Abstract
The reactor length optimization of monolithic selective adsorbent units for dioxin adsorption was studied by experimental determinations, using o-dichlorobenzene. Two monolith geometries were used, with cell hydraulic diameters of 2.6 and 1.3 mm, and geometric surface areas of 1,040 and 1,800 m2m-3, respectively. A simple model for the estimation of the minimum adsorber bed length was proposed to achieve total adsorption using the entire monolith surface. In this model, the radial diffusion of the chlorinated molecules in the gas bulk and the linear velocity inside the channel have been considered the controlling parameters. Comparison between the calculated and the experimental results showed a satisfactory agreement, indicating the utility of the proposed model. Using this model, the minimum adsorber bed length required for dioxin (2,3,7,8-tetrachlorodibenzo-p-dioxin) adsorption has been estimated.
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