Thermally stabilized combustion as a means of studying the devolatilization of coal

Christina Chan, Norio Arai, Noam Lior, Stuart W. Churchill

Research output: Research - peer-reviewArticle

  • 3 Citations

Abstract

Thermally stabilized combustion of premixed ethane and air in a ceramic tube results in a virtual step function in temperature, composition, and velocity at the flame front. If the mixture is fuel-rich, the burned gas consists almost wholly of CO, CO2, H2O, and N2. For a tube greater than 30 mm in diameter, the stable range of flow is in the turbulent regime both upstream and downstream from the flame front. An experimental technique exploiting this environment for study of the devolatilization of coal is described, and illustrative results are presented. As compared with other techniques using heated grids or entrainment, the conditions outside a particle are more uniform and the rate of heating is greater, but the velocity and temperature of the particle must be determined from momentum and energy balances rather than by direct measurement.

LanguageEnglish (US)
Pages681-687
Number of pages7
JournalIndustrial and Engineering Chemistry Research
Volume31
Issue number3
StatePublished - Mar 1992
Externally publishedYes

Profile

combustion
coal
temperature
particle
Coal
Carbon Monoxide
Temperature
ethane
ceramics
entrainment
energy balance
momentum
heating
air
gas
rate
Ethane
Energy balance
Momentum
Gases

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Environmental Science(all)
  • Polymers and Plastics

Cite this

Thermally stabilized combustion as a means of studying the devolatilization of coal. / Chan, Christina; Arai, Norio; Lior, Noam; Churchill, Stuart W.

In: Industrial and Engineering Chemistry Research, Vol. 31, No. 3, 03.1992, p. 681-687.

Research output: Research - peer-reviewArticle

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