An experimental investigation of furfural oxidation and the development of a comprehensive combustion model

Global Gas-Phase Oxidation Rates of Select Products from the Fast Pyrolysis of Lignocellulose

“…Typically, combustion studies detail the decomposition and oxidation of the species, determining radical and stable intermediate species through (typically) hundreds of pathways and reactions. 47 These mechanisms conclude that oxygenated radicals are responsible for the decomposition of the initial combustion species (in effect oxygen-catalyzed decomposition) starting the oxidation process. Thus, while these mechanisms involve more detail, our simplification of oxidative decomposition with subsequent oxidation is consistent with combustion studies.…”

“…The proposed reaction scheme, decomposition followed by oxidation, is a simplification of traditional oxidation pathways. Typically, combustion studies detail the decomposition and oxidation of the species, determining radical and stable intermediate species through (typically) hundreds of pathways and reactions . These mechanisms conclude that oxygenated radicals are responsible for the decomposition of the initial combustion species (in effect oxygen-catalyzed decomposition) starting the oxidation process.…”

Combustion of Salicornia bigelovii Pyrolysis Bio-oil and Surrogate Mixtures: Experimental and Kinetic Study

“…This can be understood from Figure 3b,c, wherein toluene consumption was low up to 900 K; toluene being a major component of the blended fuels decreases their reactivity. Furfural was reported to have the 25 The model slightly underpredicted the reactivity of pyrrole and toluene, but the onset of decomposition was captured correctly for all the components in PBO as well as in the blends. Pyrrole showed its highest decomposition in the temperature regime of 810−900 K and was almost consumed at 930 K. The higher equivalence ratio (ϕ = 0.50) resulted in a shift in this temperature regime to 850−920 K as observed by Pelucchi et al 24 Toluene decomposed steadily up to 900 K before being consumed around 930 K. It can be clearly seen from Figure 3c that the model captured the decomposition behavior of all the compounds in the fuel reasonably well.…”

“…The consumption of the PBO surrogate was faster as compared to the blends and significant concentrations of CO and CO 2 are produced in the temperature range of 810−900 K. Furfural and pyrrole exhibited early evolution of CO after 750 K (ϕ = 0.40) and 820 K (ϕ = 0.50). 24,25 It is interesting to note that pyrolysis of furfural resulted in the evolution of CO at high temperatures (>1000 K), and no CO 2 was observed. 44 As the temperature increased, the mole fraction of CO increased to ∼3 × 10 −3 at 900 K before decreasing, as it is converted to CO 2 at these temperatures.…”

“…A detailed chemical kinetic mechanism was developed for the oxidation of toluene/acetic acid/ethanol blends. Recently, combustion chemistry and kinetic models have been developed for biomass-derived compounds such as pyrrole, 24 furfural, 25 and benzaldehyde. 26 These mechanisms paved way for the development of kinetic mechanism in this study.…”