The main sulfur containing compounds (SCCs) in the liquid fossil fuels are thiophene (T) and its derived compounds such as, benzothiophene (BT), dibenzothiophene (DBT) and 4,6- dimethyldibenzothiophene (4,6-DMDBT). Therefore, fuel desulfurization is one of the most important research areas to overcome this negative effect. When reduction of CO and NO x are intended in the automobile catalytic guards, organic sulfur compounds can reduce efficiently by poisoning of the catalysts 3, 4. Sulfur combinations present in fuel lead to sulfur dioxide and sulfate particulate generation and they are a major source of environmental pollutions 1, 2.
