A reduced mechanism for primary reactions of coal volatiles in a plug flow reactor

Saiful Md Alam, Agung Tri Wijayanta, Koichi Nakaso, Jun Fukai, Koyo Norinaga, Jun ichiro Hayashi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In the present paper, the authors study the primary reactions of coal volatiles and a detailed mechanism has been made for three different environments: thermal decomposition (pyrolysis), partial oxidation (O2) and O2/CO2 gasification in a plug flow reactor to analyze the combustion component. The computed results have similar trend for three different environments with the experimental data. A systematically reduced mechanism for O2/CO2 gasification has also been derived by examination of Rate of Production (ROP) analysis from the detailed mechanism (255 species and 1095 reactions). The reduced mechanism shows similar result and has been validated by comparing the calculated concentrations of H2, CH4, H2O, CO, CO2 and polycyclic aromatic hydrocarbon (PAH) with those of the detailed mechanism in a wide range of operating conditions. The authors also predicted the concentration profiles of H2, CO, CO2 and PAH at high temperature and high pressure.

Original languageEnglish
Pages (from-to)841-853
Number of pages13
JournalCombustion Theory and Modelling
Volume14
Issue number6
DOIs
Publication statusPublished - Dec 1 2010
Externally publishedYes

Keywords

  • Coal gasification
  • Coal volatiles
  • Combustion
  • Polycyclic aromatic hydrocarbon
  • Reduced mechanism

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Modelling and Simulation
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Physics and Astronomy(all)

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