5.加熱に伴う石炭中の常磁性種の変化

抄録

EPR characterization of paramagnetic species in coking and slightly coking coal has been carried out using high temperature in-situ measurements and microwave power saturation technique. The EPR spectra of coal samples obtained with high temperature in-situ measurements consist of at least three components, and change in the intensities of the components during heating depended on the properties of coals. The microwave power saturation results indicated that the origin of paramagnetic species in coal are different by the properties of coals.