Journal article
Kinetic modeling of low-temperature oxidation of coal
Combustion and Flame, Vol.131(4), pp.452-464
2002
Abstract
A kinetic model has been developed for determining the rate of oxygen consumption and production of carbon oxides during the oxidation of coal at low temperatures (i.e. <100°C), based on current understanding of the mechanism of coal oxidation. The chemical reactions considered in the model include two parallel sequences consuming oxygen and two thermal decomposition pathways producing carbon oxides. The resulting rate expressions reflect the contributions of various reactions consuming oxygen and producing carbon oxides and predict the effects of temperature, oxidation time and [O2] in the gas phase. The general form of the rate expressions confirms that chemisorption is relatively fast, only playing an important rôle at the early stage of coal oxidation. With the formation of stable and unreactive oxygenated complexes in a coal's structure, the oxidation of coal is dominated by thermal decomposition of oxygenated complexes.
Details
- Title
- Kinetic modeling of low-temperature oxidation of coal
- Authors/Creators
- H. Wang (Author/Creator)B.Z. Dlugogorski (Author/Creator)E.M. Kennedy (Author/Creator)
- Publication Details
- Combustion and Flame, Vol.131(4), pp.452-464
- Publisher
- Elsevier Inc
- Identifiers
- 991005544591607891
- Copyright
- © 2002 by The Combustion Institute.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 7 Engineering & Materials Science
- 7.139 Energy & Fuels
- 7.139.1964 Spontaneous Combustion
- Web Of Science research areas
- Energy & Fuels
- Engineering, Chemical
- Engineering, Mechanical
- Engineering, Multidisciplinary
- Thermodynamics
- ESI research areas
- Engineering