Combustion of methane and propane in an incipiently fluidized bed

R. P. Hesketh, J. F. Davidson

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62 Scopus citations

Abstract

Temperature and gas concentration experiments have been conducted to determine the temperature at which volatiles begin to combust within the particulate phase of a bubbling fluidized bed. The particulate phase of such a bed was approximated by operating a fluidized bed at incipient fluidization. Gas concentration measurements were made from products of both premixed propane-air and premixed methane-air mixtures. The critical temperatures above which combustion products were observed in the particulate phase were 835°C and 915°C for propane and methane, respectively; below the critical temperature for each fuel-air mixture, combustion was negligible. The propane critical combustion temperature was confirmed from the results of unsteady-state temperature and ignition delay time measurements. These experiments demonstrate that the particulate phase can inhibit the oxidation rate of hydrocarbons.

Original languageEnglish (US)
Pages (from-to)449-467
Number of pages19
JournalCombustion and Flame
Volume85
Issue number3-4
DOIs
StatePublished - Jun 1991

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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