Effect of Nitrogen Compound on Deep Hydrodesulfurization of 4,6-Dimethyldibenzothiophene Over NiMo Sulfide and Ni Phosphide Catalysts

摘要

Due to increasingly stringent environmental regulations on sulfur content in fuel,ultra-deep hydrodesulfurization (HDS) of diesel fuel has become an important research area (1).The sulfur level in diesel fuel must be reduced from the present 500 ppmw to 15 ppmw by 2006 in the US.Studies on deep hydrodesulfurization of model fuels and real diesel fuels are being conducted with various methods and different catalysts by many research groups (1-4).