Binary and Ternary Adsorption of n-Alkane Mixtures on Activated Carbon

✍ Scribed by Grit Kalies; Peter Bräuer; Ulf Messow

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 365 KB
• Volume: 214
• Category: Article
• ISSN: 0021-9797
• DOI: 10.1006/jcis.1999.6190

✦ Synopsis

The adsorption isotherms of the binary n-alkane mixtures n-hexane/n-octane, n-octane/n-tetradecane, and n-hexane/ n-tetradecane on the activated carbon TA 95 are measured at 298 K and described with mathematical functions. About 40 experimental values of the adsorption excess of the ternary mixture n-hexane/n-octane/n-tetradecane on activated carbon TA 95 at 298 K are gas chromatographically measured inside the ternary triangle. The ternary data are represented in the three-dimensional space with the help of transformation of coordinates and by utilization of the conception of the quasi-two-component representation of the mole fractions. A consistency test for the specific wetting Gibbs energies calculated from the binary data is carried out. The possibilities for a mathematical prediction of ternary data from adsorption data for the constituent binary mixtures are proved.