JOURNAL OF CHEMICAL ENGINEERING OF JAPAN | |
A Practical Isotherm Equation for Adsorption on a Heterogeneous Surface and Its Applications to Single and Mixed Gas Adsorption on an Activated Carbon Fiber | |
Nobuyuki Tokunaga1  Tomoshige Nitta1  Takashi Katayama1  Atsushi Yamaguchi1  | |
[1] Department of Chemical Engineering, Osaka University | |
关键词: Adsorption; Isotherm Equation; Patchwise Model; Scaled-Particle Theory; Mixed-Gas Adsorption; Methane; Ethane; Ethylene; Carbon Dioxide; | |
DOI : 10.1252/jcej.24.312 | |
来源: Maruzen Company Ltd | |
【 摘 要 】
References(16)Cited-By(3)A practical isotherm equation based on the scaled-particle theory and a patchwise model has been developed for single- and multi-component adsorption on a heterogeneous surface. The surface energy distribution function used in the model is the asymmetric Gaussian function; however, the continuous distribution is formally changed to four discrete patches, called the four-point approximation model, by means of the Hermite-Gauss quadrature formula in the numerical integration. The model is applied to single-gas adsorption on an activated carbon fiber, KF-1500, at elevated pressures and three temperatures with satisfactory agreement. Four binary gas adsorption data on KF-1500 at 298.15 K and 500 kPa have been obtained and analyzed by the model. The geometric mean assumption for the binary interaction parameters between adsorbed molecules is adequate for binary mixtures of methane + ethane and methane + ethylene, while an adjustable parameter for the binary interactions, kij, is required for binary mixtures of carbon dioxide + ethane and carbon dioxide + ethylene.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912080693297ZK.pdf | 1008KB | download |