Cracking-desulfurization of thiophene contained paraffin over zeolites

The effects of reactions, different paraffins as reactants, and different zeolites as catalysts, on the cracking-desulfurization of thiophene contained paraffins were investigated. The results showed that low temperature, low space velocity, and high cat/oil ratio favored the cracking-desulfurization reaction. The activities of different zeolites for the cracking-desulfurization reaction were attenuated in the following order: HY, Hbeta, and HZSM-5. The cracking of thiophene was closely related to the paraffin used and also it's cracking ability. The results indicated that the reaction condition favored the hydrogen transfer reaction also promoted the cracking-desulfurization of thiophene.