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ٟl(f)늏SSNCRÓˇ̈DˮÓλx

l(f)r(sh)g2021-12-20

ٟl(f)늏SSNCRÓˇ



ٟl(f)늏Sʹðˮ߀ԭSNCRÓg(sh)ڇ(ni)(xing)ĿܶUٟSSNCRÓg(sh){(dio)ԇ^ƹ̵{(dio)ԇṩһą

Ox һNҪĴȾ|(zh)NOx c̼?x)仯ڏ?qing)ɹ⻯W(xu)ȾŷŵеNOxγɳƉĵҪԭ(yn)ΣB(ti)h(hun)˾нijصٟl(f)늏S3_(ti)ٟtğÓ(dng)?sh)ҪNOxŷҪ200 mg/Nm3(du)֮ǰ650 mg/Nm3ć(bio)ҪҪ(yn)öҷ԰ˮ߀ԭSNCRÓg(sh)ȡõЧ

2SNCRÓg(sh)Ĺԭ

SNCRxԷǴ߻߀ԭselective non-catalytic reductionÓ NOxg(sh)ڛ]д߻ڗl£Ѻ NHx ߀ԭ(簱ˮص)tŜضȞ 850桫1050ą^(q)ԓ߀ԭѸֽٟ NH3 a(chn)S NH3 cе NOx M(jn) SNCR (yng) N2H2O

25%İˮ(NH3OH )߀ԭڜضȞ850桫1050ķ(ni)߀ԭ NOx ĻW(xu)(yng)ʽҪ飺


3NH3OH +NO+O22N2+6H2O

4NH3OH +2NO23N2+8H2O

3SNCRÓg(sh)š

SNCRϵy(tng)԰ˮ߀ԭ}ˮϡጄԓϵy(tng)^(q)Mɣքe飺ˮ^(q)}ˮ^(q)ģK^(q)^(q)ģK^(q)ϵy(tng)ҪO(sh)Ҋ1

1 SNCRϵy(tng)ҪO(sh)

Tab.1.

ٟl(f)늏SSNCRÓ̵{(dio)ԇg(sh)

ˮͳ}ˮM(jn)ģKģK(j)DCSӳ偠tضȼNOxȌ(du)ҺĝM(jn){(dio)(ji)֮ډs՚‡tŜضȞ850桫1050ą^(q)ԓ߀ԭѸټӟֽNH3a(chn)SNH3cеNOx M(jn)SNCR(yng)N2ϵy(tng)ҊD1

Ó

ˮ(ch)

Ӌ(j)

ģK偠t

(ch)

D1 Óϵy(tng)(jin)D

Fig.1

4{(dio)ԇҪ

SNCRϵy(tng)ݔֵŷֵ

(1)L(fng)C(j)NOxСr(sh)ֵ200mg/Nm3

(2)24Сr(sh)ֵ10mg/Nm3

5{(dio)ԇ^

SNCRÓϵy(tng){(dio)ԇҪB(ti){(dio)ԇ͟B(ti){(dio)ԇ

5.1.B(ti){(dio)ԇ^

ϵy(tng)B(ti){(dio)ԇҪƒ(ni)ݣ

(1)(g)ϵy(tng)ĸۙz_ϵy(tng)O(sh)䰲bo`

(2)늄(dng)O(sh)ԇ\(yn)Ҫˮ^(q)жdúݔͱԼ}ˮ^(q)ݔͱá

(3)(du)ϵy(tng)йܵM(jn)Љԇ(yn)вP䓹ܵԇ(yn)|(zh)}ˮ\䓹ܵԇ(yn)|(zh)鉺s՚ԇ(yn)O(sh)Ӌ(j)1.5ԇ(yn)r(sh)l(f)F(xin)©c(din)Ҫr(sh)ֱ̎ϵy(tng)(yn)ܲ©܉(wn)30ˮԇ(yn)ĹܵY(ji)És՚⌢ܵ(ni)ˮ߸Ƀ

(4)(du)ϵy(tng)(ni)xM(jn)У(zhn)ԇ(yn)Ҫˮ^(q)}ˮ^(q)ҺλӋ(j)ˮ^(q)ĝȈ(bo)̽^׃ȫy

B(ti){(dio)ԇY(ji)

5.2.B(ti){(dio)ԇ^

ϵy(tng)ğB(ti){(dio)ԇҪƒ(ni)ݣ

(1)C(j)Mؓ(f)ɷ(wn)ھųϣͨ^βھO(jin)y(c)ϵy(tng)NOxȡضȡӋ(j)ҪĻҺ


ˮc}ˮϣĝ

(2)ڟضؓ(f)ҪrעҺM(jn)Ó(j)ھO(jin)y(c)ϵy(tng)NOxą(sh)(du)ҺĝM(jn){(dio)

(3)Óϵy(tng)M(jn)Ԅ(dng)\(yn)пƠB(ti)ͨ^׃ؓ(f)\(yn)ԇ(yn)(du)ϵy(tng)(sh)M(jn)ж෽ęzM(jn)һ{(dio)ʹÓϵy(tng)\(yn)Ѕ(sh)_(d)O(sh)Ӌ(j)Ҫ

6ע(xing)

ٟl(f)늏SʹSNCRÓg(sh)M(jn)ПÓ{(dio)ԇ^(yng)ԓעŽc(din)}

(1)ˮćλõxNOxķֲڠtŌ(du)ǽ(jng)׃c(din)̫ٻ򇊵t(ni)ij(g)ϵİ򣬄t(hu)F(xin)ֲ^ߵİ©ʧӰÓЧԇćλҪǠt(ni)ЧIJλ

(2)ˮ^(q)İȈ(bo)̽^bɺҪðM(jn)ԇ(yn)_(bo)bùzy(c)Y(ji)(zhn)_

(3)һNȼױľиgԵΣU(xin)W(xu)Ʒ{(dio)ԇˆT{(dio)ԇ֮ǰ(yng)ԓJ(rn)R(sh)ˮcϤ|P(gun)¹ʓk(j)ΣU(xin)W(xu)Ʒȫ?xing)lҎ(gu)ƶ(yng)ԮA(y)ҪP(gun)ˆTͷo(h)

̵ğSNCRÓ̎ą(sh)2ʾ(xing)ָ(bio)ȫ_(d)O(sh)Ӌ(j)Ҫ

2

Tab.2

ٟl(f)늏SSNCRÓ̵{(dio)ԇg(sh)




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