Catalytic oxidative desulfurization of benzothiophene with hydrogen peroxide catalyzed by Fenton-like catalysts
Catalytic oxidative desulfurization of benzothiophene with hydrogen peroxide catalyzed by Fenton-like catalysts
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类Fenton催化剂催化过氧化氢催化苯并噻吩氧化脱硫
DOI：
10.1007/s11144-014-0750-y
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发表时间：
2014-07
期刊：
影响因子：
--
通讯作者：
Ying Liu
中科院分区：
文献类型：
--
作者：
Guangjian Wang;Luping Zhang.;Xintao Fu;Ying Liu
研究了活性炭负载铁氧化物催化剂在温和条件下对苯并噻吩正辛烷的催化氧化脱硫反应。以硝酸为改性剂，采用改进的沉积-沉淀法制备了联合收割机，将活性炭的吸附特性与γ-Fe 2 O3和/或Fe 3 O 4纳米粒子的磁性和优异的催化性能结合起来，并通过N2吸附、XRD、SEM/EDS、TPR和XPS等手段对复合材料进行了表征。主要结果表明，氢处理的结果，在硫去除的增加，可能作为一个功能的更多的还原铁物种形成的氢处理。以乙腈为萃取剂，在室温（30 °C）和常压下，模拟柴油中的硫含量从700 ppmw降至38.6 ppmw，总硫脱除率达94.5%。
The catalytic oxidative desulfurization of benzothiophene inn-octane has been investigated with hydrogen peroxide over catalysts of activated carbon (AC) supported iron oxides under mild conditions. The prepared composites, which combine the adsorption features of AC with the magnetic and excellent catalytic properties of γ-Fe2O3and/or Fe3O4nanoparticles, were fabricated by a modified deposition–precipitation method using HNO3as the carbon modifying agent and characterized by N2adsorption, XRD, SEM/EDS, TPR and XPS. The main results suggest that the hydrogen treatment results in an increase of sulfur removal, probably as a function of more reduced iron species formed with the hydrogen treatment. Using acetonitrile as an extraction solvent, the sulfur content in model diesel fuel reduced from 700 to 38.6 ppmw, and 94.5 % of total sulfur was removed under the operating conditions of room temperature (30 °C) and atmospheric pressure.
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10.9
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