Formula: C10H22OIn 2015, Koivisto, Elina;Ladommatos, Nicos;Gold, Martin published 《Systematic study of the effect of the hydroxyl functional group in alcohol molecules on compression ignition and exhaust gas emissions》. 《Fuel》published the findings. The article contains the following contents:
This paper present the results of experiments conducted in a single cylinder compression ignition research engine to investigate the performance of various alc. fuel mols. Alcs. of C8-C16 chain lengths were tested and the results of these experiments were compared with those for corresponding hydrocarbon mols. Alcs. had higher ignition delays than the various hydrocarbons tested. This is believed to be due to the increased difficulty of both hydrogen abstraction and isomerization, caused by the higher electronegativity of the oxygen atoms in alcs. compared to carbon atoms. Addnl., the location of the hydroxyl group was found to affect ignition delay; mols. in which the hydroxyl group was closer to the center of the carbon chain were observed to have longer ignition delays. In addition, both higher degree of unsaturation and Me branching were shown to increase the ignition delay of alcs., as was expected. Due to higher ignition delays, alc. combustion resulted in higher in-cylinder temperatures than those corresponding to hydrocarbon combustion, giving rise to greater NOx emissions. In the case of exhaust particulate matter, a shift was observed for alcs. towards a greater number of nucleation particles, in comparison to corresponding alkane mols. To complete the study, the researchers used 3,7-Dimethyloctan-3-ol (cas: 78-69-3) .
3,7-Dimethyloctan-3-ol(cas:78-69-3) is a fatty alcohol that is 3-octanol substituted by methyl groups at positions 3 and 7.Formula: C10H22O Metabolite observed in cancer metabolism. It has a role as a human metabolite.
Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts