Abstract
In the present study, the effect of ethanol blending on pollutant emissions in oxidation of ethanol-gasoline mixtures is numerically investigated. In doing so, a jet-stirred reactor (JSR) is considered and one representative of each class of constituting ethanol-gasoline (iso-octane, toluene and hexene as the representative of iso-paraffin, aromatic and olefin respectively) is considered. For validating the numerical results, the available experimental data are used in temperature range of 770–1,220 K, at 10 atm. In order to simulate combustion in JSR, the CHEMKIN II library code is used. Furthermore, a detailed kinetic scheme resulting from merging of validated data for the oxidation of the ethanol-gasoline components is used in the CHEMKIN II library code. Based on the numerical results, it is shown that emissions of CO and CO2 can be reduced with the addition of the ethanol. Furthermore, it is concluded that decreasing C/H ratio by ethanol addition leads to the increase of H2O concentration.
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