This work deals with a thermodynamic and kinetic experimental study of adsorption of gaseous single
Cl/Br-VOCs (1,2-dichloroethane, 1-bromo-2-chloroethane, and 1,2-dibromoethane) onto siliceous ZSM-5
at 25 °C. The adsorbed amounts, adsorption heats, and diffusivities were simultaneously obtained. The
isotherms were of the type I and verified Henry's law in a very large domain of filling. The adsorption heats
and the diffusivities of the brominated molecules displayed specific behaviors probably owing to a transport
resistance. The comparison of the relative position of isotherms and the adsorption heats allowed us to
predict that the competitive adsorption of their mixture would be similar to a distillation. The breakthrough
curves verified this prediction.
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