Patent ID: 6576586
Filing Date: 2003-06-10
Classification: B01J,C10G

Abstract:
A selective hydrogenation catalyst for pyrolysis gasoline, wherein the catalyst mainly consists of a support of &dgr;, &agr; mixed alumina covered by palladium and alkali metal and/or alkaline-earth metal which are distributed on the support surface, the support having 0.5 to 0.9 ml/g of specific pore volume, wherein 40 to 200 Ã¥ pores account for more than 85% of the total pore volume, the specific surface area is 70 to 140 m2/g, and &agr; crystal structure in the alumina support is 0.1 to 5% based on the weight percentage of &dgr;, &agr; mixed alumina support, the catalyst comprising palladium in amount of 0.05 to 0.4 wt %, alkali metal and/or alkaline-earth metal in amount of 0.05 to 2.0 wt %.