Wheeler-Jonas式による活性炭層のガス吸着のモデル化とその拡張を用いた破過時間の推算

抄録

The Wheeler-Jonas equation is an effective function for understanding gaseous adsorption in a compact activated carbon bed. This report presents a summary of the derivation process described by Wheeler et al. and the modification of the equation by Yoon et al. The mathematical properties of the equation are also discussed from the viewpoints of adsorption capacity, breakthrough concentration and time for 50% breakthrough (stoichiometric time). The equation is also useful for estimating the breakthrough time of the carbon bed in gas filters for respirators, and it has been used in many previous studies of breakthrough time simulation. Particularly, the estimation model reported by Wood et al., which makes use of the Wheeler- Jonas equation, the Dubinin-Radushkevich equation and several empirical formulas for constants in the above mentioned equations, can also take into consideration the effects of temperature and relative humidity. We also summarized the components of Wood's estimation model, and investigated the points of relevance in application of the model for actual measurement.