Emission of Nitrogenoxides from Combustion of Hydrogen-Hydrocarbon Mixture
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概要
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This study concerns with a basic research on NO<I><SUB>x</SUB></I> emission from flames of the fuels consisted of H<SUB>2</SUB> and various typical hydrocarbons (CH<SUB>4</SUB>, C<SUB>3</SUB>H<SUB>8</SUB>, C<SUB>3</SUB>H<SUB>6</SUB>, C<SUB>2</SUB>H<SUB>2</SUB>).<BR>The NO<SUB>x</SUB> emission from H<SUB>2</SUB> flame significantly decreased with an increase of airpremixing, in contrast with ordinary hydrocarbons which give the more NO<SUB>x</SUB><I></I> emission by the more air-premixing.<BR>Without air premixing, linear relationships between the logarithum of NOx level and the H<SUB>2</SUB> equivalence fraction in the mixed fuel were found. There are some extent of advantageous feature of mixing combustion of H2 with some hydrocarbons for the NO<I><SUB>x</SUB></I> depression. By a small addition of C<SUB>3</SUB>H<SUB>8</SUB> to H<SUB>2</SUB> for example, the NO<SUB>x</SUB> level easily decreased by 200-300ppm.<BR>On the other hand in highly air-premixed combustion, H<SUB>2</SUB> flame was extremely lower in NO<I><SUB>x</SUB></I> emission than every hydrocarbons in these experiments. In these cases the addition of hydrocabon to H<SUB>2</SUB> always caused an increase of the emission of NO<I><SUB>x</SUB></I>.
- 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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