ハイパーコール製造における有機溶媒抽出条件の検討  [in Japanese] Fundamental Study on Organic Solvent Extraction Condition for Hyper Coal (ashless coal) Production  [in Japanese]

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Author(s)

    • 吉田 貴紘 YOSHIDA Takahiro
    • 産業技術総合研究所エネルギー利用研究部門 新燃科開発研究グループ Advanced Fuel Research Group, Institute for Energy Utilization, National Institute of Advanced lndustrial Science and Technology (AIST)
    • 鷹觜 利公 TAKANOHASHI Toshimasa
    • 産業技術総合研究所エネルギー利用研究部門 新燃科開発研究グループ Advanced Fuel Research Group, Institute for Energy Utilization, National Institute of Advanced lndustrial Science and Technology (AIST)
    • 坂西 欣也 [他] SAKANISHI Kinya
    • 産業技術総合研究所エネルギー利用研究部門 新燃科開発研究グループ Advanced Fuel Research Group, Institute for Energy Utilization, National Institute of Advanced lndustrial Science and Technology (AIST)
    • 斎藤 郁夫 SAITO Ikuo
    • 産業技術総合研究所エネルギー利用研究部門 新燃科開発研究グループ Advanced Fuel Research Group, Institute for Energy Utilization, National Institute of Advanced lndustrial Science and Technology (AIST)

Abstract

Thermal extractions with several polar and non-polar solvents were carried out in order to produce “HyperCoal” (ashless coal) in a high yield. Effects of extraction time and temperature on the extraction yield (HyperCoal yield), and suitable parameters to select coals for HyperCoal production were investigated.<BR>We previously reported (Yoshida et al., 2001a) that softening temperature of raw coals is an excellent index for coal giving high extraction yields with Light Cycle Oil (LCO), which is a non-polar and cost-effective solvent. However, in relation to the coal softening, the maximum fluidity did not simply correspond to the extraction yield at 360°C, suggesting that such a high extraction yield can be strongly related to the structural changes occurred at its softening temperature, where thermal relaxation of non-covalent interactions coal actively occurs.<BR>Thermal extraction yields with non-polar solvent such as LCO were high for coals around 76 ∼ 81wt% (daf) carbon contents, and the ash content in LCO HyperCoal was 0.03%. In the case of using polar solvent, the extraction yield increased, on the other hand, the amounts of the remained solvent and mineral matters in HyperCoal became larger, compared to the case of non-polar solvent.

Journal

  • Shigen-to-Sozai

    Shigen-to-Sozai 118(2), 136-140, 2002-02-25

    The Mining and Materials Processing Institute of Japan

References:  18

Cited by:  1

Codes

  • NII Article ID (NAID)
    10008012363
  • NII NACSIS-CAT ID (NCID)
    AN10062646
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    09161740
  • NDL Article ID
    6083701
  • NDL Source Classification
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL Call No.
    Z17-315
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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