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中文摘要：
NH3选择性催化还原NO（NH3-SCR）技术在燃煤电厂烟气脱硝过程中有着多年的工业应用经验,也是最有望实际应用于柴油车尾气NOx催化去除的技术之一.鉴于目前工业化应用的V2O5-WO3（MoO3）/TiO2催化剂体系应用于柴油车尾气净化仍存在着诸多问题,开发新型、高效、稳定且环境友好的非钒基NH3-SCR催化剂体系成为NOx催化净化领域的研究热点.以分子筛催化剂（包括Cu基分子筛催化剂以及Fe基分子筛催化剂）和氧化物催化剂（包括Fe基氧化物催化剂、Mn基氧化物催化剂以及其他非钒基氧化物催化剂）为主线,综述了近年来国内外有关非钒基NH3-SCR催化剂的研究进展,较为全面地总结了该系列催化剂的NH3-SCR反应性能、活性中心结构、低温SCR活性改进、NH3-SCR反应机理、抗H2O或抗SO2性能改善以及工业化应用的可行性,并展望了该领域未来可能的发展方向和研究热点.
英文摘要：
Selective catalytic reduction of NO with NH3（NH3-SCR） is a well-proven technique for the removal of NOx from stationary sources such as coal-fired power plants,and is also one of the most promising techniques for the NOx elimination from diesel exhaust under oxygen-rich conditions. Due to some inevitable disadvantages of the present V2O5-WO3（MoO3） /TiO2 catalyst for industrial use,many researchers focus on the development of novel,highly efficient,stable,environmental-friendly and vanadium-free NH3-SCR catalysts. The research progress in the field of vanadium-free NH3-SCR catalysts is reviewed,including zeolite catalysts（such as Fe-zeolite catalysts and Cu-zeolite catalysts） and oxide catalysts（such as Fe-based oxide catalysts,Mn-based oxide catalysts,and other vanadium-free oxide catalysts） . Several aspects in this field,including the evaluation of catalytic performance,the structure analysis of active sites,the improvement of low temperature activity,the study of NH3-SCR reaction mechanism,the enhancement of H2O/SO2 durability,and the feasibility analysis for industrial use,have been discussed in detail. The possible developing orientation and research interests in the field of vanadium-free NH3-SCR catalysts are previewed.
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