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锅炉烟气脱硫脱硝技术方案
2016-01-19 15:54:02

广西大自然壁高高新装饰材料有限公司

年生产4000万平方米新型节能、环保墙体装饰材料项目

——10t/h锅炉烟气脱硫脱硝技术方案

(征求意见稿)

一、10t/h锅炉烟气现场调查

(一)燃煤质量状况

BIAOSHIFUHAO

ZHIBIAOMINGCHENG

DANWEI

YUJIZHIBIAO

BEIZHU

R

RANMEIFARELIANG

DAKA

4500

A

MEIZHONGHUIFEN

%

25

S

RANMEIQUANLIUFEN

%

3.8

C

RANMEIZHONGTANHANLIANG

%

80

O

RANMEIZHONGYANGHANLIANG

%

6

H

RANMEIZHONGQINGHANLIANG

%

4

W

RANMEIZHONGSHUIFEN

%

10

(二)锅炉烟气预计排放量

XIANGMUFUHAO

DIAOCHAXIANGMUMINGCHENG

DANWEI

YUJIZHIBIAO

ω

GUOLUZHENGDUNWEI

t/n

8

t1

JIEKOUCHUWENDU

25

υ

JIEKOUYANQILIUSU

m/s

2

D

JIEKOUDUANMIANZHANG×KUAN

cm×

44×44

Q

YANQILIULIANG

m3/h

26342

QN

BIAOTAIGANYANQILIULIANG

Nm3/h

18679

V0

KONGQILILUNXUYAOLIANG

Nm3/kg

2

QY

KONGQISHIJIXUYAOLIANG

Nm3/kg

3

q

HUANPINGYANQIYANSUANLIANG

m3/t

2610

(三)锅炉烟气中污染物预计排放

XUHAO

XIANGMUMINGCHENG

CHUSHISHENGCHENGLIANG

ZUIZHONGPAIFANGLIANG

NIANDUJIANPAILIANG

YAOQIUXITONGTUOCHUXIAOLV

Kg/h

mg/Nm3

Kg/h

mg/Nm3

(DUN)

DADAO%

1

YANCHEN

148

1453

2

18

1056

97.55

2

SO2

126

1238

5

44

878

95.4

3

NOx

10

99

3

33

48

65.4

(四)锅炉烟气脱除效率难点分析

江西11选5DANGDIHUANBAOBUMENDUIBENXIANGMUTICHUDEZUIXINYAOQIU

江西11选5MUQIANGUONEI60t/hYIXIAGUOLUAC-GTsxDEPINGJUNXIANJINSHUIPING

DADAOBENXIANGMUZHIBIAODENANYICHENGDU

KONGZHIXIANGMU

TUOCHUXIAOLV

(%)

排放标准(mg/Nm3

(%)

YANCHEN

97.55

80

99

YI

SO2

95.4

200

96

YI

NOx

65.4

150

47

NAN

(五)建议

 “60t/hYIXIADEGUOLUSHISHIJIANGDANTUOXIAOBUDIYU40%”,GENJUXINGYEGUIDING,BENXIANGMUDEZUIZHONGPAIFANGZHIBIAOKEFOUDINGWEIBUDIYU200mg/Nm3。

二、烟气脱硫脱硝技术方案选择

(一)业主的要求

GUANGXIDAZIRANBIGAOGAOXINZHUANGSHICAILIAOYOUXIANGONGSIDICHUGUILINSHIXINGANXIANGONGYEJIZHONGQUC2QU,SHIYIJIAHUANBAOJIENENGBIZHISHENGCHANQIYE,YEZHUTICHULERUXIAYAOQIU:

1、ZAISHISHIGUOLUYANQIJIANGDANTUOXIAOTUOLIUGONGCHENGSHIBUDEYINGXIANGGUOLUDEZHENGCHANGYUNZHUAN;

2、JIANZAOTUOLIUTUOXIAOSHESHIYINGSHELIZAIYINFENGJIYIXIAQUDUAN,QUEBAOYUANYOUGUOLUXITONGBUSHOUFUSHI;

