Modelling and Comparative Analysis of Different Methods of Liquid Membrane Separations
Artak E Kostanyan1, Andrey A Voshkin1, Vera V Belova1
1Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninskii pr., 119991 Moscow, Russia.
Membranes
|June 27, 2023
Summary
Liquid membrane separation methods offer advantages over conventional extraction, particularly emulsion and film pertraction techniques. Modified equipment can overcome challenges like low throughput in liquid membrane separations.
Area of Science:
- Chemical Engineering
- Separation Science
Background:
- Liquid membrane separation is a crucial technique in chemical engineering.
- Various methods exist, including emulsion, supported liquid membranes, film pertraction, and multi-phase extraction.
Purpose of the Study:
- To review and model different liquid membrane separation methods.
- To compare their efficiency against conventional extraction stripping.
- To analyze the impact of flow modes and mass transfer characteristics.
Main Methods:
- Mathematical modeling of liquid membrane processes.
- Comparative analysis of different liquid membrane techniques (emulsion, supported liquid membranes, film pertraction).
- Comparison with conventional conjugated extraction stripping under defined mass transfer assumptions.
Main Results:
- Emulsion and film pertraction show mass transfer advantages over conventional methods when extraction efficiency is high.
- Supported liquid membranes are more efficient than conventional methods when extraction and stripping mass transfer rates differ.
- Liquid membrane methods can be enhanced using modified solvent extraction equipment.
Conclusions:
- Liquid membrane separations offer potential advantages in mass transfer efficiency.
- Challenges in throughput and complexity can be addressed through equipment modification.
- Further optimization of liquid membrane technology is possible for industrial applications.
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