
Carroll Kevin M.
Lyondell Chemical Technology, L.P.
Toomer Cephia D.
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