The effect of valley and ridge on composition profile in an azeotropic continuous distillation column.
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概要
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Azeotropic mixtures have a strong non-linearity of vapor-liquid equilibria. The non-linearity called the valley or ridge imposes restrictions on the composition profiles of distillation columns. The valley and ridge make it difficult to determine the system structure, the quantity and the location of make-up solvent. In other words, when designing an azeotropic distillation system, engineers should know the relationships between a valley and ridge and composition profiles. But, since the definition of valley and ridge is vague, these relationships have not been known but are merely interpreted empirically. If these relationships are made clear, it will become easy to select a solvent and to design azeotropic distillation systems. In this paper the above-mentioned relationships for homogeneous and heterogeneous azeotropic distillation systems are presented by experiment, and the effective use of a decanter is discussed on the basis of the relationship between a valley and liquid-liquid tie lines.
- 公益社団法人 化学工学会の論文
著者
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Takamatsu Takeichiro
Department Of Chemical Engineering Kyoto University
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NAKA YUJI
Department of Chemical Engineering, Kyoto University
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KOBAYASHI KIKUO
Department of Chemical Engineering, Kyoto University
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OCHI HITOSHI
Department of Chemical Engineering, Kyoto University
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