The study of multicomponent gas-solid equilibrium at high pressures by gas chromatography: Part II. Generalization of the theory and application to the methane-propane-silica gel system
✍ Scribed by H. B. Gilmer; Riki Kobayashi
- Publisher
- American Institute of Chemical Engineers
- Year
- 1965
- Tongue
- English
- Weight
- 409 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0001-1541
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✦ Synopsis
The mathematical relation for the retention volume for elution chromatography has been extended to include the case of a multicomponent elution gas mixture in which a l l the components are adsorbed appreciably on the adsorbent. The total adsorption, component adsorption, and the K values or the ratio of the gas-phase concentration to the adsorbed-phase concentration for each component are related to the retention volume for the components as measured by a technique which distinguishes the molecules in the elution gas from those in the perturbing sample. Radioactively traced hydrocarbons are used in the application to obtoin the retention volumes appropriote for the theory.
The relations derived were applied in studying the adsorption of methane-propane mixtures on silica gel up to a pressure of 1,000 Ib./sq. in. abs. The internal consistency of the propane adsorption data with the propane infinite dilution data and the methane data with the pure methane adsorption data obtained by a gravimetric method is demonstrated.