Mineral oils: processes and products – Refining – Sulfur removal
Patent
1988-11-17
1989-10-24
Myers, Helane
Mineral oils: processes and products
Refining
Sulfur removal
208189, 208203, 208208R, 208226, 208227, 208247, 423183, C10G 1902, C10G 1908
Patent
active
048759970
ABSTRACT:
A process for treating hydrocarbons containing mercaptans comprising the steps of contacting a first mercaptan-containing hydrocarbon stream with a first aqueous alkaline solution stream to form a mercaptide-rich aqueous alkaline solution stream and a reduced-mercaptan hydrocarbon stream; combining said mercaptide-rich aqueous alkaline solution stream with a second mercaptan-containing hydrocarbon stream and with oxygen to form a first mixture; oxidizing said mixture to form a second mixture of hydrocarbon, disulfides and aqueous alkaline solution; and separating said second mixture into a disulfide-containing hydrocarbon stream and a regenerated aqueous alkaline solution stream; whereby said second hydrocarbon stream is sweetened and said mercaptide-rich aqueous alkaline solution is regenerated simultaneously in the same step.
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Montana Refining Company
Myers Helane
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