Experimental and Kinetic Analysis of the Thermal Degradation of the Methylethylketone in Methane / Air Flames UMR CNRS 8522 “Physicochimie des Processus de Combustion”.

Abstract

The experimental study of the thermal degradation of methylethylketone (MEK) in flame conditions is undertaken to provide an experimental data base concerning Volatile Organic Compounds (VOCs) oxidation. The experimental set-up consists of the coupLing of microprobe sampling with gas chromatography and mass spectrometry analysis. Temperature measurements are realized by the coated thermocouple technique. The addition of MEK to a reference methane I air flame induces (I) an enhancement of the C 2 and C 3 hydrocarbon oxidation pathways which points out the main role of CH 3 and C 2Hs radicals, and (2) the formation of oxygenated intermediate compounds such aldehydes (CH 20, CH 3CHO. CH 3CH2CHO), alcohols (CH 30H, CH 3CH20H) and ketones (CH 3COCH3• CH3COCHCH2. CHjCH2COCH2CH3, CH 3COCH2CH2CH3). The peak mole fraction of these intermediate species increases with the amount of MEK added to the methane I air flame. The experimental results are discussed to point out the kinetic processes involved in the high temperature oxidation of MEK which may contribute to the development of a detailed chemical mechanism.

Bioremoval of diethylketone by the synergistic combination of microorganisms and clays: uptake, removal and kinetic studies

“…The typical treatment processes used for the elimination of VOC such as oxidation, with or without flame, thermal degradation (Gasnot et al 2000), biofiltration (Chou and Li 2010), adsorption on granular activated carbon, GAC (Buburuzan et al 2010) and air-stripping (Kungsanant et al 2008) are in general very expensive. Therefore, the application of microorganisms to remove/degrade ketones is used as a cost-effective alternative.…”

Study of combustion intermediates in fuel‐rich methyl methacrylate flame with tunable synchrotron vacuum ultraviolet photoionization mass spectrometry

“…These experimental findings show that MMA is the most important intermediates of PMMA combustion, and further study of the combustion of MMA is quite helpful in understanding the mechanism of PMMA combustion. The effects of toxic chemicals on the environment and human health have attracted attention 17, 18. Incomplete combustion produces large numbers of toxic chemicals such as aromatic hydrocarbons 19, 20.…”