Investigation of CO2 addition on the premixed C2H4 flame at low pressure

Zhan Jun Cheng, Li Dong Zhang, Zhan Dong Wang, Wen Hao Yuan, Yi Zun Wang, Yu Yang Li, Fei Qi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Four rich premixed C2H4/O2 flames diluted with Ar and CO2 (total 30% in volume) at low pressure (4.0 kPa), with respective CO2 proportions of 0%, 10%, 20% and 29%, were studied using synchrotron vacuum ultraviolet photoionization mass spectrometry. A kinetic model with 176 species and 642 reactions was developed. Based on the rate of production analysis and the sensitivity analysis, the reaction CO + OH = CO2+ H plays a significant role in the reduction of polycyclic aromatic hydrocarbons (PAHs) formation in the flames with CO2 addition. By increasing CO2 proportion, the formation of 1CH2, 3CH2, and CH is inhibited and the concentrations of C2H2,C3H3 and C4H4, which are soot precursors, are reduced as well as PAHs.

Original languageEnglish (US)
Pages (from-to)1787-1791
Number of pages5
JournalKung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics
Issue number9
StatePublished - 2013
Externally publishedYes


  • CO addition
  • Kinetic modelling
  • Premixed ethylene flame
  • Thermal and chemical effects

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering


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