CATALYST FOR SELECTIVE HYDROGENATION OF C3 HYDROCARBON FRACTIONS FROM STEAM CRACKING AND/OR CATALYTIC CRACKING

摘要

PROBLEM TO BE SOLVED: To provide a catalyst for selective hydrogenation of C3 hydrocarbon fractions from steam cracking and/or catalytic cracking.SOLUTION: Provided is a catalyst comprising an active phase constituted by palladium, and a porous support comprising at least one refractory oxide selected from a group consisting of silica, alumina, and silica-alumina, in which: the palladium content in the catalyst is in the range 0.0025% to 1% by weight with respect to the total weight of catalyst; at least 80% by weight of the palladium is distributed in a crust at the periphery of the porous support, the thickness of the crust being in the range 25 to 500 μm; the specific surface area of the porous support is in the range of 1 to 50 m/g; and the metallic dispersion D of the palladium is less than 20%.SELECTED DRAWING: None