Production and Utilization of Charcoal-Its Present Situations and Future Aspects

概要

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An yearly output of charcoal is about 1, 300, 000 tons in our country and Japan is the richest in charcoal in the world.<BR>Japanese made charcoal is superior in quality and this superiority is due to the long period of histories and traditions in a method of charcoal making.<BR>There are three kinds of charcoal making methods in Japan, Heaping method that is an ancient primitive charcoal making method in Japan, Oven carbonization which is believed come from China and modernistic charcoal making method. But the greater part of charcoal is made by oven heating method which produces white and black charcoal.Japanese charcoal is connected with a tea ceremony, Cha-no-yu and an ext-ernal appearance of charcoal is important in estimation of quality.<BR>A charcoal was used for home fuel mostly but is increasing for business and industrial use now.<BR>Japanese made charcoal is expensive and unfit for industry for the reason of the han-dicrafting method, and an expensiveness of raw wood meterials and labor shortage is affecting to the possibility of conventional charcoal making process gradually.Then mo-dernistic charcoal making method with much amount of waste in wood industry appeared.A charcoal has pualities of high chemical accesibility and high porosity, there fore an industrial application with these characters is much expected to come in future.
一般社団法人日本エネルギー学会の論文