THERMODYNAMIC THEORY OF ADSORPTION

THE CONCEPT OF A MONODISPERSE LIQUID ADSORBENT HAS BEEN USED IN THE DEVELOPMENT OF A NEARLY RIGOROUS THERMODYNAMIC THEORY OF ADSORPTION. IT IS FOUND TO BE INSTRUCTIVE TO DISCUSS CHANGES IN INTEGRAL (AS WELL AS PARTIAL MOLAL) PROPERTIES OF THE COMPONENTS OF AN ADSORPTION SYSTEM. CHANGES IN THE PARTIAL MOLAL PROPERTIES OF THE ADSORBENT (ASSOCIATED WITH CHANGES IN SURFACE ENERGIES) ARE SIGNIFICANT, AND SOME ARE LARGE. IT IS PREDICTED THAT CHANGES IN THE ESCAPING TENDENCIES OF SOLID ADSORBENTS WILL BE SEVERAL TIMES AS LARGE AS VALUE CALCULATED FROM ADSORPTION ISOTHERMS WITHOUT AN ALLOWANCE FOR FAILURE OF THE SOLID ADSORBENT TO ATTAIN EQUILIBRIUM WITH ITSELF. /PCA/

• Authors:
  • Copeland, L E
  • Young, T F
• Publication Date: 0

Media Info

• Serial:
  • Portland Cement Assoc R & D Lab Bull
  • Issue Number: 0

Subject/Index Terms

• TRT Terms: Adsorbents; Adsorption; Isotherms; Theory; Thermodynamics
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00213580
• Record Type: Publication
• Source Agency: Portland Cement Association
• Report/Paper Numbers: No 141
• Files: TRIS
• Created Date: Jun 1 1970 12:00AM