PALLADIUM/SILVER HYDROGENATION CATALYST AND METHODS Russian patent published in 2007 - IPC B01J23/44 B01J23/50 B01J27/13 C07C5/08 

FIELD: hydrogenation-dehydrogenation catalysts.

SUBSTANCE: invention relates to catalytic compositions palladium/silver on carrier, to methods for preparation thereof, and to unsaturated hydrocarbon hydrogenation processes. catalytic composition containing platinum, silver, and iodine component (options) is described as well as methods for preparation thereof comprising interaction of composition containing palladium, silver, and carrier with liquid composition containing iodine component followed by calcination. Alternatively, carrier is brought into consecutive interaction with palladium component, silver component, and iodine component using intervals for intermediate calcination after each interaction. Hydrocarbon hydrogenation process is also described, in particular selective hydrocarbon of acetylene into ethylene, in presence of above-defined catalytic composition.

EFFECT: increased hydrogenation process selectivity and reduced degree of catalyst deactivation.

52 cl, 1 tbl, 6 ex