from first principles PP-I-1

PP-IV-13Ion Exchange Resin Immobilized 12-Tungstophosphoric Acid as a Catalystfor the Oxidative Removal of Organosulfur Targeted at Clean FuelLiu R.J., Wang R.School of Environmental Science & Engineering, Shandong University,Jinan, 250100, Shandong, ChinaLrj6336@163.com, ree_wang@hotmail.comThe purpose of this paper was to investigate the desulfurization of the diesel oil, by immobilizing12-tungstophosphoric acid (TPA) on several ion exchange resins, and further to screened theoptimum resin (Amberlite-IRA900C). A solution of n-octane containing DBT was used assimulated diesel oil, H 2 O 2 as oxidant, and acetonitrile (MeCN) as extractant. The best sulfurconversion efficiency was 95.8%. The optimum conditions were determined by adjusting themain factors that influenced the oxidative desulfurization (ODS) process, including O/S molarratio, temperature, and catalyst dosage. The most favorable operating conditions were O/S = 28,T = 60 °C, the time of catalyst pre-contact with H 2 O 2 for 8 min and the catalyst dosage of0.222/0.500 (mmol g –1 dry resin). In the TPA/IRA900C-catalyzed oxidative desulfurization of thediesel oil (300 ppm sulfur), the sulfur content was reduced to 24.9 ppm. Moreover, the activity ofthe reused catalyst was almost the same as the fresh. Therefore, this immobilized catalystTPA/IRA900C is promising for deep desulfurization by the ODS process.References:[1] S. Alexander, J.T. Bruce, J. Catal Rev. 52 (2010) 381.[2] W.Q. Eika, J. Jpn Petrol Inst. 51 (2008) 14.[3] C.S. Song, J. Catal Today. 86 (2003) 211.[4] W. Guo, C.Y. Wang, P. Lin, X.P. Lu, J .Appl Energy. 88 (2011) 175.[5] H. Mei, B.W. Mei, T.F. Yen, J. Fuel. 82 (2003) 405.[6] D.H. Wang, W.Q. Eika, A. Hiroshi, O. Kazuhiro, I. Atsushi, K. Toshiaki, J. Appl Catal A: Gen.253 (2003) 91.[7] X.L. Ma, L. Sun, C.S. Song, J. Catal Today. 77 (2002) 107.[8] A.J. Hernandez-Maldonado, R.T. Yang, J. Am Chem Soc. 126 (2004) 992.[9] S.G. McKinley, R.J. Angelici, J. Chem Commun. 20 (2003) 2620.[10] P. Agarwal, D.K. Sharma, J. Energy Fuels. 24 (2010) 518.[11] H.S. Gao, M.F. Luo, J.M. Xing, Y. Wu, H.M. Li, W.L. Li, J. Ind Eng Chem Res. 47 (2008) 8384.[12] A. Dosmann, L. Datsevich, A. Jess, J. Chem Commun. 23 (2001) 2494.[13] J. Esser, P. Wasserscheid, A. Jess, J. Green Chem. 6 (2004) 316.[14] R. Wang, G.F. Zhang, H.X. Zhao, J. Catal Today. 149 (2010) 117.[15] V.K. Ivan, Catalysis by polyoxometalates (Catalysis for fine chemical synthesis; Vol 2). 1st ed.Liverpool: John Wiley & Sons; 2002.[16] Y.Z. Kazumasa, F.R. Takeshi, M.K. Keiji, J. Jpn Petrol Inst. 46 (2003) 379.[17] C. Aubry, G. Chottard , N. Platzer, J.M. Bregeault, R. Thouvenot, F. Chauveau, J. Inorg Chem.30 (1991) 4409.297