A comprehensive experimental study of low-pressure premixed C3-oxygenated hydrocarbon flames with tunable synchrotron photoionization

An experimental study on the formation of polycyclic aromatic hydrocarbons in laminar coflow non-premixed methane/air flames doped with four isomeric butanols

“…The molecules are ionized by synchrotron VUV light which is crossed with molecular beam in the ionization region. The ions are then detected by the RTOF-MS, which has been described in previous report of low-pressure premixed flames [29].…”

Effect of the pressure on the catalytic oxidation of volatile organic compounds over Ag/Al2O3 catalyst

“…In the low-pressure flames of hydrocarbon oxidation, Taatjes et al [13] found that enols are the common intermediates in hydrocarbon oxidation. Qi et al [14,15] found that enols with two to four carbon atoms were in propanols and butanols fueled flames. Also, it is very interesting that enols can also be formed from plasma discharges of alcohols [16].…”

“…It is well known that there is less collision between molecules under low pressure, so that one could expect to obtain rarer partial oxidation intermediates of VOC catalytic oxidation under such reaction conditions. More recently, enols with two to four carbon atoms have been found in propanols and butanols fueled low-pressure flames [14,15]. It is very interesting to note that enols can be formed from low-pressure plasma discharges of alcohols as well [16].…”

Experimental and kinetic modeling study of 1-hexanol combustion in an opposed-flow diffusion flame

“…The predicted peak concentration of 3-buten-1-ol is 278 ppm. The isomerization of enols to ketos (i.e., ketones or aldehhydes) has been discussed in previous studies that have identified enols as important species in the combustion of hydrocarbons and oxygenates [83,84,85,86]. In chemistry, enols and ketos are tautomers of each other, whereby a keto and an enol are in chemical equilibrium with one another via a shift in a proton and bonding electrons.…”