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干法脱硫和湿法脱硫有什么区别?

发表时间:2019-12-25 17:05  来源:本站
湿法脱硫和干法脱硫是目前主要的两种脱硫方法,它们之间的差异主要体现在以下几个方面:
 
一、干法烟气脱硫

 

  

干法烟气脱硫是指采用粉末或颗粒状吸收剂、吸附剂或催化剂从烟气中脱除二氧化硫。具有工艺简单、无污水和酸处理、能耗低,特别是净化后烟气温度高的优点,有利于烟囱排气扩散,无“白烟”现象,净化后的烟气不需要二次加热,腐蚀性小;其缺点是脱硫效率低,设备大,投资大,占地面积大,运行技术要求高。主要方法如下:

 

安徽快3 GENJUSUOYONGXIFUJIDEBUTONG,XIFUJIZHUSHEFAKEFENWEIGAIJIHENAJILIANGZHONGGONGYI。XIFUJIKEYISHIGANDE、SHIDEHUOJIANGZHUANGDE,PENSHEWEIZHIKEYISHILUZI、SHENGMEIQIHEYANDAO。DANGGAILIUBIWEI2SHI,GANFATUOLIUXIAOLVWEI50%-70%,GAILIYONGLVWEI50%。ZHEIZHONGFANGFAGENGSHIHEYULAODIANCHANGDEGAIZAO,YINWEIZAIDIANCHANGDEPAIQIGUOCHENGZHONG,BUXUYAOTIANJIARENHESHEBEIJIUKEYIDADAOTUOLIUDEMUDE。

 

JIECHUYANGHUAFAYUGONGYESUANSHENGCHANFANGFAXIANGTONG,YIERYANGHUAGUIWEIZAITI,WUYANGHUAERFANHUOLIUSUANJIAWEICUIHUAJI,YANGHUASO2WEISO3。SO3YUSHUIZHENGQIFANYINGSHENGCHENGLIUSUANHUOANSHENGCHENG(NH4)2SO4。ZHEIZHONGFANGFASHIYIZHONGGAOWENCAOZUO,XUYAOHENGAODECHENGBEN。DANYOUYUQIJISHUCHENGSHU,ZAIGUONEIWAIGAONONGDUYANQICHULIZHONGDEDAOGUANGFANYINGYONG。

 

安徽快3 GAIFANGFAGONGYIJIANDAN。TALIYONGGAONENGDIANZISHUYUANDEGUANGHUAXUEFANYINGZUOWEIXISHOUJI。YANQIZAIFANYINGQIZHONGZHAOSHEHOU,YANQIFENJIECHANSHENGDALIANGDEQINGYANGHEYANGYUANZI,CUJINYANQIZHONGERYANGHUALIUHEDANYANGHUAWUSHENGCHENGLIUSUANHEXIAOSUAN,ZAIYUANSHUIFANYING,XINGCHENGLIUSUANANHEXIAOSUANANDEHUNHEWU,YONGZUONONGYONGFEILIAO。

 
二、湿法烟气脱硫

 

 

  

SHIFAYANQITUOLIUSHIZHILIYONGYETIXISHOUJI(RUSHUIHUOJIANXINGRONGYE)QUCHUYANQIZHONGDEERYANGHUALIU。JUYOUTUOLIUXIAOLVGAO、SHEBEIXIAO、TOUZIDI、CAOZUOFANGBIAN、YIKONGZHI、ZHANDIMIANJIXIAODENGYOUDIAN,DANYIZAOCHENGERCIWURAN、FEISHUIHOUCHULIWENTI、NENGHAOGAO,TEBIESHIXIDIHOUYANQIWENDUDI,BULIYUYANCONGPAIQIPENGZHANG,YICHANSHENG“BAIYAN”,XUYAOERCIJIARE,FUSHIYANZHONGDENG,ZHUYAOFANGFARUXIA:

 

