200333
Liu Guangtao Feng bo Zhi Ruimin Guo Hanjun (Shanghai Lvhui Environmertal Technology Co., Ltd.,
Shanghai 200333)
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Abstract The impact of nitrogen oxides emission from different stationary sources was analysed and
compared whilst a recovery process for nitrogen oxides was proposed including its flow chart. The oxidation and
absorption processes of nitrogen oxides were also expounded, and the way for resource utilisation of absorption
products was analysed.
Key words: Stationary sources Nitrogen oxides Resource utilisation
NO x `
NO 2`
`NO x`
NO x`
`NO x `
NO x`
1.1 NO x `
`NO 2`
`1`
NO x`
`NO x `
[1 4]
NO x `
`NO x`
[5]
[5]
`3`
`600
`NO x `
`NO x`
`60
80
800
`NO x`
` N O x`
` N O x`
`30
`NO x
`NO`
`1`
`T`
`T
SCR
1 500
T`
SNCR
NO`
`T
`100
`6
7`
`CH`
`NO x `
`SNCR
`SCR`
`2`
`NO x `
220
`NO x`
`N 2 `
`HCN`
`N
`NO x`
1986`
`NO x
2011`
1 500
`60`ms
`NO x `
`N 2 `
`O 2 `
`NO x
`1 650
[5]
1.2
`NO x`
2 000
NO x`
[6]
1.3
`NO x `
`NO x`
` N O x`
`NO x`
`1`
`NO x`
`2`
`1`
`NO x`
`NO x`
`NO x`
`3 300`mg/Nm
3
`NO x `
`50 `
SCR
`1 450
`2 200
SNCR
3`
`NO x`
`2
350
1 300
(GB13223 2011)
100
600
1 400
(GB4915 2004)
800
1 600
3 300
100
400
200
600
500
800
700
GB26453 2011
300
(
200
)
(
NO x
400
)
SCR
SNCR
NH x
NO x
NH x
NO x
NO x
NO x
N2
800
NH 3
NO x
N2
800
30
NO x
1 400
50
NH 3 /NO x
800
300
450
70
90
30
50
0.4
1.0
0.8
2.5
`1`
1 100
`NO 2
`NO 2 `
NO x`
`80 `
H 2O
`NO x `
`NO`
`3 300`mg/Nm
1 100
H 2O
3
`700`mg/Nm
`SCR`
3
2.2 NO`
`NO x`
`NO 2
`NO`
`90 `
NO`
NO x `
2.1 NO x `
`NO x `
`NO`
221
`HNO 3`
2.3.2
`HNO 3 `
`NO x
`NO x`
3NO 2 `+`H 2 O`
`NO 2
`O 2 O 3 `
NO`
`NO`
` H N O 3`
`O 2 `
`HNO 3 `
2NO`+`O 2 `
4
NO`
`HNO 3 KMnO 4 H 2 O 2 `
NO`
`2HNO 3 `+`NO
`2NO 2
`NO x
1
2NO`+`HNO 3 `+`H 2 O`
3HNO 2 `
`O 2`
`3HNO 2 `
5
`HNO 3 `+`2NO`+`H 2 O
[7]
[10]
r A )=kc A c B
rA
2
A`
2
`NO
`NO x [11]
k
c A`
`NO`
`c B
A NO
`O 2`
0.35`MPa
`O 2`
`NO 2`
[8]
`200
`H 2 O`
`NO`
`NO 2`
`100 `
`NO 2
`NO 2 `
`HNO 3 `
20
NO 2 `
NO`
`NO 2
`B O2
`NO 2 `
2
`NO x`
`5
[9]
`H 2O
12
`6`
`150
`O 2 `
`NO`
`NO 2`
`NO 2 `
`H 2O
`NO 2
2.3 NO x`
` H N O 3`
2.3.1 NO x `
`45
[11]
`NO x
`1`
`NO 2
Higbie`
`Danckwerts`
N`=`K Y ` Y` `Y*
`NO x `
3
`48
2.3.3
N
`98.58
[12]
`NO x
KY
Y
NO2
Y*
3
Y` `Y*
222
`NO x `
`NO 2 `
[13]
`H 2 O
KOH
Ba OH
2
NaOH
Ca OH
NaHCO 3
Na 2 CO 3
2
K 2 CO 3
KHCO 3
`NaOH Na 2 CO 3 `
`NaOH`
NO 2 `
6
7
`NO`
NO 2 `+`NO`+`2NaOH`
2NO 2 `+`2NaOH`
`2NaNO 2 `+`H 2 O
6
`NaNO 2 + NaNO 3 `+`H 2 O
7
`Na 2 CO 3 `
8
Na 2 CO 3 `
`NaOH`
2NO 2 `+`Na 2 CO 3 `
9
`NaOH`
`NaNO 2 + NaNO 3 `+`CO 2
NO 2 `+`NO`+ Na 2 CO 3
`2NaNO 2 + CO 2 `
9
10
12
8
11
`NO x`
2NH 3 +2NO 2
NH 4 NO 3 +N 2 +H 2 O
4NH 3 +4NO+O 2
2NH 4 NO 2 +2N 2 +2H 2 O`
4NH 3 +4NO 2 +O 2
2.3.4
10
11
2NH 4 NO 3 +4NO+2H 2 O`
2.4
`HNO 3`
12
`NO x`
`NO x `
`NO x
TBP
TBP`
PEG
`NO x`
`TBP-NO x`
`NO x `
TBP
[14]`
TBP
`NO x `
`NO x
`NO x`
`TBP`
`NO x`
TBP-NO x`
`1`
`TBP-N O x
`98 `
`P`
TBP`
TBP-NO x `
`TBP-NO x`
[15]
PEG
`
Polyethylene Glycol
`300
`NO x`
`NO 2
`PEG-NO x`
`PEG`
[15]
`NO 2 `
`NO 2
`PEG NO 2 `
`150`r/min
`2`
`70
40`min`
`40`min`
`1.5`h`
`92 `
60`min`
6.27`mol/mol
PEG`
`43 `
`NO 2 `
`PEG`
N O 2`
40`min`
SNCR`
PEG`
`NO 2 `
`NO 2 `
`1`
`2`
`SCR
`NO x`
`NO x`
(
229
223
)
-
-
-
-
-
-
-
2014 10 13
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223
)
`NO x `
`1`
TBP PEG`
-
-
2014 04 17
229