No.39 Effects of Air Oxidation on the Properties of Upgraded Products derived from the Solvent Treatment of Low Rank Coal and Biomass as a Precursor of Carbon Fiber

Abstract

The air oxidation treatment was applied to improve the properties of the so called Soluble, a mixture of low-molecular-weight compounds obtained by the solvent treatment, prior to using a precursor of carbon fiber. The melting point of Soluble could be increased to be close enough of that of oil pitch by keeping over 85% yield. The yields of carbon fibers obtained were around 46%. The cross-linking reactions among low-molecular-weight compounds might play the important role on the improvement of Soluble properties.