On the explosion limits of H2/CO/O2 mixtures

Jie Liu, Wenkai Liang, Chung K. Law

Research output: Contribution to conferencePaper

Abstract

The explosion limits of syngas for various H2/CO/O2 mixtures were analyzed computationally and theoretically. It is shown that, with the addition of even a minute quantity of H2, the explosion limits of CO are changed from being monotonic in the pressure-temperature domain to a highly-nonmonotonic, Z-shape curve. With further increase of the H2 concentration, the explosion limits of the syngas approach those of pure H2. A sensitivity analysis of the important chemical reactions which influence the syngas explosion limits was performed for various temperature, pressure and mixture concentrations, and it is shown that the explosion limit can be reproduced well with a reduced mechanism of 13 elementary steps and 13 species. An eigenvalue analysis of the reduced mechanism leads to an analytic solution for the explosion limits including the critical condition for the transition from the monotonic to the Z-curve behavior.

Original languageEnglish (US)
StatePublished - Jan 1 2016
Event2016 Spring Technical Meeting of the Eastern States Section of the Combustion Institute, ESSCI 2016 - Princeton, United States
Duration: Mar 13 2016Mar 16 2016

Other

Other2016 Spring Technical Meeting of the Eastern States Section of the Combustion Institute, ESSCI 2016
CountryUnited States
CityPrinceton
Period3/13/163/16/16

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'On the explosion limits of H<sub>2</sub>/CO/O<sub>2</sub> mixtures'. Together they form a unique fingerprint.

  • Cite this

    Liu, J., Liang, W., & Law, C. K. (2016). On the explosion limits of H2/CO/O2 mixtures. Paper presented at 2016 Spring Technical Meeting of the Eastern States Section of the Combustion Institute, ESSCI 2016, Princeton, United States.