| 摘要 |
FIELD: hydrogenation-dehydrogenation catalysts. ^ SUBSTANCE: invention provides a catalyst for selective hydrogenation of alkines and dienes in C2-C5+-olefin mixtures, said catalyst containing 0.005 to 1% palladium and 0.005 to 1% eleventh group metal both fixed on silica carrier. Eleventh group metal is uniformly spread throughput cross-section of catalyst grains while palladium is present in border layer in proximity of catalyst grain surface. According to invention, carrier material is mixed with eleventh group metal to form carrier, which is the calcined, impregnated with palladium-containing solution, and calcined once more. Selective alkine and diene hydrogenation process in presence of above-defined catalyst is also provided. ^ EFFECT: reduced conversion rate and reduced formation of oligomers. ^ 10 cl, 3 tbl, 5 ex |
