The hydrogenation activity of various carbon-supported metal sulfides catalysts were investigated in order to elucidate the influences of metals and carbon species on the catalytic activity. NiMo sulfides supported on Ketjen Black (KB), Black Pearl 2000 (BP2000), or DIAHOPE active carbon (D-AC) of high surface areas above 1000 m^2/g exhibited the higher activity for the hydrogenation of 1-methylnaphthalene than NiMo sulfides supported on active cokes of lower surface areas and Fe-based catalysts supported on KB. The relationship between the catalytic hydrogenation activity and species of metals and carbon supports is briefly discussed based on the catalytic activity order and the characterization of the carbon-supported catalysts.
