Oxidative Desulfurization of Gasoline Oil Using K₂FeO₄ over SO₄^2–/ZrO₂ Solid Superacid

Abstract

A catalyst comprising SO42–/ZrO2superacid was prepared by impregnation and characterized by FT-IR, XRD, and BET. A novel procedure for oxidative desulfurization of simulated light fuel oil using K2FeO4over the SO42–/ZrO2solid superacid was developed. The effects of the oxidantion and extraction conditions on desulfurization were investigated. At temperature of 30 °C, SZ of 0.2 g, K2FeO4of 0.2 g, reaction time of 1 h, 20 mL of oil is oxidized, followed by methanol extraction at 15 °C for 10 min with the volume ratio of solvent/oil of 1, the results display desulfurization rate for simulated light fuel oil and straight-run gasoline were 88.2% and 89.2%, respectively.

A Review of the Desulfurization Processes Used for Waste Tire Pyrolysis Oil

“…Several oxidizing agents, such as H 2 O 2 , O 2 , K 2 FO 4 , cumin hydroperoxide (CHP), and tert-butyl hydroperoxide (TBHP) have been used in the ODS process. Of these, most researchers have used H 2 O 2 as an oxidizing agent because of its commercial availability and low cost; furthermore, it is nonpolluting and comparatively less corrosive [38][39][40][41][42]. The reduction of sulfur was more effective when the following were employed: 5 wt% Ca(OH) 2 or CaO as the catalyst, a formic acid-H 2 O 2 mixture and an acetic acid-H 2 O 2 mixture at a ratio of 1 to 2 (v/v) as the oxidants, and 10% H 2 SO 4 as the additive.…”