Extraction kinetics of coals at subcritical and supercritical conditions


Pehlivan D., Gurkahraman M., Pamuk V.

FUEL SCIENCE & TECHNOLOGY INTERNATIONAL, cilt.14, ss.1097-1110, 1996 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 14 Konu: 8
  • Basım Tarihi: 1996
  • Doi Numarası: 10.1080/08843759608947630
  • Dergi Adı: FUEL SCIENCE & TECHNOLOGY INTERNATIONAL
  • Sayfa Sayıları: ss.1097-1110

Özet

The extraction kinetics of two lignites and one bituminous coal with benzene, toluene and pyridine were studied at both sub and supercritical conditions in a batch reactor equipped with a coal basket. The time-extract yield data of lignites at supercritical conditions could'nt be treated due to severe thermal decomposition and heating-up effects. The data for Zonguldak coal and those for subcritical extraction of Cizre lignite could be fitted into a first order rate equation with the rate constants changing 0.02-0.05 min(-1) range.