SUPERCRITICAL-DIOXANE EXTRACTION OF TUNCBILEK LIGNITE


DEMIRCI B., OLCAY A.

FUEL SCIENCE & TECHNOLOGY INTERNATIONAL, vol.13, no.6, pp.775-791, 1995 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 13 Issue: 6
  • Publication Date: 1995
  • Doi Number: 10.1080/08843759508947705
  • Title of Journal : FUEL SCIENCE & TECHNOLOGY INTERNATIONAL
  • Page Numbers: pp.775-791

Abstract

After preextraction with ethanol-benzene (1:2) in a Soxhlet apparatus Tuncbilek lignite was extracted with dioxane at 330 degrees C in an autoclave at different pressures and for different exposure times. The extracts were fractionated and many of the compounds they contain were identified by gas chromatography/mass spectrometry. The formation and yields of these compounds are discussed in terms of the structure of the parent fuel and the mechanism of extraction.