29.ラマン分光を利用した石炭のコークス化挙動の検討

抄録

The coke forming process during the carbonization of coal is poorly understood because of the difficulty of the analysis of the solid amorphous carbons, although it is recognized that the carbonization process affects significantly the strength of cokes produced. Raman spectroscopy has been well known to be powerful to characterize graphitic carbons. In this study, it was utilized to characterize amorphous carbons prepared from the carbonization of coal. The absolute intensity of the spectrum was found to decrease with the increase of the final temperature. The decrease was well correlated with the yield of H_2, indicating that the Raman spectrum reflects the degree of carbonization of coal.