The oxidation desulfurization and denitrification of coker gasoline were carried out with hydrogen peroxide as the oxidant, phosphorus tungsten acid as catalyst, cetyl trimethyl ammonium chloride as phase transfer catalysts and furfural as extracting agent. The desulfurization and denitrification rate can reach to 89.93% and 95.10% under the following conditions: gasoline 50 mL, catalyst 0.32 g, phase transfer catalyst 0.09 g, hydrogen peroxide 5 mL, oxidation temperature 70 ℃, oxidation time 60 min. The Oxidant Solution can be recycled when replenishing appropriate oxidant and phase transfer catalysts, and the extractant can also be recycled after treatment. Without phase transfer catalyst, the desulphurization and denitrification rate were only 77.35% and 91.98%, respectively. Therefore, phase transfer catalyst can greatly improve the desulfurization performance.

The researches on Kazakhstan oil-wet oil sand were carried out by the solvent extraction method, from which the best solvent was found out. The influences of oil sand particle, the weight ratio of oil sand, the solvent type, and the extraction time of the oil yield were discussed in the experiment. When naphtha was chose as the solvent with the oil sand size blow 40 mesh, the ratio of solvent and oil sand fixed at about 4∶1, and the reaction time about 10 min at room temperate. The recovery yield of oil from oil sand is above 98%. The experiment is instructive to oil-wet oil sand separation.