介绍了选择性非催化还原（SNCR）脱硝技术的原理，分析了该技术在实际应用中还原温度、烟气组成、氨氮比、还原剂种类以及还原剂喷入方式与停留时间对脱硝效率的影响，介绍了SNCR技术在电厂锅炉、水泥窑炉以及陶瓷行业烟气脱硝中应用的工程实例。%The principle of selective non-catalytic reduction (SNCR) technology are described in this paper as well as the impact factors such as reduction temperature, flue gas components, mole ratio of NH3/NOx, reducing agent, injection method and retention time of reducing agents on the denitrification efficiency. Finally the application of the technology for flue gas denitrification of power plant boilers, cement kilns and ceramic industry are introduced.
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