Journal of thermal analysis

, Volume 47, Issue 3, pp 821–831 | Cite as

Influence of the mineral matter content on the rate of heat release from Turkish lignites

  • C. Şentorun
  • B. Dürüs
  • S. Küçükbayrak
Article

Abstract

In this study, combustion curves of twenty-five original and demineralized Turkish lignite samples were obtained through use of a differential thermal analyser. The lignite samples were demineralized by treatment with hydrochloric and hydrofluoric acids. Samples of 20 mg were heated up to 1074 K at a constant rate of 10 K min−1 in a 40 cm3 min−1 flow of dry air. The rates of heat release from the original and demineralized samples were compared and are discussed.

Keywords

DTA lignite mineral matter 

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Copyright information

© Akadémiai Kiadó 1996

Authors and Affiliations

  • C. Şentorun
    • 1
  • B. Dürüs
    • 1
  • S. Küçükbayrak
    • 1
  1. 1.Chemical & Metallurgical Engineering Faculty, Department of Chemical EngineeringIstanbul Technical UniversityMaslak-IstanbulTurkey

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