Adsorption of Gas Mixtures: Effect of Energetic Heterogeneity

D. P. Valenzuela; Alan L. Myers; Orhan Talu; I. Zwiebel; Orhan Talu

doi:10.1002/aic.690340306/abstract

Adsorption of Gas Mixtures: Effect of Energetic Heterogeneity

D. P. Valenzuela
, Alan L. Myers
, Orhan Talu
, I. Zwiebel
, Orhan Talu

Cleveland State University

University of Pennsylvania
Cleveland State University

Research output: Contribution to journal › Article › peer-review

Abstract

The ideal adsorbed solution (IAS) theory of adsorption of gas mixtures is extended to the case of energetic heterogeneity. A heterogeneous ideal adsorbed solution (HIAS) behaves ideally on a particular site, but energetic heterogeneity causes a segregation in the composition of the adsorbed phase. Equilibrium properties are obtained by integrating over a multivariate energy distribution based upon perfect positive correlation of site energies. The fact that predictions from HIAS are always an improvement over IAS indicates that heterogeneity is a factor that must be considered in theories of mixed-gas adsorption. Errors in HIAS predictions may be caused by steric exclusion of the larger molecules from micropores accessible to smaller molecules.

Original language	American English
Journal	AIChE Journal
Volume	34
DOIs	https://doi.org/10.1002/aic.690340306/abstract
State	Published - Mar 1 1988

Disciplines

Chemical Engineering
Transport Phenomena

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title = "Adsorption of Gas Mixtures: Effect of Energetic Heterogeneity",

abstract = " The ideal adsorbed solution (IAS) theory of adsorption of gas mixtures is extended to the case of energetic heterogeneity. A heterogeneous ideal adsorbed solution (HIAS) behaves ideally on a particular site, but energetic heterogeneity causes a segregation in the composition of the adsorbed phase. Equilibrium properties are obtained by integrating over a multivariate energy distribution based upon perfect positive correlation of site energies. The fact that predictions from HIAS are always an improvement over IAS indicates that heterogeneity is a factor that must be considered in theories of mixed-gas adsorption. Errors in HIAS predictions may be caused by steric exclusion of the larger molecules from micropores accessible to smaller molecules.",

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note = "D. P. Valenzuela, A. L. Myers, O. Talu2 \& I. Zwiebel3. (1988). Adsorption of Gas Mixtures: Effect of Energetic Heterogeneity. AIChE Journal, 34, 3, 397-402.",

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AU - Valenzuela, D. P.

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AU - Talu, Orhan

AU - Zwiebel, I.

AU - Talu, Orhan

N1 - D. P. Valenzuela, A. L. Myers, O. Talu2 & I. Zwiebel3. (1988). Adsorption of Gas Mixtures: Effect of Energetic Heterogeneity. AIChE Journal, 34, 3, 397-402.

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N2 - The ideal adsorbed solution (IAS) theory of adsorption of gas mixtures is extended to the case of energetic heterogeneity. A heterogeneous ideal adsorbed solution (HIAS) behaves ideally on a particular site, but energetic heterogeneity causes a segregation in the composition of the adsorbed phase. Equilibrium properties are obtained by integrating over a multivariate energy distribution based upon perfect positive correlation of site energies. The fact that predictions from HIAS are always an improvement over IAS indicates that heterogeneity is a factor that must be considered in theories of mixed-gas adsorption. Errors in HIAS predictions may be caused by steric exclusion of the larger molecules from micropores accessible to smaller molecules.

AB - The ideal adsorbed solution (IAS) theory of adsorption of gas mixtures is extended to the case of energetic heterogeneity. A heterogeneous ideal adsorbed solution (HIAS) behaves ideally on a particular site, but energetic heterogeneity causes a segregation in the composition of the adsorbed phase. Equilibrium properties are obtained by integrating over a multivariate energy distribution based upon perfect positive correlation of site energies. The fact that predictions from HIAS are always an improvement over IAS indicates that heterogeneity is a factor that must be considered in theories of mixed-gas adsorption. Errors in HIAS predictions may be caused by steric exclusion of the larger molecules from micropores accessible to smaller molecules.

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DO - 10.1002/aic.690340306/abstract

M3 - Article

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JO - AIChE Journal

JF - AIChE Journal

ER -

Adsorption of Gas Mixtures: Effect of Energetic Heterogeneity

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