A Oxidative Desulfurization System for Diesel Fuels with hydrogen peroxide in the Presence of Solid Acid Catalysts
This work presents the results obtained in the development of phosphotungstic acid/semi-coke catalysts in the oxidative desulfurization (ODS) process of diesel fuel using hydrogen peroxide as the oxidizing agent. Phosphotungstic acid /semi-coke prepared by impregnation. The effects of the amount of catalyst used, two phase volume ratio, reaction temperature , on the efficiency of desulfurization were investigated. At the optimal operation condition, the sulfur level of the desulfurized diesel can be lowered from about 1300 ppm to below 50 ppm after oxidation and extraction at 333 K and under atmospheric pressure, 96% of the sulfur could be removed from the diesel oil.. Phosphotungstic acid /semi-coke catalysts can be used repeatedly. In addtion. the diesel after oxidation and extraction was analyzed by GC-FPD for sulfur content. The chromatograph shows that virtually all the sulfur containing compounds in diesel were removed.
Desulfurization Oxidation Solid Acid Catalysts Hydrogen peroxide.
Liang Wang Chunhu Li Yingfei Hou Hongyang Zhou
College of Chemistry and Chemical Engineering, Ocean University of China, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao 266100 , China
国际会议
The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)
大连
英文
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）