Patent ID: 7727929
Filing Date: 2010-06-01
Classification: B01J,C10G

Abstract:
1. A catalyst composition for the selective hydrogenation of diolefins and the removal of arsenic from a hydrocarbon stream containing monoolefins and arsenic, comprising: a heat treated shaped mixture of a porous refractory oxide and from about 0.2 weight percent to 3 weight percent of a first Group VIII metal, wherein said heat treated shaped mixture has a material absence of a Group VIB metal and is overlaid with a second Group VIII metal such that the total amount of said first Group VIII metal and said second Group VIII metal in said composition exceeds 8 weight percent of said composition; and wherein said catalyst composition is capable of removing in excess of 50 weight percent of the arsenic present in said monoolefin-containing hydrocarbon stream, and converting diolefins in said monoolefin-containing stream such that the diolefin concentration in said stream is less than 0.5 weight percent, with less than 5 weight percent of monoolefin loss.