Deep desulfurization of diesel by selective oxidation using amphiphilic paradodecatungstate catalyst

Deep desulfurization of diesel by selective oxidation using amphiphilic paradodecatungstate catalyst

Type	Journal Article
Author	Dongmei Hao
Author	Wansheng You
URL	http://dx.doi.org/10.1080/10426507.2015.1073276
Volume	191
Issue	1
Pages	30-34
Publication	Phosphorus, Sulfur, and Silicon and the Related Elements
Date	January 2, 2016
Abstract	Reports fabrication of an amphiphilic paradodecatungstate catalyst, [(C18H37)2N(CH3)2]9[NaH2W12O42]. It was characterized by Fourier transform infrared spectroscopy, UV–visible spectrum, differential thermal analysis, and thermogravimetric analysis. The amphiphilic catalyst exhibits very high catalytic activity that dibenzothiophene (DBT) in model diesel can be oxidized into dibenzothiophene sulfones using hydrogen peroxide as an oxidant. The reactivity of sulfur compounds decreased in the order of DBT > 4,6-DMDBT > BT > 5-MBT. The reaction rates of these sulfur compounds are sensitive to the electron density on sulfur atoms and the steric hindrance of the substituted groups of sulfur compounds.