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SCRÓˇ

1. Óˇĺ

P(gun)NOXĿƷȼϵڵAȼǰȼкȼ(dng)ǰȼǰÓо׺еÓȼкȼNOXĿڇHϰȼNOXпƴʩy(tng)QһδʩȼNOXƴʩy(tng)QδʩַQ韟Óg(sh)
ĿǰձõȼNOXƼg(sh)NOXȼg(sh)ҪеNOXȼ՚ּȼȼϷּȼ
(yng)ȼúվ偠tϵij쟟Óg(sh)ҪxԴ߻߀ԭg(sh)Selective Catalytic ReductionQSCRxԷǴ߻߀ԭg(sh)Selective Non-Catalytic ReductionQSNCRԼSNCR/SCRϟÓg(sh)
2 .SCRÓg(sh)
xԴ߻߀ԭÓg(sh)(SCR)l(f)չ^,ښW޺ձõˏVđ(yng),Ŀǰ߻߀ԭÓg(sh)Ǒ(yng)ļg(sh)
1SCRÓ(yng)
ĿǰеSCRˇҪ֞鰱SCRطSCRɷN˃ɷNðNOX߀ԭڴ߻ŒNOX(ҪNO)߀ԭ錦]жӰ푵N2ˮ߀ԭNH3䲻ͬctطSCRһNO(sh)䌢D(zhun)鰱֮ݔSCR|ý(yng)D(zhun)Qķ錢עһֽ˷ֽṩطֽ֮ϕrgvrgضɴҷֽ֮a(chn)TɞSCR߀ԭͨ^|ýʩW(xu)(yng)ɰˮطֽзֽɰķПⷨˮⷨҪW(xu)(yng)ʽ飺
NH2CONH2+H2O→2NH3+CO2
ˇO(sh)Ӌͨʹl(f)Ȼϡጿ՚򟟚ϣ֮ͨ^ŇSCR(yng)εğ
SCR(yng)(ni)NOͨ^·(yng)߀ԭ
4NO+4NH3+O2→3N2+6H2O
6NO+4NH3→5N2+6H2O
(dng)r(yng)һʽ(yu)McNO߀ԭһһP(gun)ϵ
偠tğУNO2һsռNOXȵ5%NO2cķ(yng)£
2NO2+4NH3+O2→3N2+6H2O
6NO2+8NH3→7N2+12H2O
ɂ(yng)߀ԭNO2߀ԭNOҪİ
ڽ^(sh)偠tNO2HռNOXһС֣NO2Ӱ푲@
SCRϵy(tng)NOXÓЧܸͨ뵽еİ׺ȫNOX(yng)һСְ(yng)鰱x_˷(yng)һfµĴ߻ܵS߻ʧ߱汻wҸw͕ӣ˾SҪNOXÓͱӷ(yng)NH3/NOXĦȡ(dng)ܱCA(y)O(sh)ÓЧʺͣ򣩰ܘ(bio)(zhn)rͱڷ(yng)(ni)ӻQµĴ߻Ի֏(f)߻ĻԺͷ(yng)´߻_ʼʹõQ@ΕrgQ߻
2SCRϵy(tng)Mɼ(yng)
x߻߀ԭˇNOxcNH3ڴ߻®a(chn)߀ԭ߻һ̶ķ(yng)(ni)⴩^(yng)ƽ(jng)߻߻Ԫֱͨӡ
SCRϵy(tng)һɰăϵy(tng)c՚ϵy(tng)⇊ϵy(tng)(yng)ϵy(tng)ʡú·SCR·zyϵy(tng)ȽM

3.1 ăϵy(tng)

1ϵy(tng)M
Һϵy(tng)ҺжωsCҺ޵

߀ԭù܇\ݔڃރ档ڸ߉ҺԜpС\ݔ̓weЈُI߀ԭҺB(ti)99.6%,(yng)ùb܇\ݔҺwΑB(ti)ډ(ni)Aͨ^жdsCȡКⰱ냦޺܇еҺDҺAʹÕrеİԉݔ͵l(f)
· жdsC
жωsC(f)ʽsCϵy(tng)O(sh)ö_жdsCһ_\һ_
· Һ
O(sh)2_ҺɠtʹҺ޵***b25m³޽Mɹ(yng)_tO(sh)Ӌlÿ\24СrBm(x)\7ҺϰbгyֹyoP(gun)yͰȫy郦ްȫ\бo߀bМضӋҺλӋ(yng)׃̖͵wCMDCSϵy(tng)(dng)ރ(ni)ضȻߕrܰbйI(y)ˮܹܾ(dng)ރ(ni)Һض^ߕrԄˮbÆMЇܽ
3.2עϵy(tng)
1ϵy(tng)M
עϵy(tng)l(f)⾏_ϡጲUˮUˮصȡ

