Preparation of coal slurry with organic solvents

Yu Jen Shin, Yun Hwei Shen

研究成果: Article同行評審

47 引文 斯高帕斯(Scopus)

摘要

In this study, various organic solvents were used to prepare coal slurries and the rheological and thermal properties of coal-organic solvent slurries were examined. Solvents with molecules containing unpaired electrons (high basicity) show high extraction power and cause swelling of coal. Therefore, coal-organic solvent slurries usually showed higher viscosities compared to coal-water slurry. In addition, coal slurries prepared by alcohols and cyclohexanone demonstrated lower settling rates but a high specific sedimentation volume presumably because these solvents swelled coal particles well and led to the formation of weak gel structures in the bulk. In addition, ethanol and cyclohexanone are capable of breaking a considerable amount of hydrogen bonds in coal and subsequently opening up the structures. Thus, more surface area is available for combustion and the combustion rate of coal slurries was increased.

原文English
頁(從 - 到)389-393
頁數5
期刊Chemosphere
68
發行號2
DOIs
出版狀態Published - 2007 六月

All Science Journal Classification (ASJC) codes

  • 環境工程
  • 環境化學
  • 化學 (全部)
  • 污染
  • 健康、毒理學和誘變

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