For pure component adsorption of CS2, the adsorbed quantity increases with decrease in temperature using the Dubinin-Radushkevic (D-R) equation.
Similarly, for pure component adsorption of H2O vapors, the adsorbed quantity increases with decrease in temperature, using the same equation.
You can kindly see the attached table to see the exact amount of changes in the adsorbed quantity with changing temperature.
We have reasons to believe based on some data that by decreasing the adsorption bed temperature CS2 adsorption may increase, but when we apply simultaneous equations for adsorption proposed by Wood et, al. We see that with decreasing temperature (all other conditions same), the amount of CS2 adsorbed decreases.
We are keeping the partial pressure of CS2 and water vapor constant during the calculations, the saturation pressures are changing with temperature as per Antoinne equation.
1. Are we missing out something since this results is not in line with what we observed in data?
2. Is there any experiment done by any of you researchers who can validate the results?
Thanks a lot for your time.
Kind Regards
Suyash
Suyash Kirti
We did not study such systems. Since no one answered this question, I am the answer, which may help you. You do not write anything about adsorbent. Adsorption depends on it. You adsorb hydrophobic molecules of CS2 and hydrophilic H2O. With increasing temperature, the adsorption of most molecules decreases, and vice versa, increases with decreasing temperature. As a result of the hydrophobic interaction of CS2 with water along with activated carbon, opposite processes are possible. Hydrophobic interaction increases with increasing temperature.
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