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SCR脱硝

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SCR脱硝

产品信息

SCR脱硝 设计要求

    CAIYONGSCRGONGYI,TUOXIAOGONGYIYAOSHIYONGYUGONGCHENGJIQUEDINGDERANLIAOTIAOJIAN,BINGKAOLVRANLIAOLAIYUANDEBIANHUAKENENGXINGJIHUANBAOYAOQIUTIGAODEKENENGXING;

    CAIYONG20%ANSHUIZUOWEITUOXIAOHAIYUANJI;

    YANQITUOXIAOZHUANGZHIDEKONGZHIXITONGKEJINRUZHUJIKONGZHIXITONG;

亿乐彩    YANQITUOXIAOXIAOLV≥90%;

    TUOXIAOZHUANGZHIKEYONGLVBUXIAOYU98%,FUWUSHOUMINGWEI15NIAN;

    CAIYONGCHENGSHUDESCRGONGYIJISHU,SHEBEIYUNXINGKEKAO;

亿乐彩    GENJUGONGCHENGDESHIJIQINGKUANGJINLIANGJIANSHAOTUOXIAOZHUANGZHIDEJIANSHETOUZI;

亿乐彩    TUOXIAOGONGYITUOXIAOHAIYUANJI、SHUIHENENGYUANDENGXIAOHAOSHAO,JINLIANGJIANSHAOYUNXINGFEIYONG;

亿乐彩    YANQITUOXIAOBUNENGYINGXIANGJIZUGONGLVJIZHENGCHANGYUNXING,TONGSHI,YANQITUOXIAOXITONGYINGJUBEIDANDUYUNXING、DANDUJIANXIUDEYAOQIU;

    WOFANGZHENGGEWANCHENGTUOXIAOXITONGDESHEJI、ZHIZAO、ANZHUANG、DIAOSHI、SHIYANJIJIANCHA、SHIYUNXING、KAOHE、ZUIZHONGJIAOFUDENG。

反应原理

亿乐彩    SCRDEQUANCHENGWEIXUANZEXINGCUIHUAHAIYUANFA(Selective Catalytic Reducation)。CUIHUAHAIYUANFASHIYONGANHUONIAOSUZHILEIDEHAIYUANJI,ZAIYIDINGDEWENDUXIATONGGUOCUIHUAJIDEZUOYONG,HAIYUANFEIQIZHONGDENOx(NO、NO2),JIANGNOxZHUANHUAFEIWURANYUANSUFENZIDAN(N2),NOxYUANQIDEFANYINGRUXIA:

亿乐彩    4NO + 4NH3 + O2 → 4N2 + 6H2O

    6NO2+8NH3→7N2+12H2O

亿乐彩    SCRXITONGBAOKUOCUIHUAJIFANYINGQI、HAIYUANJIZHIBEIXITONG、ANPENSHEXITONGJIXIANGGUANDECESHIKONGZHIXITONG。SCRGONGYIDEHEXINZHUANGZHISHICUIHUAJIHEFANYINGQI,YOUWOSHIHELISHILIANGZHONGBUZHIFANGSHI,YIBANCAIYONGLISHIJIAODUO。

SCR反应器本体

亿乐彩    SCRFANYINGQIBENTIYIYANQILIUXIANGKEFENWEIPENANDUAN、HUNHEDUAN、JUNLIUDUAN、FANYINGDUAN。SCRTUOXIAOXIAOLVYUYIXIAYINSUYOUGUAN:CUIHUAJIZHILIANG;FANYINGWENDU;TINGLIUSHIJIAN;ANDANBI;ANQIYUYANQIHUNHEJUNYUNCHENGDU;YANQIZAISCRFANYINGQINEIFENBUJUNYUNCHENGDU。

    WEIDADAOJIAOGAODETUOXIAOXIAOLV,SHEJIMEIGEGONGNENGDUANSHIBIXUKAOLVYISHANGYINSU,MEIGEHUANJIEJUNYOUHUASHEJI。ZAIBENXIANGMUZHONG,SHEJIJINRUSCRXITONGDEYANQIWENDUWEI300-400℃。

