车用燃料电化学脱硫研究进展

随着空气污染的日益严重及环保法规的逐步完善,车用燃料清洁化生产已势在必行.作为一种新型脱硫技术,电化学脱硫近年来研究较多.车用燃料电化学脱硫技术包括氧化脱硫及还原脱硫.相对于传统加氢脱硫,电化学脱硫具有反应条件温和、选择性高、工艺流程简单及易于自动控制等特点.本文综述了国内外车用燃料电化学脱硫的研究现状,从反应机理、实验方法、脱硫效果等方面详细介绍了电化学脱硫的研究进展.提出了深入研究反应机理、寻找新型电极材料、配制复合电解液以及开发电化学组合脱硫工艺是未来车用燃料电化学脱硫的发展方向.

Research progress of electrochemical desulfurization of vehicle fuel

With increasingly serious air pollution and perfecting environmental protection laws,cleaner production of vehicle fuel is imperative. As a new type of desulfurization technology,more and more researches have focused on electrochemical desulfurization in recent years. Electrochemical desulfurization of vehicle fuel includes oxidation desulfurization and reduction desulfurization. Compared with the traditional hydrogenation desulfurization methods and other non-hydrogenation desulfurization methods,the electrochemistry desulfurization technology as a new desulfurization technology possesses the advantages of moderate operating conditions,high removal effectiveness of sulfur compounds,more simple process and automatic control. Advances in electrochemical oxidation desulfurization and reduction desulfurization,including reaction mechanism,experimental methods and desulfurization effect,are reviewed. Furthermore,the development and application trends of electrochemical desulfurization are proposed. Reaction mechanism,new electrode materials, composite electrolyte,and combination of composite desulfurization process with other desulfurization technology will become the future research directions of electrochemical desulfurization.