ٟl(f)늏Sʹðˮ߀ԭSNCRÓg(sh)ڇ(ni)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_ٟtğÓ(dng)?sh)ҪNOxŷҪ200 mg/Nm3֮ǰ650 mg/Nm3ć(bio)ҪҪ(yn)öҷˮ߀ԭSNCRÓg(sh)ȡõЧ
2SNCRÓg(sh)Ĺԭ
SNCRxԷǴ߀ԭselective non-catalytic reductionÓ NOxg(sh)ڛ]дڗlѺ 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)Mքe飺ˮ^(q)}ˮ^(q)ģK^(q)^(q)ģK^(q)ϵy(tng)ҪO(sh)Ҋ1
1 SNCRϵy(tng)ҪO(sh)
Tab.1.
ˮͳ}ˮM(jn)ģKģK(j)DCSӳ偠tضȼNOxȌҺĝM(jn){(dio)(ji)֮ډs՚tŜضȞ850桫1050ą^(q)ԓ߀ԭѸټӟֽNH3a(chn)SNH3cеNOx M(jn)SNCR(yng)N2ϵy(tng)ҊD1
ˮ
Ӌ
ģK偠t
}ˮ
D1 Óϵy(tng)D
Fig.1
4{(dio)ԇҪ
SNCRϵy(tng)ݔֵŷֵ
(1)L(fng)C(j)NOxСrֵ200mg/Nm3
(2)24Сrֵ10mg/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)ԇҪ(ni)ݣ
(1)ϵy(tng)ĸۙz_ϵy(tng)O(sh)䰲bo`
(2)늄O(sh)ԇ\(yn)Ҫˮ^(q)жdúݔͱԼ}ˮ^(q)ݔͱ
(3)ϵy(tng)йܵM(jn)ЉԇвP䓹ܵԇ|(zh)}ˮ\䓹ܵԇ|(zh)鉺s՚ԇO(sh)Ӌ1.5ԇrl(f)F(xin)©cҪrֱ̎ϵy(tng)(yn)ܲ©܉(wn)30ϡˮԇĹܵY(ji)És՚⌢ܵ(ni)ˮ߸Ƀ
(4)ϵy(tng)(ni)xM(jn)У(zhn)ԇҪˮ^(q)}ˮ^(q)ҺλӋˮ^(q)ĝȈ̽^׃ȫy
B(ti){(dio)ԇY(ji)
5.2.B(ti){(dio)ԇ^
ϵy(tng)ğB(ti){(dio)ԇҪ(ni)ݣ
(1)C(j)Mؓ(f)ɷ(wn)ھųͨ^βھO(jin)yϵy(tng)NOxȡضӋҪĻҺ
ˮc}ˮϣĝȡ
(2)ڟضؓ(f)ҪrעҺM(jn)Ó(j)ھO(jin)yϵy(tng)NOxą(sh)ҺĝM(jn){(dio)
(3)Óϵy(tng)M(jn)Ԅ\(yn)пƠB(ti)ͨ^׃ؓ(f)\(yn)ԇϵy(tng)(sh)M(jn)жęzM(jn)һ{(dio)ʹÓϵy(tng)\(yn)Ѕ(sh)_(d)O(sh)ӋҪ
6ע
ٟl(f)늏SʹSNCRÓg(sh)M(jn)ПÓ{(dio)ԇ^(yng)ԓעc}
(1)ˮćλõxNOxķֲڠtŌǽ(jng)׃c̫ٻt(ni)ijϵİtF(xin)ֲ^ߵİ©ʧӰÓЧԇćλҪǠt(ni)ЧIJλ
(2)ˮ^(q)İȈ̽^bɺҪðM(jn)ԇ_bùzyY(ji)(zhn)_
(3)һNȼױľиgԵΣUW(xu)Ʒ{(dio)ԇˆT{(dio)ԇ֮ǰ(yng)ԓJ(rn)RˮcԣϤ|P(gun)¹ʓk(j)ΣUW(xu)ƷȫlҎ(gu)ƶ(yng)ԮA(y)ҪP(gun)ˆTͷo(h)
7Ч
̵ğSNCRÓ̎ą(sh)2ʾָ(bio)ȫ_(d)O(sh)ӋҪ
2
Tab.2