摘要
The microwave technology was introduced for the desulfurization of diesel fuel. The atmosphericsecond side-cut diesel fraction, which was supplied by Liaohe Petrochemical Company, was desulfurized by anoxidation process under microwave irradiation. Hydrogen peroxide (H2O2), can oxidize the sulfur compounds indiesel fuel selectively and convert them into sulfones. Based on the rule of dissolution by similar substances,these sulfones are removed from diesel fuel because they could be dissolved in solvent phase. So the sulfurcontent of diesel fuel is decreased. The influence of the concentration of oxidizing reagent, solvent phase to oilphase volume ratio (S/O), irradiation pressure, irradiation time, and the irradiation power have been investigated.The optimum conditions for the refining process was determined. The sulfur removal rate was 59.7% under theoptimum conditions of 8%H2O2, S/O=0.25, 0.05MPa, 6 min, and 375W, respectively. When no microwave irradia-tion was applied, the removal rate was 11.5% only.
The microwave technology was introduced for the desulfurization of dieselfuel. The atmospheric second side-cut diesel fraction, which was supplied by Liaohe PetrochemicalCompany, was desulfurized by an oxidation process under microwave irradiation. Hydrogen peroxide(H_2O_2), can oxidize the sulfur compounds in diesel fuel selectively and convert them intosulfones. Based on the rule of dissolution by similar substances, these sulfones are removed fromdiesel fuel because they could be dissolved in solvent phase. So the sulfur content of diesel fuelis decreased. The influence of the concentration of oxidizing reagent, solvent phase to oil phasevolume ratio (S/O), irradiation pressure, irradiation time, and the irradiation power have beeninvestigated. The optimum conditions for the refining process was determined. The sulfur removalrate was 59.7% under the optimum conditions of 8%H_2O_2, S/O=0.25, 0.05MPa, 6 min, and 375W,respectively. When no microwave irradiation was applied , the removal rate was 11.5% only.
