Answer to Question #104740 in Chemical Engineering for christine

Question #104740
The stack gas from a boiler furnace contains 10.8 % CO2, 0.2 % CO, 9.0 % O2 and 80.0 % N2. These gases enter the stack at 400 oC; 500 kg of coal are burnt per hour. The proximate analysis of the coal as fired is 1.44 % moisture, 34.61 % volatile mater, 57.77% fixed carbon, and 6.18 % ash, and the heating value is 33.3 kJ/g. An analysis for carbon and sulfur shows these to be 78.76 % and 0.78 % respectively. Furthermore, it is known that coal from the same field averages 1.3 % N. The volatile matter of the refuse (dry) is 4 % and fixed carbon 21 %. Air in the boiler room has a temperature of 25 oC
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