Activated Carbon Fibers For The Removal of Chemical Warfare Simulants

概要

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Removal of chemical warfare agents such as dimethylmethylphosphonate (DMMP), carbon tetrachloride, and chloropicrin vapor were carried out on activated carbon fibers, and compare the removal efficiency with those of metal-impregnated activated carbon and activated carbon deposited cloths at various conditions. The vapors were passed through the carbon adsorbent packed bed at constant flow rate. The vapor concentrations in influent and effluent air were measured by gas chromatography. The adsorption amount of DMMP on activated carbon fiber was 0.585 g/g-ACF, which was 7.4 times larger than that of metal-impregnated activated carbon at the breakthrough point (0.004 mg/l). DMMP was physically adsorbed on ACF. The ACF saturated with DMMP was completely regenerated at 121°C, 1.2 atm, 30 min. The adsorption amounts of carbon tetrachloride and chloropicrin on ACFs were 7.7 and 18 times larger than that of metal-impregnated activated carbon at the breakthrough point.
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