Henry`s law gas-solid chromatography and correlations of virial coefficients for hydrocarbons, chlorofluorocarbons, ethers, and sulfur hexafluoride adsorbed onto carbon
- Univ. of Tennessee, Chattanooga, TN (United States). Dept. of Chemistry
- Erskine Coll., Due West, SC (United States)
Gas-solid chromatography was used to determine the Henry`s law second gas-solid virial coefficients within the temperature range of 314--615 K for ethane, propane, butane, isobutane, pentane, hexane, heptane, chloromethane, dichloromethane, trichloromethane, tetrachloromethane, trichlorofluoromethane (Freon 11), chlorodifluoromethane (Freon 22), dichlorodifluoromethane (Freon 12), methyl ether, ethyl ether, and sulfur hexafluoride with Carbopack B, a microporous carbon adsorbent. The temperature dependence of the second gas-solid virial coefficients of these adsorbates was used in conjunction with analyses based on a graphical method, a single-surface numeric integration method, a single-surface analytic expression method, and a two-surface analytic expression method to determine the gas-solid interaction energies and other parameters. The interaction energies were correlated with a ratio of the critical temperature divided by the square root of the critical pressure. The four methods were compared in their abilities to successfully calculate second gas-solid virial coefficient values.
- OSTI ID:
- 94366
- Journal Information:
- Journal of Colloid and Interface Science, Journal Name: Journal of Colloid and Interface Science Journal Issue: 1 Vol. 173; ISSN 0021-9797; ISSN JCISA5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
40 CHEMISTRY
ACTIVATED CARBON
ADSORPTION
BUTANE
CALCULATION METHODS
CARBON TETRACHLORIDE
CHLOROFLUOROCARBONS
CHLOROFORM
ETHANE
ETHERS
HEXANE
METHYL CHLORIDE
PENTANE
PROPANE
SORPTIVE PROPERTIES
SULFUR FLUORIDES
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
THERMODYNAMIC PROPERTIES