江西11选53、JIANCHENGDETUOLIUTUOXIAOXITONGDEYUNXINGXIAOGUOBIXUDADAOHUANBAOJUTICHUDESUOYOUKONGZHIYAOQIU。

(二)项目选择脱硫脱硝技术方案的原则思考

YOUYUXIANDAIXIANJINDETUOLIUTUOXIAOJISHUDOUBUKENENGDUIYANQIZHONGDEDANHELIUSHISHI100%DETUOCHU,SUOYIJINGJINGHUAHOUDEYANQIZHONGRENGRANHAIHUICANLIUWEILIANGDEDANHELIU,YUSHUIHUAHEHOUXINGCHENGSUANXINGYE,DUIHOUXUGUANDAOHESHEBEIZAOCHENGFUSHI。YINCI,XINPEIZHIDETUOLIUTUOXIAOSHEBEIYINGSHIYIGEXIANGDUIDULIDEYUNXINGTIXI,XIANGMUJIHUACAIYONGYARUSHIJIANGYANQISONGJINTUOLIUTUOXIAOXITONG,YANQIBEIJINGHUAHOUZHIJIESONGRUYANCONG。

BUZAIJINGDIANCHUCHENQIYISHANGDEYANDAOZHONGFUJIARENHETUOXIAOSHESHI。JUXIANGGUANYANJIU:YINTUOXIAOCHANSHENGDESHUIZHENGQIHUIYULIUHUAQITIJIEHE。ZAIYANQIWENDUZHUJIANXIAJIANGZHI150℃SHIJIUHUICHUXIANJIELUXINGCHENGQIANGSUAN,FUSHIHOUXUSHEBEIHEGUANDAO,TONGSHISHENGCHENGDE(NH4)2SO4HENH4HSO4YEHUIFUSHIHEDUSAIHOUXUSHEBEI。

ZAIZHENGGETUOLIUTUOXIAOXITONGZHIZUOANZHUANGGUOCHENGZHONGBUYINGXIANGGUOLUDEZHENGCHANGYUNXING,QUEDAZIRANBIZHIGONGSIZAISHIGONGQIJIANHUODEXIAOYIZUIDAHUA,SHIGONGSUNSHIZUIXIAOHUA。ZUODAOJINZAIZUIHOUTUOLIUTUOXIAOXITONGJINQIGUANDAOYUYINFENGJIPAIQIKOUDUIJIESHIYINGXIANG1~2TIANGUOLUYUNXING。

江西11选5SUIZHEHUANBAOYAOQIUDERIYIYANGE,CHUANTONGDEYANQITUOLIUTUOXIAOGONGYIJIANGBUNENGMANZUYANGEDEJIANPAIYAOQIU。YINCI,ZAIXUANZEGAIYANQITUOLIUTUOXIAOJISHUFANGANSHIYINGKAOLVCAIYONGDUOZHONGXIANJINCHENGSHUJISHUDEWANMEIZUHECAINENGQUEBAOHUANBAOBUMENTICHUDEYANGEKONGZHIYAOQIUHEYEZHUTICHUDEYINQIEQIWANGDEYICHONGFENSHIXIAN。

(三)几种脱硫脱硝成熟技术比较

 

SHIYONGXINGJITEDIAN

YOUDIANYUBUZU

TUOXIAOLV

TOUZI

SCR

江西11选5SHIHEPAIQILIANGDA,LIANXUPAIFANGYUAN

江西11选5ERCIWURANXIAO,JINGHUAXIAOLVGAO,JISHUCHENGSHU;SHEBEITOUZIGAO,GUANJIANJISHUNANDUJIAODA,YAOQIUYANQIWENDUGAO,BUNENGTUOLIU,YANQIYIJIELUFUSHIHOUXUSHEBEIHEGUANDAO。

TUOXIAO80%~90%

GAO

SNCR

SHIHEPAIQILIANGDA,LIANXUPAIFANGYUAN

江西11选5BUYONGCUIHUAJI,SHEBEIHEYUNXINGFEIYONGSHAO;NH3YONGLIANGDA,ERCIWURAN,NANYIBAOZHENGFANYINGWENDUHETINGLIUSHIJIAN,YAOQIUYANQIWENDUGAO,BUNENGTUOLIU,YANQIYIJIELU、FUSHIHOUXUSHEBEIHEGUANDAO。

