NOx Reduction

NOx reduction potential in the calciner is strongly influenced by the fuels used. Staged combustion is an additional measure for NOx reduction.

Tertiary air is directed to the upstream part of the calcining channel below the swirl head, allowing staged combustion to take place. The maximum efficiency is achieved when an area with under stoichiometric combustion conditions is created in the lower calciner part.

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IKN Features

Low NOx for ICC

Tertiary air is divided, entering the lower and upper part of the calcining channel.