Simulated and Experimental Dispersed-Phase Breakage and Coalescence Behavior in a Kühni Liquid-Liquid Extraction Column-Steady State

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• 作者：Luí ; sa N. Gomes ; Margarida L. Guimarã ; es ; Pedro F. R. Regueiras ; Johann Stichlmair ; and José ; J. Cruz Pinto
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2006
• 出版时间：May 24, 2006
• 年：2006
• 卷：45
• 期：11
• 页码：3955 - 3968
• 全文大小：478K
• 年卷期：v.45,no.11(May 24, 2006)
• ISSN：1520-5045

文摘

Given the difficulties normally associated with direct experimentation in liquid-liquid extraction processes,their direct computer simulation has acquired increased relevance and utility, especially when dealing withsome of the details of the dispersed-phase hydrodynamics. The possibility of testing very complex theoreticalmodels of such behavior is increasingly attractive to the researcher, as a result of both the power and theavailability of personal computing resources. Experimental data obtained in a pilot-scale Kühni liquid-liquidextraction column and simulated data generated by means of a drop population-balance model and algorithmwere used to describe and compute the local drop-size distributions and dispersed-phase holdup profiles. Inthis work, the applicability of this algorithm to describe the steady-state behavior of a Kühni liquid-liquidextraction column is illustrated. Data generated using this algorithm exhibit reasonable agreement withexperimental data, with physically meaningful model parameter values.