Phase-field modeling for freeze crystallization in a binary system

This article investigates the freeze crystallization process from water-sodium chloride solution. The freeze crystallization process (from 273.15 K to the eutectic point 252.05 K) generates two phases: a solid phase comprising solely ice and a liquid phase consisting of a concentrated solution. The...

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Bibliographic Details
Published inComputer Aided Chemical Engineering
Main Authors Huang, Xiaoqian, Galfré, Aurélie, Couenne, Françoise, Cogné, Claudia
Format Conference Proceeding
LanguageEnglish
Published Elsevier 2024
Subjects
Chemical engineering
Chemical Sciences
Material chemistry
Phase-field model, freeze crystallization, saline solution
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Summary:This article investigates the freeze crystallization process from water-sodium chloride solution. The freeze crystallization process (from 273.15 K to the eutectic point 252.05 K) generates two phases: a solid phase comprising solely ice and a liquid phase consisting of a concentrated solution. The phase-field model approach is used to simu-late the ice crystal growth from a solution and its specific dendritic structure. The ab-sence of solute in the solid phase is challenging to model because of i) the strong non-ideality of the system; ii) the requirement of a continuous salt profile in the interface. The article aims to provide a straightforward approach to address this complexity and study the partition coefficient impact on solute distribution.
ISSN:1570-7946