TUOXIAO30%~60%

YUNXINGFEIYONGGAO

LoTOx

江西11选5CHULIYANQILIANGZHONGDENGDEQINGKUANGKEQU

江西11选5CHOUYANGYANGHUATUOXIAOJISHUSHIMEIGUODEYIXIANGZHUANLIJISHU、TUOXIAOGONGKUANGWENDING、XIAOLVGAO,YIKONGZHI。SHIYIZAIXIANGDUIDIWENTIAOJIANXIAJINXINGHUAXUEFANYING。DANCHOUYANGFASHENGQIJIAGEANGGUI。

TUOXIAO80~95%

YUNXINGFEIYONGJIAOGAO

LPCFA

江西11选5SHIHEPAIQILIANGDA,LIANXUPAIFANGYUAN

TOUZISHENG,YUNXINGFEIYONGDI,WUERCIWURAN,XITONGDULI,BUFUSHIYANQIJINGHUAXITONGYIWAIDEQITASHEBEI,HUISHOUBUFENDANZIYUAN,CAOZUOJIANDANKEKAO、TUOXIAOXIAOLVWENDING。YONGYEANZUOTUOCHUJIBUBIANCHUYUN

TUOXIAO40%~50%TUOLIU95%YISHANG

YUNXINGFEIYONGJIAODI

(四)关于锅炉烟气脱硫脱硝技术组合的思考

TONGGUOYISHANGSIZHONGCHENGSHUJISHUBIJIAO,XIANGMUYOURUXIASIKAO:

江西11选5SCR、SNCRLIANGXIANGJISHUSUIRANYOUJIAOGAODETUOXIAOXIAOLV,DANMEIYOUTUOLIUGONGNENG,YANQIWENDUXIAJIANGDAOYIDINGCHENGDUSHIHUIJIELU,DUIHOUXUSHEBEIYOUYIDINGDEFUSHIZUOYONG,ZAIBENXIANGMUZHONGBUYICAIYONG。

LoTOxJISHUTUOXIAOXIAOLVGAO,SHIMUQIANGUOWAIYIZAIGONGCHENGSHANGDEDAOYINGYONGDEDIWENYANGHUAJISHU,ZHISHIYOUYUCHOUYANGSHEBEIZAOJIAGAO、CHOUYANGFASHENGFEIYONGGAOERBUNENGBEIGUANGFANSHIYONG。DANDUIBENXIANGMUHAISHIYOUYIDINGDECANKAOLIYONGJIAZHI。

LPCJISHUSHIYIXIANGYANQIAC-GTsxYITIHUAJISHU,TONGGUOCUIHUAYANGHUAZUOYONGJIANGYANQIZHONGDENOBUFENYANGHUAWEINO2,ZAIJIEHEANFATUOLIUJISHU,SHIXIANYANQIDETONGSHIAC-GTsx,DUIBENXIANGMUYOUYIDINGDECANKAOLIYONGJIAZHI。

三、烟气脱硫脱硝技术方案的确定

(一)技术方案的组合形式

WEILEJINKENENGYANZHANGGUOLUSHEBEIDESHIYONGSHOUMING,SHIQIBUYINSHISHITUOLIUTUOXIAOJISHUERZAOSHOUFUSHI。TONGSHIYOUSHIGUOLUYANQITUOLIUTUOXIAOQUANBUDADAODANGDIDEHUANBAOTICHUDEYANGEYAOQIU,GUANGXIDAZIRANBIGAOGAOXINZHUANGSHICAILIAOYOUXIANGONGSIGUOLUYANQITUOLIUTUOXIAOJISHUFANGANDEZUHEXINGSHISHI:XUANYONGLPCJISHUZHONGDE《ANFATUOLIUJISHU》SHOUXIANDUIYANQIJINXINGGAOXIAOLVTUOLIUHECHUBUTUOXIAOCHULI,ZHIHOUCAIYONGLoTOxJISHUDUINOJINXINGYANGHUACHULI,ZHIHOUZAIYONGPENLINJISHUJIANGYIYANGHUACHENGYIRONGYUSHUIDENO2、N2O3、N2O5DENGGAOJIATAIDANYANGHUAWUJINXINGYEXIANGSHOUJI。ZAIPENLINYEDEZUOYONGXIAFASHENGHUAXUEFANYINGSHENGCHENGSHUIHEXIAOSUANYAN,HAIYUANDANQI(ZAIZHEILIXIANGMUKEYIGENJUHUANBAOBUMENTICHUDETUOXIAOYAOQIUHEGENJUCHOUYANGYUYIYANGHUADANDEMOERBIQUEDINGDECHOUYANGXUYAOLIANGLAIXUANZESHIDANGDAXIAODECHOUYANGFASHENGSHEBEI)。YANQIJINGTUOXIAOHOUJINRUCHUWUQU,JINGCHUQUYANQIZHONGDESHUIWUHOUZHIJIESONGJINYANCONGPAIRUDAQI。

