Chemical Structures of Fuel-Rich,Premixed,Laminar Flames of CH 2 Cl 2 and CH 4

Abstract

ABSTRACT:

Chemical structures of atmospheric-pressure, fuel-rich (sooting), premixed, laminar flames of CH₂Cl₂ and CH₄ have been investigated using a flat-flame burner as a function of equivalence ratio and fuel ratio (CH₂Cl₂/CH₄). Species mole fraction profiles were determined by hot-water-cooled micro-probe coupled to an on-line gas Chromatograph/ mass spectrometer. In addition to those of the reactants, the mole fraction profiles for CO, CO₂, HCl, H₂O, CH₃Cl, CHCl₃, C₂H₂, C₂H₄, C₂H₆, 1,2-C₂H₂Cl₂, 1,1-C₂H₂Cl₂, C₂HCl₃, C₂H₃Cl, 1,1,2,2-C₂H₂Cl₄, C₄H₄, C₄H₂, C₆H₆ and C_gH₅Cl were determined. The roles of these species, in view of the current ideas of the mechanism of CH₂Cl₂ combustion are discussed.