Carbon Monoxide

How Carbon Monoxide is formed and controlled.

How is Carbon Monoxide formed?

Complete combustion is the basic purpose of the plant design; this converts the carbon in the waste into carbon dioxide in the presence of sufficient air. If sufficient air is not present then there is a formation of carbon monoxide.

How is Carbon Monoxide controlled?

The plant has 7 sources of air supply into the furnace chamber. Five zones of primary air are introduced under and through the grate. The secondary and tertiary air is introduced into the chamber above the grate. The control of excess air ensures complete combustion, and prevents the formation of carbon monoxide. The flue gas is monitored for carbon monoxide before the gas-cleaning phase, and this feeds back to the combustion air system. This feedback controls the amount of air introduced into the furnace.

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