The mixture described below is being incinerated at 1000
C
with 50% excess
air and a residence time of 2.1 seconds. Principal Organic Hazardous
Constituents (POHCs) for this waste are benzene, chlorobenzene, and toluene.
The flow rate of gas from the incinerator is measured at 450 m3 /min at dry
standard conditions. The mole fraction of
O2
in the stack gas is 14%.
a) Determine if this emission meets requirements for
- POHCs
- Particulates
- HCl
b) Comment on the results
Compound Inlet (kg/h) Outlet (kg/h)
Benzene 2015 0.537
Chlorobenzene,
C H Cl 6 5
1150 0.109
Toluene 637 0.022
Xylene 3040 1.25
HCl - 10.7
Particulates - 2.5
Molar mass of HCl: 36.5 g/mol
Y
X
P
c
P
m
21
21
X: mole fraction of O2 corrected to the dry conditions
Y: mole fraction of O2 in the stack gas
