The structure and reactivity of brown coal. 13. Residence time study of the liquefaction of brown coal

Peter J. Cassidy, W. Roy Jackson, Frank P. Larkins, Michael B. Louey, Ian D. Watkins

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The liquefaction behaviour of brown coal has been investigated using a reactor system that can be used to rapidly charge a coal slurry into a preheated autoclave and then sample its contents throughout the course of reaction. A comparison of the conversion activity for two brown coals of different atomic H C ratio has been performed. Differences are observed in the amount of oil liberated upon hot-charging, and in oil formed during the total reaction period. The results correlate well with a binary, guest-host structural model developed for low rank coals. A limited comparison with a bituminous coal has also been carried out.

Original languageEnglish
Pages (from-to)40-44
Number of pages5
Issue number1
Publication statusPublished - 1 Jan 1989


  • brown coal
  • liquefaction of coal
  • reactivity

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