真人棋牌游戏

脱硝设备,选择性非催化还原法脱硝

JIBENXINXI

SNCR(XUANZEXINGFEICUIHUAHAIYUAN)。

真人棋牌游戏YINGWENMINGCHENG selective non-catalytic reduction

真人棋牌游戏XUANZEXINGFEICUIHUAHAIYUANSHIZHIWUCUIHUAJIDEZUOYONGXIA,ZAISHIHETUOXIAOFANYINGDE“WENDUCHUANGKOU”NEIPENRUHAIYUANJIJIANGYANQIZHONGDEDANYANGHUAWUHAIYUANWEIWUHAIDEDANQIHESHUI。GAIJISHUYIBANCAIYONGLUNEIPENAN、NIAOSUHUOQINGANSUANZUOWEIHAIYUANJIHAIYUAN NOx 。HAIYUANJIZHIHEYANQIZHONGDE NOxFANYING,YIBANBUYUYANGFANYING,GAIJISHUBUCAIYONGCUIHUAJI,SUOYIZHEIZHONGFANGFABEICHENGWEIXUANZEXINGFEICUIHUAHAIYUANFA(SNCR)。YOUYUGAIGONGYIBUYONGCUIHUAJI,YINCIBIXUZAIGAOWENQUJIARUHAIYUANJI。HAIYUANJIPENRULUTANGWENDUWEI 850 ~ 1100℃ DEQUYU,XUNSUREFENJIECHENG NH3,YUYANQIZHONGDENOxFANYINGSHENGCHENGN2HESHUI。

XIANGXIJIANJIE

真人棋牌游戏CAIYONGANZUOWEIHAIYUANJIDESNCRCHENGWEIDe NOxFA,NIAOSUWEIHAIYUANJIDEWEI NOxOUTFA。

CAIYONGNH3ZUOWEIHAIYUANJI,ZAIWENDUWEI900℃~1 100℃DEFANWEINEI,HAIYUANNOxDEHUAXUEFANYINGFANGCHENGSHIZHUYAOWEI:

真人棋牌游戏4NH3 + 4NO+ O2 →4N2 +6H2O

4NH3 + 2NO+ 2O2 →3N2 +6H2O

真人棋牌游戏8NH3 + 6NO2 →7N2 +12H2O

ERCAIYONGNIAOSUZUOWEIHAIYUANJIHAIYUANNOxDEZHUYAOHUAXUEFANYINGWEI:

真人棋牌游戏(NH2 )2CO→2NH2 + CO

真人棋牌游戏NH2 + NO→N2 + H2O

CO + NO→N2 + CO2

SNCRCHANGYONGYUGUOLULUTANG,JIANGNOxPAIFANGLIANGJIANGZHIDAYUE200mg/Nm3。YONGLUNEISNCRXITONGDEHAIYUANJIZHIBEI、XISHI、PENSHE、KONGZHIXITONGDEJICHUSHANG,JIAZHUANGYANQIWEIBUTUOXIAOZHUANGZHI(SCR),ZUCHENGSNCR/SCRLIANHETUOXIAOGONGYI。


脱硝设备,选择性非催化还原法脱硝
选择性非催化还原是指无催化剂的作用下,在适合脱硝反应的“温度窗口”内喷入还原剂将烟气中的氮氧化物还原为无害的氮气和水。该技术一般采用炉内喷氨、尿素或氢氨酸作为还原剂还原 NOx 。还原剂只和烟气中的 NOx反应,一般不与氧反应,该技术不采用催化剂,所以这种方法被称为选择性非催化还原法(SNCR)
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