Method of removing acetylenes from C.sub.4 -hydrocarbon mixture

Details Method of removing acetylenes from C.sub.4 -hydrocarbon mixture Method of removing acetylenes from C.sub.4 -hydrocarbon mixture

1979-04-18

1981-01-27

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...

Hydrocarbon is contaminant in desired hydrocarbon

C07C 7167

Patent

active

042477255

ABSTRACT:
There is provided a method of selectively hydrogenating acetylenes in a C.sub.4 -hydrocarbon mixture containing butadiene for removing said acetylenes wherein a hydrogen containing gas and the liquid C.sub.4 -hydrocarbon mixture are continuously fed through the upper portion of a reactor filled with catalyst particles carrying one or more precious metals selected from the Group VIII elements of the Periodic Table, the hydrogen containing gas is present in the reactor forming a substantially continuous phase at the hydrogen partial pressure of less than 1.5 kg/cm.sup.2.a, while the C.sub.4 -hydrocarbon mixture is allowed to flow down over the surfaces of the catalyst particles in the liquid form and to react at 5 to 80.degree. C., and the reaction mixture is withdrawn through the bottom of the reactor.

REFERENCES:
patent: 3859377 (1975-01-01), Gross et al.

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