(二)技术方案的名称与含义

江西11选5BENJISHUFANGANDEMINGCHENGJIAOZUO“ANSHUI——CHOUYANGZUHEGAOXIAOTUOLIUTUOXIAOJISHUFANGAN”。JIAC—GTSXJISHUFANGAN。QIJIBENHANYISHI:A——ANSHUI、C——CHOUYANG,GTSX——GAOXIAOTUOLIUTUOXIAO。GAIJISHUDETUCHUTEDIANSHICAIYONGMUQIANYIJINGSHIFENCHENGSHUDEERQIEJUYOUHENGAOTUOCHUXIAOLVDE“ANFATUOLIUJISHU”(A—GTS)SHOUXIANJIEJUEGUANGXIDAZIRANBIGAOGAOXINZHUANGSHICAILIAOYOUXIANGONGSIDEGAOLIUMEIDEYANQITUOLIUWENTI,TONGSHIBAYANQIZHONGYIJINGSHIGAOJIATAIDEDANYANGHUAWUTUOCHUDIAO,ZHIHOUCAIYONG“CHOUYANGYANGHUAJISHU”(C—GTX),LIYONGCHOUYANGDEQIANGYANGHUATEXING,JIANGNOYANGHUACHENGGAOJIATAIDEDANYANGHUAWU,ZAIYONGANSHUIPENLINSHOUJI,BINGSHIQIYUANSHUIFANYINGSHENGCHENGXIAOSUANYANHUOYUSHUIFANYINGHAIYUANDANQI,DADAOTUODANDEMUDE。(ZHEIXIANGJISHUMUQIANYEYIJINGSHIFENCHENGSHU,ZHISHIYINWEICHOUYANGDEFASHENGFEIYONGJIAOGAO,ZHIYUELETADESHIJIYINGYONG)

四、AC—GTSX技术脱硫脱硝的基本原理

(一)A—GTS高效脱硫、低倍脱硝原理

江西11选51、ANSHUIXISHOUERYANGHUALIU、SANYANGHUALIU

ZAIQIXIANGFANYINGWANCHENGHOU,SHENGYUDEANRONGYUSHUIZHONG,LIYONGXUNHUANBENGJINGWUHUAPENZUIPENRUYANQIZHONG,XISHOUYANQIZHONGSO2 HESO3 ERXINGCHENGANYAN,JUTIFANYINGRUXIA:

SO2 + H2O-→H2SO3江西11选5                                     1

H2SO3+ NH3-→(NH4)2SO3江西11选5                                2

(NH4)2SO3+NOx-→(NH4)2SO4+N2                          3 SO2+H2O+2NH3+1/2O2-→(NH42SO                     4

2(NH4)2SO3+SO3+H2O-→(NH4)2SO4+2NH4HSO3江西11选5              5

4NH3+2NO2+O2→6H2O+3N2                                6

NH4HSO3 + NH4OH →(NH4) 2SO3 + H2O                   7

2、TUOLIU、TUOXIAOJINENGZAIXUNHUANXITONGZHONGFANFUZAISHENG。

(NH42SO3 + SO2 + H2O → 2NH4HSO3江西11选5                     8

2NO + 4NH4HSO3 →N2 + 2(NH4)2SO4 + 2H2SO             9

H2SO3+ NH3-→(NH4)2SO3                                10

(NH42SO3 + SO2 + H2O → 2NH4HSO3                     11

2NO + 4NH4HSO3 →N2 + 2(NH4)2SO4 + 2H2SO3江西11选5              12

江西11选5JIANGZHEIYANGDETUOXIAOJIJINGGAODUWUHUAHOUPENRUYANQIZHONG,YOUYICIXISHOUYANQIZHONGDENOx、SO2,BINGJIANGYIJINGSHIQUTUOXIAO、TUOLIUNENGLIDELIUSUANANDAIRUSHUIZHONG,SHISHUIZHONGLIUSUANANRONGYEDENONGDUBUDUANSHENGGAO。

