Patent ID: 7301062

Claim:
A process for the selective hydrogenation of alkyne and/or diene present in an olefin-containing hydrocarbon feed, the process comprising contacting the hydrocarbon feed containing at least about 10,000 ppm by weight alkyne and/or diene content with a catalyst in a first reaction zone under selective hydrogenation conditions, said catalyst including palladium and at least one Group IB metal incorporated into an inorganic support, wherein the support has a surface area of from about 2 to about 20 m 2 /g and a pore volume greater than about 0.4 cc/g, at least about 90% of the pore volume is contained in pores with pore diameters larger than about 500 Å, and the pore volume of the pores with a pore diameter from about 500 Å to about 1,000 Å comprises from about 1% to about 2% of the total pore volume.