The efifciency of lfue gas denitration technology of SNCR is total y depended on temperature window, so the usability of the different furnace types varies. In combination with several engineering cases, the paper describes the denitration efifciency of SNCR technology in circulating lfuidized bed boiler, pulverized coal furnace, chain boiler and other some furnace types, analyzes the different inlfuence factors, and provides the reference experiences for the applications of SNCR technology in the different furnace types.%选择性非催化还原（SNCR）烟气脱硝工艺的效率完全依赖于温度窗口，不同炉型的适用性差别较大。结合多个工程案例，描述了SNCR工艺在循环流化床锅炉、煤粉炉、链条炉及其它炉型上的脱硝效果，分析了各种影响因素，为SNCR工艺在不同炉型中的应用提供了参考。
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