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AssigneeInstitut Francais du Petrole
InventorsBlaise Didillon, Charles Cameron, Christophe Gautreau
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A particulate selective hydrogenation catalyst for transforming unsaturated diolefinic hydrocarbons to .alpha.-olefinic hydrocarbons is described, for the hydrogenation of diolefinic compounds to .alpha.-olefinic compounds at rates which are at least 1.5 times higher than the rate of hydrogenation of .alpha.-olefinic hydrocarbons to saturated compounds. The catalyst contains palladium distributed at the periphery of particles (spherules or extrudates), and at least one element selected from tin and lead. Further, the tin and/or lead is advantageously distributed at the periphery of the spherules or extrudates. The catalyst preparation is also described, as well as a process for selective hydrogenation of diolefins to .alpha.-olefins using the catalyst.
A selective hydrogenation particulate catalyst, comprising particles of a porous support comprising at least one refractory inorganic oxide, and, as active elements, palladium distributed at the periphery of the support particles and at least one element M being tin or lead, said palladium content being in the range 0.025% to 1.0% by weight of the catalyst and the content of element M being in the range 0.05% to 4% by weight of the catalyst.
A selective hydrogenation particulate catalyst, comprising particles of a porous support comprising at least one refractory inorganic oxide, and, active elements, consisting essentially of palladium distributed at the periphery of the support particles and at least one element M being tin or lead, said palladium content being in the range 0.025% to 1.0% by weight of the catalyst and the content of element M being in the range 0.05% to 4% by weight of the catalyst.
Dependencies are inferred from the claim text.