Abstract
An analytical mathematical model is used to investigate the influence of minute adsorbent temperature changes on the kinetics of sorption of a gaseous adsorbate from mixture with a carrier gas using a differential closed loop recycle method. Isothermal operation may not be achieved even when a very high gas circulation rate is used. Very small changes in the adsorbent temperature during the process can cause substantial departure from isothermal uptake behavior. It is shown that the kinetic process can be assumed to be isothermal only for trace adsorbate concentrations. A criterion for validity of isothermal data analysis is proposed.
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Sircar, S. Gas sorption kinetics by differential closed-loop recycle method: Effect of heat of adsorption. Adsorption 12, 259–266 (2006). https://doi.org/10.1007/s10450-006-0502-z
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DOI: https://doi.org/10.1007/s10450-006-0502-z