The effect of biodiesel fatty acid composition on combustion and diesel engine exhaust emissions

Effects of both blended and pure biodiesel on waste heat recovery potentiality and exhaust emissions of a small CI (compression ignition) engine

“…This behaviour is due to both the lower aromatic content in the biodiesel and the higher content of oxygen that reduces the possibility of soot precursor formation and enables a more complete combustion even in fuel rich regions of the combustion chamber. Additionally, fuel borne oxygen enhances the oxidation of any formed soot [34]. It is interesting to highlight that at high engine speed B50 emits larger number of particles than diesel fuel.…”

Oil Content and Fatty Acids Composition during Seeds Storage of Two Ecotypes of <i>Jatropha curcas </i>L<i>.</i> from Mali

“…This ratio with a high level of oleic acid (monounsaturated fatty acid) may have an excellent effect on biodiesel properties. [19].The higher amount of monounsaturated fatty acids is better for biodiesel feedstock than polyunsaturated fatty acids [15].…”

Extending the environmental benefits of ethanol–diesel blends through DGE incorporation

“…In 259 fact the order of particle number emissions from highest to lowest exactly mirrors the order obtained for 260 the soot emissions (see Figure 3 and 4). The decreased particle numbers for the oxygenated blends are 261 often associated with the increased oxygen content that promotes particle precursors and particle oxidation 262 [14][22],[31], [49]-[50] while the individual differences in particle numbers between the four blends can be 263 explained by the same reasons as for the differences in soot emissions outlined above. As can be observed 264 in Figure 7 (d), EGR greatly increases the number of particles and especially the proportion of larger 265 particles as a result of lower oxygen availability and higher particle agglomeration.…”