Oxidative desulfurization of dibenzothiophene with dioxygen and reverse micellar peroxotitanium under mild conditions
Oxidative desulfurization of dibenzothiophene with dioxygen and reverse micellar peroxotitanium under mild conditions
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DOI：
10.1016/j.apcatb.2011.05.038
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发表时间：
2011-08-11
影响因子：
22.1
通讯作者：
Huo, Minxin
中科院分区：
文献类型：
--
作者：
Jiang, Caiyun;Wang, Jingjing;Huo, Minxin
在有机溶剂中组装了含过氧钛的反胶束催化剂[C（18）H（37）N（CH（3））（3）]（7）[PW（10）Ti（2）O（38）（O（2））（2）]，并用傅里叶变换红外光谱（FT-IR）、漫反射紫外可见光谱（DR-UV-维斯）对其结构进行了表征。X射线光电子能谱（XPS）、透射电子显微镜（TEM）、能量色散X射线分析（EDAX）和基质辅助激光解吸电离飞行时间（MALDI-TOF）质谱。用该反胶束催化剂直接氧化二苯并噻吩（DBT）为砜，其选择性接近100%。通过该催化剂，在常压、中温条件下，可以将柴油中的硫含量从500 ppm催化降低到1.0ppm。(C)2011 Elsevier B. V.保留所有权利。
The reverse micellar peroxotitanium-containing catalyst [C(18)H(37)N(CH(3))(3)](7)[PW(10)Ti(2)O(38)(O(2))(2)] was assembled in the organic solvent and the structure was characterized by Fourier transform infrared spectroscopy(FT-IR), Diffuse reflectance UV-vis spectrum (DR-UV-vis). X-ray photoelectron spectrum (XPS), transmission electron microscopy (TEM), Energy dispersive X-ray analysis (EDAX), and Matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry. Direct oxidation of dibenzothiophene (DBT) using O(2) was performed by this reverse micellar catalyst with similar to 100% selectivity in the oxidation of DBT to sulfone. By this catalyst, it could catalytically decrease sulfur level in diesel from 500 ppm to 1.0 ppm at ambient pressure and moderate temperature. (C) 2011 Elsevier B.V. All rights reserved.