Dependence of pyrolysis rate of coal on temperature

Konstantin V. Slyusarskiy, Madijar K. Bejsekov, Jana V. Marysheva, Yuriy Ja Rakov

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Pyrolysis process of coal has been researched to define kinetic constants which can be used for design and optimization of different processes of fuel transformation. The article considers anthracite powders and bituminous coal of Krasnogorsky mine with the use of nonisothermal thermogravimetric analysis with mass spectrometry. Spectroscanning microscopy and laser diffraction for definition of sizes and forms of particles distribution has been done. Other parameters - carbon content, ash and volatiles, density and moisture have been defined by standard methods. Energy of activation and pre-exponent with the use of models of Freedman, Starink and distributed activation energy model (DAEM), and also relative deviation of design data from experimental ones have been designed. The results of the analysis have shown the important influence of volatiles content and coal transformation degree on maximum reaction rate. Energy activation values received with the help of DAEM model are higher than with Freedman and Starink models. Process of pyrolysis of bituminous coal has a big rate in comparison with anthracite, and is better described by the abovementioned models.

Original languageEnglish
Article number01053
JournalMATEC Web of Conferences
Volume37
DOIs
Publication statusPublished - 22 Dec 2015
EventSmart Grids 2015 - Tomsk, Russian Federation
Duration: 28 Sep 20152 Oct 2015

ASJC Scopus subject areas

  • Chemistry(all)
  • Engineering(all)
  • Materials Science(all)

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