3. Characterization of Coal Carbon Structure by Some Analytical Methods

Abstract

The carbon structure of coal was measured by ^<13>C-NMR, XRD, LRM and XPS technique for CCUJ standard coals. A parameter to evaluate the carbon structure was developed for each analysis method, and their results were compared. It is found that LRM parameter and XRD parameter is available especially, because relation between both parameters and fa from NMR showed a good agreement. The 20 CCUJ standard coals were characterized by these parameters.