10 Fractionation of Brown Coal by Sequential Thermal Extraction and Subsequent Sequential Solvent Extraction

DOI

Bibliographic Information

Other Title
  • 10 逐次的溶剤抽出法による褐炭のフラクショネーション(炭素材料,溶剤抽出)

Abstract

We have previously proposed a coal fractionation which utilizes sequential thermal extraction below at 350℃. In this study we applied the fractionation method to an Australian brown coal, Loy Yang (LY), to examine the validity of the method for fractionating brown coal. By the fractionation method using 1-MN, tetralin, and water as the extraction solvent, LY coal was fractionated into 5 fractions: one solvent soluble fraction at room temperature, 3 extract fractions recovered as solids, and the residue. The total extraction yields using 1-MN, tetralin, and water were 47, 57, and 56%, respectively. All the solid extracts recovered, interestingly, softened and melted below 230℃. The solid extracts obtained using tetralin and water were further separated into 4 constituents, through a sequential solvent extraction, which have different softening and melting behaviours.

Journal

Details

  • CRID
    1390282680746210688
  • NII Article ID
    110006611116
  • DOI
    10.20550/jiesekitanronbun.44.0_20
  • ISSN
    24238309
    24238295
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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