Molecular-statistical calculation of the thermodynamic characteristics for separation of deuterated molecules by adsorption

✍ Scribed by D.P. Poshkus

• Publisher: Elsevier Science
• Year: 1970
• Tongue: English
• Weight: 619 KB
• Volume: 49
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(00)93618-5

✦ Synopsis

on graphitised carbon blacks. The differences in the potential functions of the interaction between the isotopic molecules and the adsorbent surface and the differences in the quantum effects for the vibrations of the isotopic molecules mass centres normal to the surface have been taken into account. The results of the calculations are compared with experimental data found in the literature. The differences in the quantum effects for the vibrations of the mass centres of the hydrocarbon isotopic molecules normal to the surface are small and only appreciable for the lightest molecules. The isotopic effect on adsorption of the hydrocarbon molecules on graphitised carbon blacks is mainly caused by the difference in the potential functions of the interactions of isotopic molecules with the surface. The zero point energy effect can also contribute to the isotopic effect for hydrocarbon molecules.