Perfect Combustion:
* Flue Gas Components
* normality (N2)
* Carbon Dioxide (carbonic acid gas)
* Oxygen (O2)
* Carbon Monoxide (CO)
* nitrogen Oxides (NOx)
* Sulfur Dioxide (SO2)
* Unburned Hydrobarbons (CxHy)
* carbon black and Particulate Matter
Air Composition
* Combustion air consists of oxygen, atomic way out 7 and a small amount of trace gases and water vapor. The abstractive air requirement for complete combustion (Lmin) is not capable in general. More air (excess air, ExA, or ) must be supplied to the combustion process than is necessary .
* The proper mixture of raise and air under specific conditions where both oxygen and force out are completely consumed (Stochiometric point).
Complete Combustion:
* A manifold reacts with an oxidizing element, such(prenominal) as oxygen or fluorine, and the products are compounds of for each one element in the fire with the oxidizing element.
* For example:
* CH4 + 2 O2 ? CO2 + 2 H2O + Energy
* CH2S + 6 F2 ? CF4 + 2 HF + SF6
* Complete combustion is al virtually impossible to achieve.
* In reality, as actual combustion reactions come to equilibrium, a wide commixture of major and minor species will be present such as carbon monoxide and pure carbon (soot or ash).
* Additionally, any(prenominal) combustion in air, which is 78% nitrogen, will also puddle several forms of nitrogen oxides.
neither Combustion:
* In a complete combustion, the reactant burns in oxygen, producing a limited number of products.
* When a hydrocarbon burns in oxygen, the reaction will further hand over carbon dioxide and water.
* When elements are burned, the products are primarily the most common oxides. Carbon will yield carbon dioxide,
* Nitrogen will yield nitrogen dioxide,
* Sulfur will yield sulfur dioxide, and
* Iron will yield iron oxide.
* Incomplete combustion occurs when there isnt enough oxygen to allow the fuel to react completely to produce carbon dioxide and water.
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