ҺB(ti)ԉݔ͵l(f)l(f)(ni)ͨ^ӟᣩl(f)ÿl(f)bЉy≺≤2kg/cm2(dng)ډ^2kg/cm2rД๝(ji)yֹͣҺ(yng)l(f)l(f)İM백⾏_ޣͨ^ݔ͹ܵÿһ_tSCR(yng)bÿ՚ϡጸߝȟoˮ@Ӱ/՚ﰲȫҲȼͨ^bSCRڟ(ni)İעţ/՚ע뵽SCRϵy(tng)(ni)
3ҪO(sh)x
· Һl(f)
Һl(f)Ҫğɵ͉ṩO(sh)жҺl(f)ۣһһ䣩l(f)bаȫyɷֹO(sh)䉺^Һl(f)eBMCRr†_CM100O(sh)Ӌ
· ⾏_
⾏_۵üڷ(wn)Ĺ(yng)l(f)۲(wn)Ӱ_ҲаȫyɱoO(sh)
· ϡጲ
ϡጲ۞ʽˮۣˮ۵ҺλɝMܾSϡጲO(sh)ӋBY(ji)ɲˮ(c)MˮҺϵy(tng)ŷ̎ųİɹܾRϡጲ۵ͲMͨ^ɢ܌ɢϡጲˮôˮհȫyŷŵİ
· ϡL(fng)C
偠tİ՚ϡጺĺ5ҰĻϚwxL(fng)CMÓNOx***ֵҪ󣬲һϡL(fng)C_һ_100һһ䣩O(sh)ã_xʽϡL(fng)C
·/՚
ˌF(xin)ϡጿ՚ijĻϣ
· й©zy
Һ漰עϵy(tng)߅O(sh)3ֻzyԙzyй©@ʾаĝ(dng)zyyôа^ߕrڙCMҕl(f)ˆTȡҪĴʩԷֹй©Įrl(f)늏SҺ漰(yng)עϵy(tng)hxCMȡʩc܇h(hun)x
· ϵy(tng)
Һעϵy(tng)İŷŹ·һ]ϵy(tng)(jng)ɰϡጲճɰUˮŷUˮٽ(jng)ɏUˮSUˮ̎վ
· ⴵ
Һ漰עϵy(tng)ϵy(tng)ć(yn)Էֹй©Ͱc՚ĻɱըP(gun)Iİȫ}ڴ˷Ŀ]ϵy(tng)жωsCҺޡl(f)⾏_޵ȶеⴵ߹ܾҺж֮ǰͨ^ⴵ߹ܾO(sh)քeҪMЇ(yn)ϵy(tng)(yn)ԙz͵ⴵֹй©cϵy(tng)КĿ՚ΣU
3.3 SCR(yng)ϵy(tng)
1ϵy(tng)M
SCR(yng)͸ϵy(tng)ɓTעšSCR(yng)߻ϵy(tng)͟ȽMɡ

ɰ/՚ϡጰͨ^עŵĶ럟עźğbôMͰĻϣCаȵľֲ
偠tʡúڵğͨ^SCR(yng)SCR(yng)߻ڴ߻NH3cNOX(yng)ĶÓNOX߻MNOXķ(yng)SCR(yng)Ÿʹӟֲ߻bģKMУڰ\b͸Q⽛(jng)^Ó^̺(jng)՚A(y)պMo늳mFGDϵy(tng)⡣
SCR(yng)߻gbÁeڴ߻ϵĻ҉mSCR(yng)a(chn)Ԝpٷ(yng)
SCRˇҪָ(bio)УÓЧ(yng)ĉ
SCRˇҪO(sh)Ӌ(sh)д߻߻߶ȡ߻϶ʺ͟ٶȵ
ȼú偠tSCRÓbô߻O(sh)Ӌ(sh)Ҋ±
ȼú偠tSCRÓbô߻O(sh)Ӌ(sh)

Ŀ

Cʹ߻

ʹ

߻ú

ͻú

ΉK߻ה(sh)

400

441

529

 

gࣨmm

7.4

7.0

6.4

6.9

ȱeO/ m3

427

470

500

285

϶ʣ%

69

71

67

82

kpa/m

0.2

0.21

0.27

0.1

 

