Catalytic hydrogenation process and a catalyst for

专利名称：Catalytic hydrogenation process and a

catalyst for use in the process

发明人：Canh Nguyen Than,Blaise Didillon,Patrick

Sarrazin,Charles Cameron

申请号：US08/466685申请日：19950606公开号：US05648576A公开日：19970715

摘要：A process for the selective hydrogenation in the gas phase of acetylenecompounds containing 2 or 3 carbon atoms to the corresponding ethylene compounds inthe presence of a catalyst in the form of spherules or extradates containing an aluminasupport, 0.01-0.5% by weight palladium, 0.001 to 0.5% by weight of at least one group IBmetal, preferably silver, and optionally at least one alkaline or alkaline-earth metal, theweight ratio of the group IB metal to palladium being 0.05:1 to 0.25:1, in which catalyst atleast 80% of the palladium and at least 80% of the group IB element are present in avolume at a periphery of the catalyst defined between a spherical or cylindrical surface ofradius r. sub.1 corresponding to the average spherule or extradate diameter and aspherical or cylindrical surface of radius r.sub.2 at least equal to 0.8r. sub.1.

申请人：INSTITUT FRANCAIS DU PETROLE

代理机构：Millen, White, Zelano & Branigan, P

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