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木子原含氮氧化物废气处理技术

来源:木子原 发布日期:2019-03-02 10:50:10 作者:zhishun

DANDEYANGHUAWUZHONGLEIYOUHENDUO,YOUYANGHUAYADAN、YIYANGHUADAN、ERYANGHUADANDENGDENG。ZONGCHENGWEIDANYANGHUAWU,QIZHONGZHUYAOWEINOYUNO2。YIZHISHOUDAOFEIQICHULIDEZHAOGUDEJIUSHINOLE,ZAIRANSHAOPAIFANGDEDANYANGHUAWUZHONG,NOZHANLE90%~95%。ZHEIGESHUJUJIUZUGOUSHUOMINGLEDUIYUQIYELAISHUODUINODEFEIQICHULIBEISHOUGUANZHU。

废气处理的领域来说脱除烟气中氮氧化物使其成为烟气脱氮,有时也称烟气脱硝。对于这种废气的处理常常采用催化还原,是一种广泛用于废气脱硝的成功的技术。利用不同的还原剂,在一定温度和催化剂的作用下将NOX还原为无害的氮气和水来进行废气处理的过程通称为催化还原法。下面就由木子原来讲解一下这种方法的一些具体内容。

1、催化剂

管家婆四不像平特一肖图BUTONGDECUIHUAJIYOUBUTONGDEHUOXING,YINERFANYINGWENDUHEJINGHUAXIAOLVYEBUTONGJUTIQINGKUANGRUXIABIAO。

废气处理

2、还原剂用量

CHANGYONGNH3/NOxDEWUZHIDELIANGLAIHENGLIANG,GAIZHIXIAOYU1SHIFANYINGBUWANQUAN,1~1.4ZHIJIANYOUYIGEFEIYUEDIAN,ZAIDASHIZENGJIAANHAO,BINGZAOCHENGWURAN。YINCISHENGCHANSHANGKONGZHI1.4~1.5。

3、空间速度

SHIYIDEKONGSUCAINENGHUODEJIAOGAODEJINGHUAXIAOLV,QIZHIYINGTONGGUOSHIYANQUEDING。

废气处理

4、反应温度

管家婆四不像平特一肖图CAIYONGMOUZHONGCUIHUAJI,RUTONGGECUIHUAJI,DANGSHANGSHUFANYINGDEWENDUGAIBIANSHI,DANGWENDUJIAOGAOSHIKENENGFASHENGYIXIEBULIYUNOxHAIYUANDEFUFANYING,LIRUFASHENGNH3FENJIEWEIN2HEH2DEFANYING,SHIHAIYUANJIJIANSHAO,HUOZHENH3BEIO2YANGHUAWEINODEFANYING。ZHEIXIEFANYINGFASHENGZAI350℃YISHANG,CHAOGUO450℃BIANDEJILIEWENDUZAIGAO,HAINENGZAISHENGCHENGNO2,CONGERSHINOxDEHAIYUANLVXIAJIANG。ERZAI200~350℃ZHIJIAN,NH3YUO2ZHISHENGCHENGN2HEH2O,NOxDEHAIYUANLVSUIZHEFANYINGWENDUDESHENGGAOERZENGDA。YANJIUBIAOMINGLEDANGWENDUDIYU200℃,KENENGSHENGCHENGXIAOSUANAN(NH4NO3)HEYOUBAOZHAWEIXIANDEYAXIAOSUANAN(NH4NO2),YANZHONGSHIHUIDUSAIGUANDAO。YOUCIKEJIANWENDUDUISCRGONGYIJIWEIZHONGYAO,YINGSHISHIYANGEKONGZHI。SCRDEZUIJIAWENDUWEI300~400℃,ZHEISHIJINYOUZHUFANYINGNENGGOUJINXING。

废气处理

5、非选择性催化还原法NSCR

GAIFASHIZAIGUIJINSHUBO、BADENGCUIHUAJIZUOYONGXIA,FANYINGWENDUWEI550~800℃SHI,YONGH2、CH4、COHUOYOUTAMENZUCHENGDERANLIAOQIZUOWEIHAIYUANJI,JIANGFEIQIZHONGDENOxHAIYUANWEIN2,TONGSHIHAIYUANJIFASHENGYANGHUAFANYINGSHENGCHENGCO2HEH2O。GAIFANOxTUOCHULVKEDA90%,DANHAIYUANJIHAOLIANGDA,XUCAIYONGGUIJINSHUCUIHUAJIHEZHUANGSHEREHUISHOUZHUANGZHIBINGQIEFEIYONGGAO,DANGHAIYUANJIDELIANGBUZUSHI,HUIYANZHONGYINGXIANGDUIDANYANGHUAWUDETUOCHUXIAOGUO,DANHAIYUANJILIANGGUODA,BUJINSHIYUANLIAOXIAOHAOZENGJIA,HAIHUIYINQICUIHUAJIBIAOMIANJITANBINGQIEZHEIZHONGFEIQICHULIGONGYICAOZUOFUZA,YINZAIZHEIXIENIANLIBEIZHUJIANTAOTAI,HENDUOFEIQICHULICHANGJIADOUGAIYONGXUANZEXINGCUIHUAHAIYUANFA。



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