Binder Effect of Alcohol-Alkali Treated Coals

概要

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Taiheiyo coal was treated with alcohol-alkali for 1hr at 300-430 t and the products were mixed with Taiheiyo coal in the ratio of 10, 20 and 30%. This mixtures were briquetted under the pressure of 5.3t/cm2 and then the briquettes were carbonized at 950°C The binder ability of the reaction products was tested by measuring the compressive strensth of these carbonized briquettes. The compressive strength increased with the content of binder (reaction product) in the briquette, which means that these reaction products have really the binder ability. The reaction product treated at 370°C showed the highest compressive strength. The products treated at lower temperature than 370°C have the higher softening point and those treated at higher temperature have the lower carbonization yield, which cause the lower compressive strength. It is expected to have better results by using more adaptable coal as the starting coal of reaction and by selecting more suitable coal for base coal of briquetting.
一般社団法人日本エネルギー学会の論文