INVESTIGADORES
DAVILA Mara Veronica
artículos
Título:
Exact statistical thermodynamics of alkane binary mixtures in zeolites: New interpretation of the adsorption preference reversal phenomenon from multisite-occupancy theory
Autor/es:
M. DÁVILA; J.L. RICCARDO; A.J. RAMIREZ-PASTOR
Revista:
CHEMICAL PHYSICS LETTERS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2009 p. 402 - 405
ISSN:
0009-2614
Resumen:
The rigorous statistical thermodynamics of mixtures of polyatomic
species adsorbed on one-dimensional substrates is presented. The
thermodynamic functions calculated for a monomerdimer mixture are
applied to describe the adsorption of methaneethane mixtures in
zeolites. The theoretical formalism reproduces the main features of the
system, showing that the displacement of ethane by methane at higher
pressures, a phenomenon known as Adsorption Preference Reversal, is the
result of the difference of size (or number of occupied sites) between
the adsorbed species.