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- Title
熱力学平衡物性に基づく新しい半回分式超臨界抽出モデルの開発.
- Authors
大田昌樹; 部真聖; 野村幸一郎; 平賀佑也; 渡邉賢; 猪股 宏
- Abstract
A new dynamic extraction model was developed based on fundamentally thermodynamic equilibrium properties, such as solute solubility in the mobile phase and the solute distribution coefficient between the solid matrix and pseudo-liquid surface in the stationary phase for both supercritical fluid and ambient pressure extractions. In this model, the material balance of solute among the solid matrix, the pseudo-liquid surface and the mobile phase was satisfied at the given time step. The predictive mathematical form was obtained for proving the expression of many types of extraction curves. In addition, this model allows for adsorption isotherm equations instead of the solute distribution coefficient for expression of the extraction curves. In the future, this new model can be widely applied to the semi-batch extractions without kinetic parameters, such as mass transfer and diffusion coefficients, that were usually used in previous models.
- Subjects
THERMODYNAMICS; MASS transfer coefficients; THERMODYNAMIC equilibrium; MATHEMATICAL forms; ADSORPTION isotherms; SOLUBILITY; LIQUID-liquid extraction; SUPERCRITICAL fluids
- Publication
Journal of the Japanese Society of Food Science & Technology / Nippon Shokuhin Kagaku Kogaku Kaishi, 2023, Vol 70, Issue 9, p443
- ISSN
1341-027X
- Publication type
Article
- DOI
10.3136/nskkk.NSKKK-D-23-00050