Experimental and kinetic modeling study of methyl heptanoate low-temperature oxidation in a jet-stirred reactor was written by Zhai, Yitong;Feng, Beibei;Zhang, Yan;Mei, Bowen;Zou, Jiabiao;Yang, Jiuzhong;Zhang, Lidong;Sarathy, S. M.. And the article was included in Fuel in 2021.Quality Control of Methyl heptanoate The following contents are mentioned in the article:
Me heptanoate (MHP) is a potential surrogate component for fatty acid Me esters found in biodiesel. The carbon chain length of MHP is long enough to enable low temperature (low-T) reactivity and neg. temperature coefficient oxidation behavior during the combustion experiments, similar to the real biodiesel fuels. This paper investigated the low-T oxidation of MHP at 780 Torr and equivalence ratios of 0.5, 1.0 and 1.5 in a jet-stirred reactor. Detailed speciation profiles of fuel, intermediates and products were obtained using synchrotron vacuum UV photoionization mass spectrometry. A comprehensive kinetic model with 779 species and 3594 reactions was developed and validated against the new exptl. data. Model anal. indicated that the dominant reaction pathways for MHP consumption were H-abstraction reactions by radicals of OH, HO2 to produce MHP radicals under all exptl. conditions. In this low-T oxidation region, O2 addition reactions were responsible for the consumption of MHP radicals. The formation pathways of unsaturated Me esters were strongly related to the decomposition of cyclic ethers. Furthermore, the formations of CH3OOH and C2H5OOH were closely linked to the reactions of CH3O2 and C2H5O2 as well as the radicals of CH2O and HO2. This work provides detailed information relevant to low-T biodiesel oxidation chem. and guidance for the application of biodiesel in internal combustion engines. This study involved multiple reactions and reactants, such as Methyl heptanoate (cas: 106-73-0Quality Control of Methyl heptanoate).
Methyl heptanoate (cas: 106-73-0) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Quality Control of Methyl heptanoate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics