In order to know the effect of the heterogeneity of wood on the multi-phase graphitization of charcoal, the residual products, which were obtained from a commercial pulp and an Araskan Cypress at various stages of solvent extraction, were heat-treated up to 3000°C.
X-ray diffraction profiles of the residual products differed remarkably from each other.However, the variations of (002) diffraction profile of the products with heat treatment temperature was hardly observed and co-relation between the crystallinity of the materials before heating and characteristics of (002) profiles of char was not established.
The present results show that the multi-phase graphitization of charcoal was not caused from explaned by the constitutional heterogeneity of wood.