Patent ID: 7141709
Filing Date: 2006-11-28
Classification: C07C

Abstract:
1. A method of producing monoolefins, comprising: (a) contacting an olefin stream with a polar solvent and a high boiling additive such that a highly unsaturated hydrocarbon in the olefin stream becomes dissolved in the polar solvent and the high boiling additive; and (b) contacting the polar solvent and the high boiling additive with a hydrogenation catalyst comprising palladium and silver in the presence of hydrogen at conditions effective to hydrogenate the highly unsaturated hydrocarbon to a monoolefin, wherein the polar solvent comprises a compound selected from the group consisting of N-methylpyrrolidone, formamide, N-methylformamide, N-ethylformamide, N-phenylformamide, N,N-dimethylformamide, N,N-diethylformamide, N,N-diphenylformamide, sulfolane, n-formyl morpholine, glycerol, triethylene, glycerol, tetraethylene glycerol, and combinations thereof.