安徽快3 SHIHUISHI-SHIGAOFASHILIYONGSHIHUISHI/SHIHUISHIJIANGYEXIDIYANQI,SHIQIYUSO2FANYINGSHENGCHENGYALIUSUANGAI(CaSO3)。FENLIDEYALIUSUANGAIKEYIBEIFEIQI,HUOZHEKEYIQIANGZHIJINRUKONGQIZHONGYANGHUA,BINGQIEKEYITIANJIAYIXIETIANJIAJIYISHIGAOXINGSHIHUISHOU。WEILEJIANGDISO2XIDISHEBEIDEFUHE,SHOUXIANDUIYANQIJINXINGCHUCHEN,RANHOUJINRUCHUCHENSHEBEIYUXISHOUYEFANYING。SHIHUI/SHIHUISHI-SHIGAOFAGONGYIBIJIAOCHENGSHU,XISHOUJILIANJIAYIDE,CAOZUOKEKAO,YINGYONGZUIGUANGFAN,TUOLIUXIAOLVKEDA90%YISHANG。

 

安徽快3 GAIFANGFACAIYONGQINGYANGHUANA、TANSUANNAHUOYALIUSUANNARONGYEZUOWEIXISHOUJI,XISHOUYANQIZHONGDESO2。YOUYUGAIFANGFAXISHOUSO2SUDUKUAI,QIEGUANDAOHESHEBEIBUYIDUSAI,YINCIDEDAOLEGUANGFANDEYINGYONG。GAIXISHOUJIJINGWUHAIHUACHULIHOUKEFEIQIHUOSHIDANGCHULI,DEDAOFUCHANPINNaSO3JINGTI、SHIGAO、LIUSUANDENG。

 

安徽快3 MEIFADEDAIBIAOGONGYIYOUXIDEwilhlm-GrilloGONGSIFAMINGDEJILILUOFAHEMEIGUOHUAGONGJIANSHEGONGSIFAMINGDEKAIMIKEFA。

 

安徽快3 ZAIJILILUOFAGONGYIZHONG,CAIYONGXISHOUXINGNENGHAO、YIYUZAISHENGDEMgxMnOyZUOWEIXISHOUJIXISHOUYANQIZHONGDESO2。GAIFAFUCHANWULIUSUANDENONGDUKEDA98%。KAIMIKEFANGFA,YECHENGWEIYANGHUAMEIFA,CAIYONGLIANGGEWENQIULICHUCHENQICHUANLIAN,YICHUQUYANQIZHONGDEXIAOFENCHENKELI,BINGYONGMgORONGYEXISHOUYANQIZHONGDESO2。JIANGXISHOUGUOCHENGZHONGXINGCHENGDEmgso4.7h2oHEmgso4.6h2oJINGTIYUJIAOTANZAI1000℃XIAJIAREFENJIE,DEDAOSO2HEMgO。ZAISHENGHOUDEYANGHUAMEIKEYIZUOWEIXISHOUJIZAILIYONG。

 

安徽快3 ANFASHIYIANSHUIWEIXISHOUJI,XISHOUYANQIZHONGDEERYANGHUALIU,QIZHONGJIANCHANWUWEIYALIUSUANANHEYALIUSUANQINGAN。CAIYONGBUTONGDEFANGFACHULIZHONGJIANCHANWU,HUISHOULIUSUANAN、SHIGAO、DANTILIUDENGFUCHANWU。

 

安徽快3 GAIFANGFAYITIANRANLINKUANGSHIHEANSHUIWEIYUANLIAO,FUCHANWUWEIYANQITUOLIUGUOCHENGZHONGDELINSUANANFUHEFEI。GONGYILIUCHENGZHUYAOBAOKUOSIGEGONGXU:HUOXINGTANYIJITUOLIUZHIBEIXILIUSUAN;YONGXILIUSUANCUIQULINKUANGZHIBEIXILIUSUANRONGYE;LINSUANHEANZHONGHEYE[(NH4)2HPO4]ERJITUOLIU;NONGSUOGANZAOKUANGJIANGZHIBEILINSUANANFUHEFEI。TUOLIUXIAOLVDA95%YISHANG。


安徽快3 通过以上分析可知,湿法脱硫的主要优点是运行成本低、效率高,但耗水量相对较大。干法脱硫的优化不消耗水资源,但脱硫效率不是很理想。这个要根据具体情况来掌握使用哪种脱硫方法。

 

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