低温烟气中NOx脱除技术研究及应用进展

摘要

Nitrogen oxides (NOx) in low-temperature flue gas is difficult to be treated,the development of denitrification technology for the removal of NOx has attracted the attentions of researchers and technicians.The latest research progress and application of low-temperature SCR method,active coke method,oxidation-absorption method and new methods (such as ionic liquid method,membrane method and biological method) at home and abroad were systematically summarized.The problems existing in practical application of these technologies were discussed.The key factors for these technologies and the directions for the future were proposed,which provided references for promoting the comprehensive control of NOx from flue gas.%针对低温烟气中氮氧化物(NOx)难以处理的现状,开发低温烟气脱硝技术引起科研工作者和企业技术人员的广泛关注.对低温SCR法、活性焦法、氧化-吸收法以及新型方法(如离子液体法、膜法、生物法)在国内外的最新研究及应用进展进行了系统的总结,探讨了各种技术在实际应用过程中存在的问题,提出了低温烟气脱硝技术的关键以及未来技术的发展方向,为推动烟气中NOx的全面控制提供了参考.