COAL COMBUSTION STUDIES USING THERMOGRAVIMETRIC ANALYSIS

Authors

  • Nor Fadzilah Othman TNB Research Sdn Bhd No.1, Lorong Air Hitam Kawasan Institusi Penyelidikan 43000, Kajang Selangor, Darul Ehsan, Malaysia
  • Abdul Halim Shamsuddin Mechanical Department Faculty of Engineering, UKM, Bangi Selangor, Darul Ehsan, Malaysia

Keywords:

Arrhenius equation, coal, thermogravimetry

Abstract

Coal burning profiles can be determined using thermogravimetric analysis. Characteristic
temperatures were determined from the burning prof iles. Burning profiles could provide a
valuable, rapid laboratory method of ranking coals in terms oftheir burnout performance. In this
study, non-isothermal thermogravimetry and derivative thermogravimetry (TG/DTG) experiment were carried out for three types of coal samples, which are Blair Athol (Australian Coal), Merit Pita (Malaysian Coal) and Tanito Harum (Indonesian Coal). Thermogravimetry experiments were performed from ambient to 100(f'C in the synthetic air atmosphere. Differential thermogravimetric data were analysed using an Arrhenius type reaction model assuming a firstorder reaction . Kinetic parameters ofthe samples were determined and the results are discussed.

References

Kok, M.V., et al., 1997, "Effect of Particle Size on the Thermal and Combustion Properties of Coal", Thermochimica Acta, Vol 302, p 125.

Artos, V. and Scaroni, AW., 1993, "T.G.A and Drop-tube Reactor Studies of the Combustion of Coal Blends", Fuel, Vol. 72, No. 7, p 927.

Cumming, J.W., 1984, "Reactivity Assessment of Coals via a Weighted Mean Activation Energy", Fuel. Vol. 63, p 1436.

Smith, S.E., et al., 1981, "DTGA Combustion of Coals in the Exxon Coal Library", Fuel, Vol 60, p 458.

Galwey, AK. and Brown, M.E., 2002, "Application of the Arrhenius Equation to Solid State Kinetics: can this be Justified", Thermochimica Acta, Vol. 386, p 91.

Conesa, J.A., et al., 2001, "Comments on the Validity and Utility of the Different Methods for Kinetic Analysis of Thermogravimetric Data", Journal of Analytical and Applied Pyrolysis, Vol 58-59, p 617.

Hart, S., Ward, J. and Biffin, M., 2001, "Development of a Method to Assess the Reactivity of Multi-component Solid Fuel Briquettes", IFRF Combustion Journal, p 1.

Kneller, W.A., 1986, "Physicochemical Characterization of Coal and Coal Reactivity: A Review", Thermochimica Acta, Vol 108, p 357-388.

Morgan, P.A., Robertson, S.D. and Unsworth, J.F., 1986, "Combustion Studies by Thermogravimetric Analysis. 1. Coal Oxidation", Fuel, Vol. 65, p 1546.

Downloads

Published

2018-05-02

How to Cite

Othman, N. F., & Shamsuddin, A. H. (2018). COAL COMBUSTION STUDIES USING THERMOGRAVIMETRIC ANALYSIS. Jurnal Mekanikal, 15(2). Retrieved from https://jurnalmekanikal.utm.my/index.php/jurnalmekanikal/article/view/236

Issue

Section

Mechanical

Similar Articles

<< < 1 2 3 

You may also start an advanced similarity search for this article.