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A thermogravimetic kinetic study of uncatalyzed diesel soot oxidation

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Abstract

Isothermal and non-isothermal thermogravimetric experiments (TG) with real and synthetic (Printex U) soot were performed at different O2 concentrations (5–22%O2/N2), sample masses (0.5–10 mg), heating (5–20 °C min−1) and flow rates (80–100 mL min−1). The significance of the experimental and calculation uncertainties (i.e. experimental parameter dependencies, calculation method and mass transfer limitations), which are related to TG for the extraction of chemical kinetics, was explored. Finally, an intrinsic kinetic equation for soot oxidation is proposed.

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Acknowledgements

We would like to acknowledge the valuable contribution of P. Pistikopoulos and A. Tzilvelis, members of the laboratory staff, involved in the experimental study. We also acknowledge the financial support of the Greek State Scholarship Foundation (IKY).

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Authors and Affiliations

  1. Laboratory of Applied Thermodynamics, Mechanical Engineering Department, Aristotle University Thessaloniki, P.O. Box 458, 541 24, Thessaloniki, Greece

    Maria Kalogirou & Zissis Samaras

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  1. Maria Kalogirou
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  2. Zissis Samaras
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Correspondence to Zissis Samaras.

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Kalogirou, M., Samaras, Z. A thermogravimetic kinetic study of uncatalyzed diesel soot oxidation. J Therm Anal Calorim 98, 215–224 (2009). https://doi.org/10.1007/s10973-009-0110-8

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  • DOI: https://doi.org/10.1007/s10973-009-0110-8

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