Abstract
Organic heavy components from five kinds of coal liquid vacuum residues (CLVR) from the plant (0.1t/d) of NEDOL process were studied to obtain a basic information for their utilization to carbon materials. The textures of cokes from extracts of CLVR and crystallographic parameters of graphitized cokes were examined by means of a polarized-light microscope and X-ray diffractometer.Cokes from asphaltenes showed flow anisotropic textures and ones from preas-phaltenes showed mosaic textures, which increased in the anisotropic unit size of the texture with increasing rank of the raw coal. Graphitizability of asphaltenes was bet-ter than that of preasphaltenes. Graphitizability of preasphaltenes became better with higher rank of the raw coals.
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