Catalysts and process for the selective hydrogenation of acetylenes.

摘要

A catalyst containing palladium and optionally chromium on an alumina support having a surface area of less than 5 m<2>/g, a Hg pore volume between 0.2 and 0.5 cm<3>/g and wherein greater than 40% of the pore volume is contained in pores having pore diameters of greater than 10 mu m, and a process for the selective hydrogenation of acetylenes in a stream comprising lower olefins by contacting this stream at 5-200 DEG C with H2 in the presence of this catalyst.