Theoretical Aspects of Multicomponent Adsorption Equilibria. Part I: Development of a Computationally Fast Adsorption Isothem Model That Can be Applied to Systems Which Demonstrate Energetic Heterogeneity.

Abstract

Theoretical aspects of multicomponent adsorption equilibria are investigated with a focus on the thermodynamically based Adsorbed Solution Theory (AST). This report details the development of a computationally fast, heterogeneous, biaary adsorption relation using the Langmuir isotherm with the Ideal AST (IAST) as the local, single component and mixture adsorption models. Equations are developed for binary systems which display both equal and unequal saturation/monolayer coverages. Additionally, equations for random and perfectly correlated heterogeneous site matching are developed. Theoretical results plotted as deviations from exact solutions indicate that the developed equations generate consistently better results than analogous homogeneous relations.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1997
Accession Number
ADA325445

Entities

People

  • Richard A. Matuszko
  • Robert A. Lamontage

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Adsorbates
  • Adsorption
  • Algorithms
  • Chemistry
  • Computational Science
  • Distribution Curves
  • Distribution Functions
  • Equations
  • Heterogeneity
  • Isotherms
  • Models
  • Monomolecular Films
  • Partial Pressure
  • Probability
  • Probability Density Functions
  • Saturation
  • Vapor Phases

Readers

  • Calculus or Mathematical Analysis
  • Electrochemical Engineering/ Fuel Cell Technologies