Reaction Kinetics, Mechanisms and Catalysis

, Volume 106, Issue 2, pp 369–377 | Cite as

Thermogravimetric analysis of the catalytic effect of metallic compounds on the combustion behaviors of coals

  • Kang Yin
  • Yu-Ming Zhou
  • Qing-Zhao Yao
  • Cheng Fang
  • Ze-Wu Zhang


Effects of KNO3, CeO2, Fe2O3, their mixture and their thermally treated mixture on the combustion reactivity of two coals, bituminous coal (BC) and high ash coal (HAC), were investigated by thermogravimetric analysis. The ignition performance, burnout performance and exothermic behavior were used to evaluate the catalytic effect. Moreover, the kinetic parameters were determined using the Coats–Redfern method. The results indicated that the activity sequence of the catalysts on BC relative to the ignition performance can be described as follows: the thermally treated mixture > the mixture > KNO3 > Fe2O3 > CeO2, and the activity sequence relative to the burnout performance is the same. The activity sequence of the catalysts on HAC relative to the ignition performance can be described as follows: the thermally treated mixture > the mixture > Fe2O> CeO2 > KNO3, and the activity sequence relative to the burnout performance is the same. The exothermic heats of catalyst-incorporating samples increased and the activation energies of the samples decreased.


Bituminous coal (BC) High ash coal (HAC) Catalytic combustion Ignition Burnout TGA 



The authors are grateful to Production and Research Prospective Joint Research Project (BY2009153) and the National Nature Science Foundation of China (50873026) for financial supports.


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2012

Authors and Affiliations

  • Kang Yin
    • 1
  • Yu-Ming Zhou
    • 1
  • Qing-Zhao Yao
    • 1
  • Cheng Fang
    • 1
  • Ze-Wu Zhang
    • 1
  1. 1.School of Chemistry and Chemical EngineeringSoutheast UniversityNanjingPeople’s Republic of China

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