An Experimental Study on the Effect of Nitrogen Functionality on N2O and NOx Emissions in Fluidized Bed Combustion.
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概要
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To elucidate the effect of nitrogen functionality of coals on N<SUB>2</SUB>O and NO<SUB>x</SUB> emissions, five kinds of model compounds, such as pyridine, pyrrole and aniline, were burnt with kerosene or coal in an experimental fluidized bed having 0.16m inner diameter and 3m height.<BR>No remarkable difference in N<SUB>2</SUB>O and NO<SUB>x</SUB> emission levels was found among the mod- el compounds in spite of the different nitrogen functionality. Furthermore, simulteneous formation of HCN and NH<SUB>3</SUB>, which would be of precursors respectively for N<SUB>2</SUB>O and NO<SUB>x</SUB> formation reactions, in the combustor was recognized in all of the combustion experi- ments. These results suggest the existence of the conversion reactions such as NH<SUB>3</SUB> formation from HCN in the fluidized bed. The ratio of fuel-nitrogen conversion to N<SUB>2</SUB>O was lower in model compounds/kerosene combustion in comparison with model compounds/coal combustion, while the conversion ratio to NO<SUB>x</SUB> was higher in the former case.
- 一般社団法人 日本エネルギー学会の論文
一般社団法人 日本エネルギー学会 | 論文
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