Measurement and Correlation of the Mass-Transfer Coefficient for the Methyl Isobutyl Ketone鈥揥ater鈥揚henol System

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• 作者：Yongli Sun ; Qiudi Zhao ; Luhong Zhang ; Bin Jiang
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2014
• 出版时间：March 5, 2014
• 年：2014
• 卷：53
• 期：9
• 页码：3654-3661
• 全文大小：388K
• 年卷期：v.53,no.9(March 5, 2014)
• ISSN：1520-5045

文摘

To determine the mass-transfer behavior in the extraction of phenol from water with methyl isobutyl ketone, single-droplet experiments were performed to measure mass-transfer coefficients under various conditions. For this purpose, the droplet diameter, the initial concentration of phenol in the aqueous phase, the temperature, and the pH of the aqueous phase were investigated. For the aim of modeling, the molecular diffusivity was multiplied by an empirical factor (R). Then, the molecular diffusivity (D_d) was replaced by the enhanced molecular diffusivity (RD_d) in the Kronig鈥揃rink equation. Finally, the modified correlation of the mass-transfer coefficient model was found to fit well all of the experimental data under all experimental conditions.