Adsorption desulfurization of several organic sulfur compounds in model fuels (tetralin and n-dodecane) by metal (Co, Ni, Cu, Zn, Pb)-loaded carbons was studied with a batch-type Pyrex glass vessel or stainless autoclave at 25-350 degrees C to develop a novel method of removing the sulfur present in coal extract. The results showed that nickel-loaded carbon (Ni/C) has the highest desulfurization performance, but the adsorption depends on the type of model fuel and the kind of sulfur compound. At <200 degrees C, desulfurization was higher in n-dodecane than in tetralin and increased in the order of dibutyldisulfide= 250 degrees C and was larger in tetralin than in n-dodecane. GC-MS analysis following the experiments with DBT revealed the presence of biphenyl, meaning that cleavage of the organic C-S bond in DBT proceeds on Ni/C.