Effects of m-xylene on aromatics and soot in laminar, N 2-diluted ethylene co-flow diffusion flames from 1 to 5atm

A. G. Mouis, A. Menon, V. Katta, T. A. Litzinger, M. Linevsky, R. J. Santoro, S. P. Zeppieri, M. B. Colket, W. M. Roquemore

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Experimental data and model results are presented for the effects of m-xylene on aromatic species and soot in a nitrogen-diluted ethylene flame over a range of pressures from 1 to 5. atm. The experimental approach was designed to investigate the effects of m-xylene as a perturbation to a base flame by keeping the amount of carbon added as m-xylene to 5% or less. The experimental results indicate that the maximum soot levels and those of small (1 or 2 rings) and large (3 or more ring) aromatic species are roughly first order with respect to the amount of m-xylene added. A chemical kinetic model was formulated, integrated into a 2-D modeling code, and used to simulate the effects of m-xylene addition and pressure on aromatic species and soot. The modeling results capture the general trends in concentration of soot and small aromatics as m-xylene concentration and pressure are varied. However, the model under-predicts the effect of m-xylene concentration and pressure on soot compared to the experimental results.

Original languageEnglish (US)
Pages (from-to)3168-3178
Number of pages11
JournalCombustion and Flame
Issue number10
StatePublished - Oct 1 2012

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Physics and Astronomy(all)

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