Desulfurization manner in order to remove resistance resolution Characteristic organic sulfur complex ring from the petroleum stream

摘要

(57) Abstract The hydrocarbon raw material, the stream under hydrogenation desulfurization (HDS) condition, for example the xanthation succession metal promotion tungsten of Ni/Co-Mo/Al2O3 and the like/the molybdenum HDS catalytic converter, and the alkyl which exists in the raw material stream effective to the isomerization of the condensed ring complex ring sulfur chemical compound displacement/redistribution/the transalkylation, is upgraded by the fact that it makes the catalytic converter system contact which for example includes the solid Acid catalytic converter of zeolite or hetero polyacid compound and the like. The isomer where isomerization, redistribution and the transalkylation, 4 - or 4,6 - resistance resolution Characteristic sulfur chemical compound such as alkyl dibenzo thiophene, are desulfurized to H₂ S and the other products easily with the former HDS catalytic converter compared to, correspond or it converts to the isomer which is redistributed.