Investigation of peat pyrolysis under inert gas atmosphere

Research output: Contribution to journalArticle

Abstract

Seven Swedish peats of different degrees of humification were pyrolysed in a thermobalance at pressures in the range 1.0-4.0 MPa. The formation kinetics of the pyrolysis products were determined using the non-isothermal evaluation method. The sample size used was 1.0 g and the heating rate was 10 K min-1. Gas production was analysed by gas chromatography and the components were CO2, C2H4, C2H6, CH4 and CO. The tar and char production were measured after the experiment by weighing. The experiments showed that gas production was slightly increased, at the expense of tar production, with increasing pressure, indicating some thermal cracking. The kinetic parameters, i.e. pre-exponential factor, k0, and activation energy, E(a), were unaffected by the pressure.

Details

Authors
  • LE Holst
  • Lars A H Andersson
  • Ingemar Bjerle
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Chemical Engineering

Keywords

  • PEAT, PYROLYSIS, THERMOGRAVIMETRIC ANALYSIS
Original languageEnglish
Pages (from-to)1017-1022
JournalFuel
Volume70
Issue number9
Publication statusPublished - 1991
Publication categoryResearch
Peer-reviewedYes