石炭のソルボリシス液化における液化溶媒中の極性基の影響

抄録

In the solvolysis coal liquefaction, the heavy material like SRC (Solvent Refined Coal) is accumulated in the recycle solvent. In this time, we studied the effect of the polar end groups in the SRC on the solvolysis liquefaction. We synothesised the O- methylated SRC using tetrabutylammonium hydroxide and used it as a solvent on the sol-volysis liquefaction. The extraction chromatography was performed for the pyridine soluble of solvolysis liquefied product with hexane, benzene, tetrahydrofuran (THE) and pyridine as a eluete and the molecular weight distribution of each fraction was measured by the gel permeation chromatography. The following results were obtained by comparing with using the original SRC as a solvent on the solvolysis coal liquefaction.
1) The yields of the gas and the distillate oil are higher on the solvolysis liquefaction because the volatile matter in the SRC increased by the O-methylation.
2) The liquefaction ability as a solvent become higher as regards to the solubilization of coal in THF or pyridine.
3) The polymerization of the SRC on the solvolysis liquefaction is restrained by protec-ting the polar end group of the SRC.