Hydrocarbon treating process having minimum gaseous effluent

Details Hydrocarbon treating process having minimum gaseous effluent Hydrocarbon treating process having minimum gaseous effluent

C - Chemistry, Metallurgy

10

G

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C10G 27/06 (2006.01) C10G 19/02 (2006.01) C10G 27/10 (2006.01)

Patent

CA 1232858

"HYDROCARBON TREATING PROCESS HAVING MINIMUM GASEOUS EFFLUENT" ABSTRACT A process is disclosed for treating hydrocarbon streams for the purpose of removing mercaptans and also converting the remaining mercaptans to disulfides which remain in the hydrocarbon stream being treated. The hydrocarbons rise through a contacting column counter- currently to a descending stream of an aqueous alkaline solution. A limited amount of an oxygen-containing gas is passed into an interme- diate point in the column thereby dividing it into an upper sweeten- ing section and a lower extraction section. The flow rate of the oxygen-containing stream is preferably low enough that any gas not consumed in the catalytic oxidation of mercaptans becomes dissolved in the hydrocarbon product stream, and preferably remains dissolved at atmospheric pressure.

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