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Primary Measures to Reduce the Emissions of Nitrogen Oxide in Circulating Fluidized Bed Boilers

Bo Leckner (Institutionen för energiomvandling) ; Lars-Erik Åmand (Institutionen för energiomvandling)
In proceedings of the Swedish Flame Days held 8-9 September 1987 in Studsvik, Sweden (1987)
[Konferensbidrag, övrigt]

During the combustion of coal in a circulating fluidized bed boiler the conversion of the fuel­bond nitrogen to either nitrogen oxides or nitro­gen can be influenced by design and operational measures. The paper gives a summary of results obtained in a series of tests on a 40 MW circulating fluid­ized bed boiler in Nykoping, designed by Gota­verken Energy. In this commercial boiler it was not possible to study the influence of primary to secondary air addition independent of the bed temperature. For this reason, a smaller boiler designed by the same manufacturer was adapted to permit independent variations of the primary air ratio and the bed temperature. The results from the 40 MW and the 8 MW boilers are compared and the influence of the distribution of the air supply and of the bed temperature on the reduction of nitrogen oxide emissions are dis­cussed.

Nyckelord: fluidized bed boilers, Nitric oxide, NOx, primary measures

The "Swedish Flame Days" held in September 1987 in Studsvik, Sweden was organized by the Swedish section of the International Flame Research Foundation (IFRF).

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Denna post skapades 2016-06-29. Senast ändrad 2016-08-15.
CPL Pubid: 238629


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