Process for the selective hydrogenation of multiply unsaturated hydrocarbons in olefin-containing hydrocarbon mixtures

摘要

The present invention describes a process for the parallel selective hydrogenation of branched and unbranched multiply unsaturated C4-C6-hydrocarbons in olefin-containing hydrocarbon mixtures with minimization of hydrogenation and isomerization of the olefins present in the stream.

主权项

1. A process, comprising:
selectively hydrogenating an unbranched, multiply unsaturated C4-hydrocarbon and a branched, multiply unsaturated C5-hydrocarbon in a hydrocarbon mixture with addition of hydrogen and carbon monoxide in the presence of a heterogeneous hydrogenation catalyst in a hydrogenation reactor, wherein a ratio of the volume of a feed stream comprising the hydrocarbon mixture, hydrogen, and carbon monoxide into the hydrogenation reactor to the volume of the hydrogenation catalyst per hour of residence time is from 10 to 25 l/h, wherein a temperature at which the feed stream enters the hydrogenation reactor is from 30 to 60° C., and wherein a content of carbon monoxide in the feed stream is from 0.5 to 5 ppm, based on the mass of the hydrocarbon mixture.