No.1-18 イオン液体を用いた多段操作による石炭抽出物の脱硫

抄録

In a series of studies on the development of advance desulfurization process, coal soluble was prepared by heating low-grade coals at a temperature of 350°C for 1 h in 1-methylnaphthalene as a solvent according to the Miura’s process. The sulfur distribution from the raw coals to products was investigated and the chemical forms of sulfur in the raw coals and coal soluble were identified by XANES analysis. The selective removal behaviour of organic sulfur from the coal soluble during the multistep extraction using the ionic liquids was investigated.