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2004 Fiscal Year Final Research Report Summary

Process to separate useful compounds, such as quinoline, indole, derived from coal using solvent extraction or liquid membrane method

Research Project

Project/Area Number 13650826
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 反応・分離工学
Research InstitutionTokyo Institute of Technology

Principal Investigator

EGASHIRA Ryuichi  Tokyo Institute of Technology, Graduate School of Science and Engineering, Associate Professor, 大学院・理工学研究科, 助教授 (90213529)

Project Period (FY) 2001 – 2004
Keywordssolvent extraction / liquid membrane / coal / coal tar distillate / nitrogen heterocyclic compounds / aromatic hydrocarbons / aqueous methanol solution / saponin solution
Research Abstract

Solvent extraction and liquid membrane methods were applied to the raw separation of adsorption oil and tar light oil as coal tar distillates.
In the study of the solvent extraction method, experimental measurement of liquid-liquid equilibrium relationship between feed mixture (adsorption oil/tar light oil) and solvent (aqueous methanol solution), separation between extractant and solvent components in the extract after extraction, calculation of extraction with countercurrent multistage contact based on the obtained experimental results, and so on, were carried out. The results showed that nitrogen heterocyclic compounds could be extracted preferentially to the other compounds contained in the feed mixture. Extractant rich in nitrogen compounds could be separated by both extraction with secondary solvent and distillation from the extract after extraction to recover the solvent components, these feeds could be separated into the products wife practical operation conditions, and so forth.
In the study of the liquid membrane method, experimental measurement of liquid-liquid equilibria between feed and membrane liquid (water) and between solvent (several kinds of hydrocarbon) and membrane liquid, batch permeation through supported and emulsion liquid membrane were conducted. Since the distribution coefficients of nitrogen compounds in feeds were strongly dependent on the kind of hydrocarbon solvent, it was predicted that the separation performance for nitrogen compounds could be improved by the use of the solvent in which the distribution coefficient of nitrogen compounds were low. This prediction was confirmed by the permeation experiments with supported and emulsion liquid membrane.

  • Research Products

    (3 results)

All 2005 2001

All Journal Article (2 results) Book (1 results)

  • [Journal Article] Separation of Coal Tar Fractions by Solvent Extraction -Extractants/Solvent Separation by Secondary Extraction-2005

    • Author(s)
      Salim, C., J.Saito, R.Egashira
    • Journal Title

      Journal of The Japan Petroleum Institute 48

      Pages: 60-66

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Separation of Coal Tar Fractions by Solvent Extraction-Extractants/Solvent Separation by Secondary Extraction-2005

    • Author(s)
      Salim, C., J.Saito, R.Egashira
    • Journal Title

      Journal of The Japan Petroleum Institute 48-1

      Pages: 60-66

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] 化学工学シンポジウムシリーズ76高機能界面・分子集合体の基礎構築と応用分野の新展開2001

    • Author(s)
      機能性界面・分子集合体(特別研究会編)(化学工学会)
    • Total Pages
      244
    • Publisher
      社団法人化学工学会
    • Description
      「研究成果報告書概要(和文)」より

URL: 

Published: 2006-07-11  

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