3ҪO(sh)x
· SCR(yng)
(yng)ˮƽΰbП⌧(do)(yu)ֲbԼćڷ(yng)Qֱbд߻
(yng)ù̶ֱͨʽb2A(y)1λãδÓЧʵڱCֵrb߻ԴÓЧʲLЧ|ýĂôʩ
ÓЧʰ80%O(sh)Ӌ߻ģKߴL1901mm×952mm×1100mmܣ偠tÓ(yng)ÿӲ21ģK3×7֮gg߶Ȟ3.4mÿӴ߻ǰĥpwҌ߻ě_ˢáÿ(yng)3O(sh)Ӌ\гڃHb2ӡÿ_tO(sh)һ(yng)
(yng)ֱʽ䓽Y(ji)(gu)(ni)O(sh)|ý֧νY(ji)(gu)ܳ܃(ni)ؓ(f)mؓ(f)ɡ|ýؓ(f)ɺ͟ᑪ(yng)(yng)ⲿO(sh)мӹ߼،ӡ|ýͨ^(yng)|ýbϵy(tng)Ă(c)T뷴(yng)(ni)
·
ʹڟоֲұڌ(yng)еһӴ߻ϷNH3/NOxĦȵ{(dio)MڟϵĺmλO(sh)Çš(yng)ź͇׵ϵy(tng)й(ji)y(ji)װ塣ڌNOxMBm(x)ͬr{(dio)(ji)ҪİćЇ
3.4 Óbÿw
ÓҪ(gu)ÓbҺB(ti)A͹(yng)ϵy(tng)Ę(gu)
ƶÓbò÷r(yng)]O(sh)䣺
— SCR(yng)
— ܵ
— c偠tʡúͿ՚A(y)“(lin)
— oO(sh)
3.4.1ԭt
— Ҏ(gu)ĬF(xin)÷rO(sh)λÑ(yng)ԓҪĹ܁]MySoͰȫԡ
—SCR(yng)÷(yng)ԓ]偠tϰbÓbõҪÓϵy(tng)IJòӰ푌bòúʩ
—һ_偠tO(sh)һSCR(yng)
—SCR(yng)m(dng)?sh)ĿgÁO(sh)^ڴ߻ģKİbͲ
—߻ģĶA(y)Ŀg
—ͨ(yng)ԓMBm(x)еҪͨSʽCP܇ͨ]D(zhun)Ӱ돽
3.4.2w÷x
1SCR(yng)IJ÷ʽ
ڟ/߻ҲSCR(yng)λʡúͿ՚A(y)֮gԓ^(q)򟟚ض300-400ķ(ni)偠tʡúͿ՚A(y)֮gğضԓ(ni)Ͻ^(sh)ȼú늏SSCRbò@Nfʽ
@N÷ʽҪ(yu)cͶY\Mõԓεğضc߻Ҫ\зϡ@NõҪȱcǴ߻¶ںȫ҉mֵğ@N÷ʽҪǺ2%ğúl(f)偠t
SCRϵy(tng)ҪğضȞ330415SCR(yng)ʡúͿ՚A(y)֮g
½SCRϵy(tng)䓽Y(ji)(gu)(j)늏SF(xin)yṩYڲûȕrҪ]Уԭ偠t䓼ܻA(ch)ĺd
2ҺB(ti)A͹(yng)
(j)ʯͻI(y)O(sh)ӋҎ(gu)(GB50160-92)P(gun)Һw޷gҪ:վ(yng)ԓxa(chn)Sa(chn)O(sh)20mxɢl(f)𻨵c25mxȫSҪO(sh)ʩ30mx\ݔ?sh)·SlOm
޲ڰ¶ежdsCD(zhun)ӵęCеO(sh)Լ늚O(sh)䲼ڰ߅Ľ(gu)(ni)
l(f)_A޾ڃ߅Ę(gu)(ni)÷ϡጿ՚L(fng)C/՚(yng)ÿһ_偠t
·:ҺB(ti)A͹(yng)Ľ(gu)γh(hun)·Ʉ·cS^(q)·B
Һݔ͹ܵʽ
ȫSÓbõĿϵy(tng)S҃(ni)

SNCRÓg(sh)

SNCRÓg(sh)xԷǴ߻߀ԭSelective Non-Catalytic ReductionºSNCRg(sh)һNô߻8501100Ĝضȷ(ni)߀ԭ簱ˮҺȣt(ni)еNOx߀ԭÓɵˮ坍Óg(sh)

SNCRÓg(sh) 

ںmĜضȅ^(q)Ұˮ߀ԭr䷴(yng)ʽ飺

4NH3 + 4NO + O2→4N2 + 6H2O 1 
Ȼ(dng)ض^ߕrҲl(f)¸(yng)
4NH3 + 5O2→4NO + 6H2O2 
SNCRÓg(sh)ÓЧһ30%80%偠tY(ji)(gu)ߴӰ푺ܴ󡣲SNCRg(sh)Ŀǰڅش氱߀ԭ
 
2.SNCRÓԭ
SNCRg(sh)Óԭ飺
8501100淶(ni)NH3߀ԭNOxҪ(yng)飺
NH3߀ԭ: 4NH3+?4NO+O2→4N2+6H2O
؞߀ԭ:NO+CO(NH2)2+1/2O2→2N2+CO2+H2O
 
3.SNCRÓϵy(tng)M
SNCRϵy(tng)Ҫжϵy(tng)ޅ^(q)Ӊüϵy(tng)ϵy(tng)c{(dio)(ji)ϵy(tng)Fϵy(tng)ȽMɡSNCRϵy(tng)Ó^Ă^ɣ պ̓߀ԭ偠tmλעϡጺ߀ԭ߀ԭӋݔcˮϡ߀ԭcMÓ(yng)
 
4.SNCRÓˇ
߀ԭ (ˮ) ÿ܇\ͣÓϵy(tng)߀ԭAƂ߀ԭͨ^Ӌ估F՚Fs󣬇tŜضȞ800桫1100ą^(q)ԓ߀ԭѸֽٟNH3a(chn)SNH3cеNOxMз(yng)N2
朽ӣ
ɽ|U̎ ɽ|U̎O(sh) U̎O(sh)
 

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