Exercise IV
An annealing furnace uses a fuel oil containing  . Fuel is burnt with  excess air. Calculate the flue gas analysis, assuming complete combustion. Repeat the calculation assuming that  of the total carbon is burnt to  only.
Assume 100kg oil,  and 
Combustion equations:
Flue gas analysis
|
Kg moles |
% |
CO2 |
7 |
9.9 |
H2O |
8 |
11.4 |
N2 |
51.7 |
73.4 |
O2 |
37.5 |
5.3 |
Total |
70.45 |
100% |
|
Flue gas when 5% of total carbon is burnt to CO.
|
kg moles |
% |
CO2 |
6.65 |
9.4 |
CO |
0.35 |
0.5 |
N2 |
51.70 |
73.2 |
O2 |
3.93 |
5.6 |
H2O |
8.00 |
11.3 |
Total |
70.63 |
100.0 |
|
|
