Kinetic analysis of DSC and thermogravimetric data on combustion of lignite


Kok M., Okandan E.

JOURNAL OF THERMAL ANALYSIS, vol.46, no.6, pp.1657-1669, 1996 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 46 Issue: 6
  • Publication Date: 1996
  • Doi Number: 10.1007/bf01980771
  • Journal Name: JOURNAL OF THERMAL ANALYSIS
  • Journal Indexes: Science Citation Index Expanded, Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Index Islamicus, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.1657-1669
  • Keywords: activation energy, combustion, differential scanning calorimetry, kinetics, lignite, oxidation, thermogravimetric analysis, COMPUTER-PROGRAMS, THERMAL-ANALYSIS, MIXTURES

Abstract

Thermal analysis increasingly being used to obtain kinetic data relating to sample decomposition. This work involves a comparative study of several methods used to analyse DSC and TG/DTG data obtained on the oxidation of Beypazari lignite. A general computer program was developed and the methods are compared with regard to their accuracy and the ease of interpretation of the kinetics of thermal decomposition. For this study, the ratio method was regarded as the preferred method, because it permits the estimation of reaction order, activation energy and Arrhenius constant simultaneously from a single experiment.