Mineral oils: processes and products – Refining – Sulfur removal
Reexamination Certificate
2008-04-10
2011-12-27
Hill, Jr., Robert J (Department: 1774)
Mineral oils: processes and products
Refining
Sulfur removal
C208S20800M, C208S209000, C208S211000, C208S213000, C208S21600R, C208S217000, C208S243000, C423S210000, C423S242100, C423S244010, C423S244020, C423S244090, C423S244100
Reexamination Certificate
active
08083933
ABSTRACT:
A process for removing organic sulfur from a fuel gas stream that further contains light olefins by catalytic hydrodesulfurization to yield a treated fuel gas having an very low concentration of organic sulfur. The effluent of the catalytic hydrodesulfurization reactor may be cooled with a portion thereof being recycled and introduced along with the fuel gas stream that is charged to the hydrodesulfurization reactor. The remaining, unrecycled portion of the effluent may further be treated to remove the hydrogen sulfide that is yielded from by the hydrodesulfurization of the fuel gas stream.
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Hill, Jr. Robert J
McCaig Brian
Shell Oil Company
Stewart Charles W.
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