石炭を原料とする活性炭の製造 : 賦活における圧力の影響

概要

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The effect of pressure on the activated process of production of active carbon was exaimined. The activated　process of coal char was carried out by steam that was accompanied by nitrogen under the total pressure of 1atm and 140 mmHg respectively， with a steam rate of 2.35 g/hr. 　　　The maximum values of specific surface area and the maximum values of adsorptivity of methylene blue on the active carbon were similar，irrespective of pressure. The properties of the active carbon obtained under the conditions of a pressure of 140mmHg，temperatures of activated reaction about 50℃ lower than those activated reaction at 1atm under the identical reaction time, and reaction times of about one hour less than those at 1atm under the identical temperature of reaction，were similar to the properties of the active carbon that was produced under 1atm. 　　　Apparent rate constant of reaction at 140mmHg was larger than that at 1atm under the identical temperature.
北見工業大学の論文