A study of the co2-o2 coal gasification process

Akram M. Alfantazi, C. A. Pickles

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


In this work, a fixed-bed gasifier was used to study the effects of some important parameters on both the temperature and the chemical composition of the off-gas produced in a CO2-O2 coal gasification process. Also, the effect of these parameters on the gasification temperature was determined. The parameters tested included input-gas composition, coal rank, coal size and coal-bed depth. In addition, the reactivity of a sub-bituminous coal was investigated under different gasification temperatures. Gas chromatography was employed to analyse the chemical composition of the gases. The results indicated that the off-gas temperature increased with coal rank and decreased with both the CO2-O2 ratio and the coal-bed depth. Generally, the amount of H2 and CO in the off-gas decreased with both the coal rank and the CO2-O2 ratio and increased with coal-bed depth. Coal size did not have a significant effect on the gasification process.

Original languageBritish English
Pages (from-to)51-59
Number of pages9
JournalMaterials at High Temperatures
Issue number1
StatePublished - Feb 1992


  • Boudouard reaction
  • Carbon dioxide
  • Coal
  • Coal gasification
  • Fixed bed
  • Gas chromatography
  • Oxygen


Dive into the research topics of 'A study of the co2-o2 coal gasification process'. Together they form a unique fingerprint.

Cite this