6533b830fe1ef96bd129794a

RESEARCH PRODUCT

Thermodynamics and Kinetics of Adsorption of Gaseous Single Cl/Br-VOCs of the Ethane Series onto Siliceous ZSM-5 at 25 °C. Prediction of the Adsorption Selectivity in the Gas Phase

Bénédicte GarrotMarie-hélène Simonot-grange And

subject

Work (thermodynamics)ChemistryKineticsThermodynamicsSurfaces and InterfacesCondensed Matter PhysicsKinetic energylaw.inventionGas phaseAdsorptionlawElectrochemistryMoleculePhysical chemistryGeneral Materials ScienceZSM-5DistillationSpectroscopy

description

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.

yearjournalcountryeditionlanguage
2001-12-01Langmuir
https://doi.org/10.1021/la0109011