Deep oxidative/adsorptive desulfurization of model diesel oil by DBD/FeCl3-SiO2

A new system oxidative/adsorptive desulfurization of model diesel oil by dielectric barrier discharge (DBD) plasma in the presence of air as oxygen resource, FeCl3-SiO2 as catalyst and adsorbent was studied. The sulfur content of DBT in model oil can be decreased from 200 ppm to 3 ppm (S-removal rate up to 98.4%). Moreover, the good desulfurization rate of BT (benzothiophene) and 4,6-DMDBT (4,6-dimethyl-dibenzothiophene) could reach 94.8% and 92.7% under the above conditions.