Laminar flame speeds, counterflow ignition, and kinetic modeling of the butene isomers

Peng Zhao, Wenhao Yuan, Hongyan Sun, Yuyang Li, Andrew P. Kelley, Xiaolin Zheng, Chung King Law

Research output: Contribution to journalArticle

39 Scopus citations

Abstract

Laminar flame speeds and ignition temperatures of nonpremixed counterflow were measured experimentally for the butene isomers at normal and elevated pressures. Results show that the flame speed increases in the order of isobutene, trans-2-butene, and 1-butene. Furthermore, isobutene has the highest ignition temperature, while those of trans-2-butene and cis-2-butene are quite similar to each other and are slightly higher than that of 1-butene. These results indicate that the reactivities of the butene isomers increase in the order of isobutene, 2-butene, and 1-butene. Furthermore, the critical reaction paths for butene isomer oxidation during ignition were analyzed by sensitivity analysis and a new kinetic model was developed with updated rate coefficients from ab initio calculation and kinetic theories. Simulations with the present kinetic model agree well with the measured laminar flame speeds, counterflow ignition temperatures as well as recent laminar flame speciation and ignition delay times for all butene isomers.

Original languageEnglish (US)
Pages (from-to)309-316
Number of pages8
JournalProceedings of the Combustion Institute
Volume35
Issue number1
DOIs
StatePublished - 2015

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Mechanical Engineering
  • Physical and Theoretical Chemistry

Keywords

  • Butene
  • Counterflow ignition
  • Isomeric effects
  • Kinetic model
  • Laminar flame speed

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