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Petroleum Science >2018,??Issue 4:??882-889 DOI:

Polyoxometalate-based silica-supported ionic liquids for heterogeneous oxidative desulfurization in fuels Open?Access

文章信息

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作者：Ming Zhang, Miao Wang, Jiapeng Yang, Hongping Li, Jiaqi Liu, Xiao Chen, Wenshuai Zhu and Huaming Li
作者單位：

Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China,Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China; School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China,School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China,Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China,Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China; School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China,School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China,School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China and Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China

投稿時間：2018-04-14
引用方式：

文章摘要

With the aim of deep desulfurization, silica-supported polyoxometalate-based ionic liquids were successfully prepared by a one-pot hydrothermal process and employed in heterogeneous oxidative desulfurization of various sulfur compounds. The compositions and structures of the hybrid samples were characterized by various methods such as FT-IR, XPS, Raman, UV–Vis, wide-angle XRD and N2 adsorption–desorption. The experimental results indicated that the hybrid materials presented a high dispersion of tungsten species and excellent catalytic activity for the removal of 4,6-dimethyldibenzothiophene without any organic solvent as extractant, and the sulfur removal could reach 100.0% under mild conditions. The catalytic performance on various substrates was also investigated in detail. After cycling seven cycles, the sulfur removal of the heterogeneous system still reached 93.0%. The GC-MS analysis results demonstrated that the sulfur compound was first adsorbed by the catalyst and subsequently oxidized to its corresponding sulfone.

關鍵詞

    Polyoxometalate, Silica-supported ionic liquid, Heterogeneous oxidative desulfurization