Comparison of Adsorption of Ethyl Acetate on Activated Carbon and Molecular Sieves 5A and 13X

Adsorption behavior of ethyl acetate is studied on a 5A molecular sieve at four temperatures. The Langmuir, Freundlich, and Langmuir−Freundlich isotherm model parameters and overall effective mass transfer coefficient using the uptake curve method are evaluated. The results of the 5A molecular sieve are compared with those of the 13X molecular sieve and activated carbon reported in the literature. Results show that the isotherms are of Brunauer type I and are well-fitted by the Langmuir isotherm for all the adsorbents. 13X shows adsorption capacity between activated carbon and 5A, where 5A shows the minimum. Enthalpy of adsorption and overall effective mass transfer coefficient are of the order of 105 J·kg-1 and 10-4 s-1, respectively.