Patent ID: 9260386
Filing Date: 2016-02-16
CPC Classification: C07C

Claim Text:
1. A process for removing mercaptans from a C4 hydrocarbon mixture, the C4 hydrocarbon mixture, comprising: 1-butene, a multiply unsaturated hydrocarbon and a mercaptan; the process comprising: feeding the C4 hydrocarbon mixture to a reactor comprising a heterogeneous catalyst; feeding hydrogen to the reactor; reacting the mercaptan with the multiply unsaturated hydrocarbon in the presence of the hydrogen in a liquid phase in the presence of the heterogeneous catalyst to obtain a thioether; and separating the thioether from the C4 hydrocarbon mixture by distillation; wherein a molar ratio of the hydrogen to the multiply unsaturated hydrocarbon is from 1/100 to 8/10.