PROCESS FOR THE SIMUTANEOUS AND SELECTIVE HYDROGENATION OF AN UNSATURATED C4 HYDROCARBON CUT AND AN ANSATURATED GASOLINE

摘要

Unsatd. C4 raffinate and unsatd. gasoline raffinate are hydrogenated simultaneously and selectively using a catalytic reaction under a gasoline conversion rate maintained up to 85-98% maleic anhydride. Recycle ratio of gasoline to the initial mixt. of gasoline and C4 raffinate is 0.2:1 - 5:1 in the reactor: the used catalyst is palladium. Raffinate is mixt. of satd. hydrocarbons, mono-olefinic hydrocarbons and butadiene, and gasoline contains sulfur with a content of 20-1000 ppm.