    立式SCR反应器上方烟气流向需要转90°角度,均流器前烟道不仅短,而且也有多个影响气流的局部构件。安装均流器空间小,为使进入催化剂层的烟气分布均匀,均流器采用导流板加均流格栅板形式,导流板和格栅板依据CFD数值模拟计算结果进行设计。保证进入催化剂层的烟气流速均匀程度σ<0.2。

催化剂

    MUQIANCHANGYONGDECUIHUAJIXINGSHIZHUYAOWEIFENGWOSHIHEBANSHI。 FENGWOSHISHIMUQIANSHICHANGZHANYOUFENEZUIGAODECUIHUAJIXINGSHI,QITEDIANSHIDANWEITIJIDECUIHUAJIHUOXINGGAO,DADAOXIANGTONGTUOXIAOXIAOLVSUOYONGDECUIHUAJITIJIJIAOXIAO,SHIHEHUIFENDIYU30g/m3,HUIZHANXINGJIAOXIAODEYANQIHUANJING。

    BANSHICUIHUAJIDESHICHANGZHANYOUFENEJINCIYUFENGWOSHICUIHUAJI。BANSHICUIHUAJIYIJINSHUBANWANGWEIGUJIA,BIBIAOMIANJIJIAOXIAO。CIZHONGCUIHUAJIDETEDIANSHI:JUYOUJIAOQIANGDEKANGFUSHIHEFANGDUSAITEXING,SHIHEYUHANHUILIANGGAOJIHUIZHANXINGJIAOQIANGDEYANQIHUANJING。QUEDIANSHIDANWEITIJIDECUIHUAJIHUOXINGDI、XIANGDUIHEZAIGAO、TIJIDA,SHIYONGDEGANGJIEGOUDUO。

    SCRJIANYICAIYONGLISHIJIEGOU,ZAISCRBENTINEIZISHANGZHIXIAKEBUZHI3CENGCUIHUAJI,3CENGCUIHUAJICAIYONG2+1PEIZHIFANGSHI,CHUQIBUZHIERCENGCUIHUAJI,YULIUZENGJIAYICENGCUIHUAJIWEIZHI,YICENGWEICUIHUAJIJINGGUOZHANGSHIJIANDEYUNXING,TUOXIAOXIAOLVXIAJIANG,WUFADADAOPAIFANGYAOQIU,KEZAIYULIUWEIZHIZAIANZHUANGYICENGCUIHUAJI。

    CUIHUAJIDEXUANYONGJIFANYINGSHIJIANSHIYINGXIANGTUOXIAOXIAOLVDEZHUYAOYINSU,WEIBAOZHENGCHENGGONGSHISHI,CAIYONGYIYOUCHENGGONGYINGYONGYEJIDECUIHUAJI,CUIHUAJIDESHULIANGYANGEANCHANGJIAYAOQIUJINXINGSHEJI,BINGSHIDANGKAOLVYULIANG。CUIHUAJISHIYONGSHOUMINGWEI24000XIAOSHI。

SCR脱硝催化剂性能参数表

 

项目
单位
数据
性能性能
脱硝效率
%
>90
化学寿命内SO2氧化率
%
<1
化学寿命内NH3氧化率
ppm
<=5
允许运行温度内化学寿命
h
>=24000
催化剂设计参数
催化剂类型
 
蜂窝式
催化剂比表面积
㎡/m³
455
催化剂孔内流速
m/s
3.7
化学寿命期内催化剂层总压降
Pa
1000
允许运行温度内机械寿命
5
设计运行温度
300-400
SCR入口烟气要求
催化剂允许最大温升速度
℃/min
5
催化剂允许最大温降速度
℃/min
5
SCR入口要求烟气速度偏差
%
10

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keywords: 废气处理 ,废气处理设备废气净化设备