抄録
A furnace for the carbonization under a flow of super-heated steam was constructed. For the carbonization in this furnace, the following factors, temperature of super-heated steam, supplying rate of the precursor and transferring rate of carbonizing materials in carbonization furnace, were possible to be changed. Cypress charcoals prepared in this carbonization furnace were compared with those prepared in Ar gas flow. BET surface area of the charcoal increased above 800°C under superheated steam and reaches about 900 m2/g, which was much higher than that obtained in Ar gas flow. The present results on the carbonization of cypress revealed that carbonization and activation could proceed in one heating process by using super-heated steam.
