Eutectic freeze crystallization simultaneous formation and separation of two solid phases

Ham, F. van; Witkamp, Geert‐Jan; Graauw, J. de; Rosmalen, G.M. van

doi:10.1016/s0022-0248(98)01003-3

Cited by 50 publications

(30 citation statements)

References 4 publications

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“…When compared to conventional evaporative crystallization, the energy required for EFC can be reduced by up to 70% and the 100% conversion into water and salt is an advantage [64]. EFC system analysis and modelling have been conducted to simulate its transient behaviour [61][62][63].…”

Section: Eutectic Freeze Crystallisation (Efc)mentioning

confidence: 99%

A review on the coupling of cooling, desalination and solar photovoltaic systems

Byrne

Fournaison

Delahaye

et al. 2015

Renewable and Sustainable Energy Reviews

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Section: Eutectic Freeze Crystallisation (Efc)mentioning

confidence: 99%

A review on the coupling of cooling, desalination and solar photovoltaic systems

Byrne

Fournaison

Delahaye

et al. 2015

Renewable and Sustainable Energy Reviews

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“…Very pure water and solid salt can be simultaneously recovered from electrolyte solutions by eutectic freeze crystallization (EFC) at low energy costs, and very high yields [1,2]. Previous work dealt with the prototypes cooled disc column crystallizer (CDCC-1) and scraped cooled wall crystallizer (SCWC-1) [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Eutectic freeze crystallization in a 2nd generation cooled disk column crystallizer for MgSO4·H2O system

Genceli

Gärtner

Witkamp

2005

Journal of Crystal Growth

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“…It could well be that the acid was expelled from the ice membrane. This phenomenon is also used in a process called eutectic freezing crystallization where water and salt are separated by freezing a salt solution; pure water and pure salt are then obtained 21 . This resistance increase was the most prominent for the 0.1 M ice membrane, as it contained fewest protons, while the increase was only minor for the 1 M ice membrane, as it contained most protons.…”

Section: Resultsmentioning

confidence: 99%

An acid‐doped ice membrane for selective proton transport

Sleutels¹,

Kaniadakis²,

Oladimeji³

et al. 2020

Int J Energy Res

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Cation exchange membranes need to have high permselectivity for protons to make these membranes suitable for, for example, energy storage devices. Here, we present the proof of concept for a proton selective membrane made of hydrochloric acid-doped ice. The proton selectivity of this acid-doped ice membrane is the result of defects in the ice structure, caused by the acid. Ice membranes were made from different hydrochloric acid concentrations (0.1-2.0 M). The proton permselectivity of all ice membranes was above 99.7% when both Na + and K + were present. The resistivity decreased exponentially with the concentration of acid in the ice membrane, reaching a value of 12 Ω.cm. The ice membranes were tested in an electrochemical cell using the Fe/Fe 2+ and Fe 2+ /Fe 3+ redox couples, and a power density of 7 W/m 2 and OCV of 0.87 V were measured. The resistance of the ice membrane increased with time as protons moved from the ice structure, as determined from the higher pH of the ice after melting. These expelled protons (and corresponding counter charged ions) were not replaced by other mobile cations, indicating a permanent loss in conductivity, but not selectivity. To apply the ice membrane as a selective separator for protons in energy storage devices in the future, the membrane thickness should be reduced and the protons should be retained inside the ice.

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Eutectic freeze crystallization simultaneous formation and separation of two solid phases

Cited by 50 publications

References 4 publications

A review on the coupling of cooling, desalination and solar photovoltaic systems

A review on the coupling of cooling, desalination and solar photovoltaic systems

Eutectic freeze crystallization in a 2nd generation cooled disk column crystallizer for MgSO4·H2O system

An acid‐doped ice membrane for selective proton transport

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