New Modeling Approach of Mixing Quality and Axial Hold-Up Distribution in Agitated Liquid-Liquid Flow Mixers for Enabling Process Intensification with Validation using Advanced Techniques

Abstract

Liquid-liquid mixing, extraction, reaction, separation, and beneficiation have found a wide range of industrial applications. New theoretical based models have been developed and validated to enable process intensification by properly predicting the mixing quality and the local dispersed phase hold-up distributions in the axial direction of a continuous liquid-liquid flow mixer. The models relate the mixing index and axial hold-up distributions to a Peclet Number, the average dispersed phase hold-up, the input flow rates and the physical properties of the dispersion. The developed models offer a new understanding of the nature of the mixing process in continuous mixers with two liquid-liquid immiscible phases in flow. Experimental work was also performed to investigate the mixing index and axial dispersed phase hold-up distribution using advanced Laser Transmission Technique (LTT) in a mixer setup. The experimental results were used in validating the models. The experimental and the predicted data agreed well for a wide range of impeller speeds/flow ratios. Furthermore, advanced Gamma-ray based visualization measurement techniques can be integrated to validate the model in an intensifying way.

Meeting Name

2020 AIChE Virtual Spring Meeting and 16th Global Congress on Process Safety (2020: Aug. 17-21, Virtual)

Department(s)

Chemical and Biochemical Engineering

Research Center/Lab(s)

Center for High Performance Computing Research

International Standard Book Number (ISBN)

978-081691113-4

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2021 American Institute of Chemical Engineers (AIChE), All rights reserved.

Publication Date

17 Aug 2020

Link to Full Text

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