江西11选53、A—GTSTUOLIUCHUCHENYITIHUAXITONGHAIJUYOUTUOTANGONGNENG

江西11选5DANGFEIQIZHONGHANYOUO2 、CO SHI ,HAIHUIFASHENGRUXIAFANYING;

NH4OH + CO2 →NH4HCO3                                 13

2(NH4)2SO3 + O→2(NH4)2SO江西11选5                              14

2NH4HSO3 + O2 →2NH4HSO4江西11选5                               15

4、DUILIUHUAQINGDEXISHOU

YANQIZHONGYOUH2S CUNZAISHI,ANSHUIXISHOUH2S ,JIANGQIHAIYUANCHENGDANZHIS;FANYINGRUXIA:

NH4OH + H2S →NH4HS + H2江西11选5O                             16

JINGCUIHUAYANGHUA,ANSHUIZAISHENG,BINGDEDANZHILIU。

2NH4H2S + O2 →2NH4OH + 2S                             17

5、DUIDANYANGHUAWUDEZHUANHUA

江西11选5ANSHUI、NH4HSO3HEYANQIZHONGDENOx FASHENGFANYINGSHENGCHENGDANQI:

2NO + 4NH4HSO3 →N2 +2(NH4)2SO4 +2H2SO3江西11选5                18

4NH+ 4NO + O2 →6H2O + 4N2                             19

4NH3 + 2NO2 + O2 →6H2O + 3N2江西11选5                            20

(二)C—GTX高效脱硝原理

1、CHOUYANGDEYANGHUATEXING

CHOUYANGDEYANGHUANENGLIJIQIANG,CONGXIABIAOKEZHI,CHOUYANGDEYANGHUAHAIYUANDIANWEIJINCIYUFU,BIGUOYANGHUAQING、GAOMENGSUANJIADENGDOUGAO。

      MINGCHENG

XIANGMU

FU

CHOUYANG

GUOYANGHUAQING

GAOMENGSUANJIA

ERYANGHUALV

LV

YANG

FENZISHI

F2

O3

H2O2

KMnO4

ClO2

Cl2

O2

BIAOZHUNDIANJIDIANWEI

(mv)

2.87

2.07

1.78

1.67

1.50

1.36

1.23

江西11选5CIWAI,CHOUYANGDEFANYINGCHANWUSHIYANGQI,SUOYITASHIYIZHONGGAOXIAOQINGJIEDEQIANGYANGHUAJI。CHOUYANGTUOXIAODEYUANLIZAIYUCHOUYANGKEYIJIANGNANRONGYUSHUIDENOYANGHUACHENGYIRONGYUSHUIDENO2、N2O3、N2O5DENGGAOJIATAIDANYANGHUAWU。

2、CHOUYANGDEHUAXUEFANYINGJILI

江西11选5CHOUYANGDEXIANGXIHUAXUEFANYINGJILIBIJIAOFUZA。ZAISHIJIYUNYONGZHONG,KEGENJUDIWENTIAOJIANXIACHOUYANGYUNODEGUANJIANFANYINGJINXINGDIAOSHI。DIWENTIAOJIANXIA,O3YUNOZHIJIANDEGUANJIANFANYINGRUXIA:

NO+O3→NO2+O2                                    (1)

NO2+O3→NO3+O江西11选5                                   (2)

NO3+NO2→N2O江西11选5                                    (3)

江西11选5NO+O+M→NO2+M                                  (4)

NO2+O→NO3                                        (5)

3、CHOUYANGTONGSHITUOLIUTUOXIAOYANJIUGAIKUANG

JUZHEJIANGDAXUEWANGZHIHUADENGDUICAIYONGCHOUYANGYANGHUAJISHUTONGSHITUOLIUTUO

XIAOJINXINGDESHIYANJIEGUOBIAOMING,ZAIDIANXINGYANQIWENDUXIA,CHOUYANGDUINODEYANGHUAXIAOLVKEDA84%YISHANG,JIEHEWEIBUSHIFAXIDI,TUOLIULVJIN100%,TUOXIAOXIAOLVYEZAIO3/NOMOERBIWEI0.9SHIDADAO86.27%,NOHEHg0DETUOCHULVYUO3DEZHURULIANGYOUGUAN,DANGO3JIARULIANGWEI200ppmSHI,NODETUOCHUXIAOLVKEDADAO85%,CIGONGYIDUINOHESO2DETUOCHULVZUIGAOKEFENBIEDADAO97%HE100%。

