Emissions of nitrogen oxide from a circulating fluidized bed boiler--the influence of design parameters
Paper in proceeding, 1988

In a circulating bed of silica sand, char is the principal agent for the reduc­tion of nitrogen oxide. The role of volatiles is not significant. Most features observed can be qualitatively explained as a consequence of the presence of char.In a circulating bed with limestone addition, the oxidation of nitrogen containing volatiles causes an increased emission of nitrogen oxide. This effect can be mitigated by avoiding excess addition of limestone in relation to the sulphur content of the fuel or by arranging the air supply in a suitable way, thus de­creasing the oxidation of ammonia.


Nitrogen oxide emission

Primary and secondary air

Air supply

Circulating fluidized bed


Lars-Erik Åmand

Department of Energy Conversion

Bo G Leckner

Department of Energy Conversion

In Circulating Fluidized Bed Technology II, Proceedings of the Second International Conference on Circulating Fluidized Beds, Compiégne, France, 14-18 March 1988

0-08-036225-7 (ISBN)

Driving Forces

Sustainable development

Subject Categories

Energy Engineering

Other Environmental Engineering

Areas of Advance



Chalmers Power Central



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