9.褐炭液化反応の進行に及ぼすギ酸イオンの影響

抄録

Formate ion can be formed as a reactive intermediate under alkali conditions in coal liquefaction in carbon monoxide-water systems. Yallourn brown coal was liquefied with sodium formate as a hydrogen source in a batch autoclave. The addition of sodium formate resulted in a decrease in the conversion (the yield of THF-soluble matter) with tetralin as a solvent. On the other hand, with water or ethanol replacing tetralin the conversion was enhanced by the use of sodium formate. LDI-mass spectrometry of the THF-soluble matters revealed that formate ion decomposed coal into lower molecular compounds.