A COMPARATIVE STUDY REGARDING HYDRODEAROMATIZATION OF AN EXTRACTION GASOLINE ON NI/AL2O3-SIO2 CATALYSTS
The removal of benzene, toluene and unsaturated hydrocarbon from the extraction gasoline was achieved by catalytic hydrogenation. The catalyst used was Ni/ Al2O3 – SiO2. The experiments were performed in a continuous fixed bed reactor at 10 bar, 60-150 0C, hydrogen /aromatic hydrocarbon molar ratio of 10 h-1 and gasoline WHSV of 1- 6 h-1. The catalyst behaviour was evaluated through a comparative experiment of a extraction gasoline used at vegetable oil processing and a synthetic mixtures of benzene–hexane, toluene-hexane and benzene-toluene-hexane. The experimental data distinguished an unfavourable influence of toluene on benzene hydrogenation.