江西11选54、CHOUYANGTONGSHITUOLIUTUOXIAODEZHUYAOYINGXIANGYINSU。

(1)MOERBI

江西11选5MOERBI(O3/NO)SHIZHIO3YUNOZHIJIANMOERSHUDEBIZHI,TAFANYINGLECHOUYANGLIANGXIANGDUIYUYIYANGHUADANLIANGDEGAODI。NODEYANGHUALVSUIO3/NODESHENGGAOZHIXIANSHANGSHENG。MUQIANYIYOUDEYANJIUZHONG,ZAI0.9≤O3/NO<1DEQINGKUANGXIA,TUOXIAOLVKEDADAO85%YISHANG,YOUDESHENZHIJIHUDADAO100%;ZAISHIJIZHONG,YOUYUQITAWUZHIDEGANRAO,KEFASHENGYIXILIEQITAFANYING,RUSHI(2)~(5),SHIDEO3BUNENG100%YUNOJINXINGFANYING。

(2)WENDU

江西11选5YOUYUCHOUYANGDESHENGCUNZHOUQIGUANXIDAOTUOLIUTUOXIAOXIAOLVDEGAODI,SUOYIKAOCHACHOUYANGDUIWENDUDEMINGANXINGJUYOUZHONGYAOYIYI。SUOYOUSHIYANDOUBIAOMING,CHOUYANGSUOCHUDEHUANJINGWENDUYUEGAOFENJIEYUEKUAI,WENDUYUEDIFENJIEYUEMAN。ZAI150℃DEDIWENTIAOJIANXIA,CHOUYANGDEFENJIELVXIANGDUIJIAODI。ZAI25℃SHICHOUYANGDEFENJIELVZHIYOU0.5%,CHOUYANGDEBANSHUAIQIKEDA15MIAO。

(3)FANYINGSHIJIAN

CHOUYANGZAIYANQIZHONGDETINGLIUSHIJIANZHIYAONENGGOUBAOZHENGYANGHUAFANYINGDEWANCHENGJIKE,YINWEIGUANJIANFANYINGDEFANYINGPINGHENGZAIHENDUANSHIJIANNEIJIKEDADAO,BUXUYAOJIAOZHANGDECHOUYANGTINGLIUSHIJIAN。FANYINGSHIJIAN1MIAOZUYI。JUHUABEIDIANLIDAXUEHUANJINGXUEYUANMASHUANGCHENDENGRENDEJISHUWENXIANZHENGSHI:ZAI1~10000MIAOZHIJIAN,DUIFANYINGQICHUKOUDENOMOERSHUMEIYOUSHENMEYINGXIANG,ERQIEZENGJIATINGLIUSHIJIANBINGBUNENGZENGDANODETUOCHULV。

江西11选55、 CHOUYANGYANGHUAJISHUDEGONGCHENGYINGYONG

C—GTXSHIYIZHONGDIWENYANGHUAJISHU,JIANGYANG/CHOUYANGHUNHEQIZHURUZAISHENGQIYANDAO,JIANGNOXYANGHUACHENGGAOJIATAIQIEYIRONGYUSHUIDENO2HEN2O5,RANHOUTONGGUOANSHUIXIDIBINGSHIQIYUANSHUIFANYINGSHENGCHENGXIAOSUANYAN,HUOYUSHUIFANYINGHAIYUANDANQI。

ZHUYAODEFANYINGRUXIA:

NO+O3→NO2+O2                                   (6)

2NO2+O3→N2O5+O2江西11选5                                 (7)

N2O5+H2O→2HNO3江西11选5                                 (8)

4NH3 + 2NO2 + O2 →6H2O + 3N2江西11选5                      (9)

4NO2+ 4NH3•H2O+O2 →4NH4NO3 + 2H2江西11选5O              (10)

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