Environmental Engineering Reference
In-Depth Information
103
3.98E+11
0
23450
HCl+NO
2
Cl+HNO
2
=
104
HCl+NO
Cl+HNO
1.58E+13
0
50280
=
105
HCl+O
3
HOCl+O
2
2.83E+00
0
0
=
106
F+F
F
2
9.68E+10
1.0
6340
=
F+H
2
O
2
HF+HO
2
107
=
3.00E+13
0
0
108
F+HNO
3
=
NO
3
+HF
3.61E+12
0
790
109
F+NH
3
=
NH
2
+HF
1.63E+15
1.6
240
110
F+HO
2
O
2
+HF
5.00E+13
0
0
=
111
F+H
2
H+HF
6.62E+13
0
890
=
112
O
3
+H
2
S
H
2
O+SO
2
1.58E+12
0
5210
=
113
H
2
S
S+H
2
1.90E+14
0
65380
=
114
CO+OH
CO
2
+H
1.51E+07
1.3
758
=
NO
2
+NO
3
N
2
O
5
115
=
7.98E+17
3.9
0
116
N+NO
2
=
O+O+N
2
1.30E-01
0
0
117
NO
2
+SO
2
=
NO+SO
3
6.31E+12
0
27030
118
NO
2
+H
NO+OH
2.41E+14
0
680
=
119
NH+NO
N
2
+OH
3.53E+12
0.5
120
=
120
NO+NO
O
2
+N
2
3.10E+13
0
63190
=
NO
2
+N
2
1.73E+11 2.2 46300
Note: The rate constant is obtained from the Arrhenius Equation {
k
=
A
exp(−
E
/(
RT
))}, where
A
is
called pre-exponential,
E
is the activation energy,
T
denotes the system temperature, and
R
signifies
the gas constant
121
NO+N
2
O
=
As mentioned previously, definitely determining the most important
branched-chain reaction among these interrelated reactions facilitates to better
chose the elementary reaction and dynamics parameters, so as to ensure a more
precise reaction process modelling. Meanwhile, the dominant parameters
(including reaction rate sensitivity, density sensitivity, and temperature sensitivity),
which play a critical role in reactions, are taken into account carefully.
The sensitivity analysis generally has two categories, i.e., PCAF (the principal
component analysis of matrix
F
) and RIMP (the classic rate-of-production
analysis), of which PCAF is usually adopted.
The reaction rate sensitivity (denoted by
F
ij
here) can be defined as
∂
ln
f
F
=
i
,
ij
∂
ln
k
j
where
f
i
is the production rate of the component
I
, and
k
j
is the reaction rate of the
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