Determination of the metastable ice zone for a sodium sulphate system

D. G. Randall; J. Nathoo; F. E. Genceli-Güner; H. J.M. Kramer; G. J. Witkamp; A. E. Lewis

doi:10.1016/j.ces.2011.12.022

Determination of the metastable ice zone for a sodium sulphate system

D. G. Randall^*, J. Nathoo, F. E. Genceli-Güner, H. J.M. Kramer, G. J. Witkamp, A. E. Lewis

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

The crystallisation of ice from a 1. wt% sodium sulphate solution was investigated at different cooling rates and solution volumes in order to determine the metastable zone (MSZ) for the system. The results from this study showed that there was a large variation in nucleation temperatures, thus confirming the stochastic nature of nucleation. The results also showed that the width of the MSZ was independent of solution volumes greater than 250. mL. The nucleation temperatures for smaller solution volumes showed a greater spread than the larger solution volumes. The smallest MSZW for a 1. wt% sodium sulphate solution (1.8. mL volume) was 2.6 °C for a cooling rate of 2 °C/h, 2.8 °C for a cooling rate of 4 °C/h and 4.8 °C for a cooling rate of 8 °C/h.

Original language	English (US)
Pages (from-to)	184-188
Number of pages	5
Journal	CHEMICAL ENGINEERING SCIENCE
Volume	77
DOIs	https://doi.org/10.1016/j.ces.2011.12.022
State	Published - Jul 30 2012
Externally published	Yes

Keywords

Crystallisation
Kinetics
Metastable zone width
Nucleation
Sodium sulphate
Thermodynamics

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

Access to Document

10.1016/j.ces.2011.12.022

Cite this

@article{ec182f058ac843b49df5eee15ee9c1c5,

title = "Determination of the metastable ice zone for a sodium sulphate system",

abstract = "The crystallisation of ice from a 1. wt% sodium sulphate solution was investigated at different cooling rates and solution volumes in order to determine the metastable zone (MSZ) for the system. The results from this study showed that there was a large variation in nucleation temperatures, thus confirming the stochastic nature of nucleation. The results also showed that the width of the MSZ was independent of solution volumes greater than 250. mL. The nucleation temperatures for smaller solution volumes showed a greater spread than the larger solution volumes. The smallest MSZW for a 1. wt% sodium sulphate solution (1.8. mL volume) was 2.6 °C for a cooling rate of 2 °C/h, 2.8 °C for a cooling rate of 4 °C/h and 4.8 °C for a cooling rate of 8 °C/h.",

keywords = "Crystallisation, Kinetics, Metastable zone width, Nucleation, Sodium sulphate, Thermodynamics",

author = "Randall, {D. G.} and J. Nathoo and Genceli-G{\"u}ner, {F. E.} and Kramer, {H. J.M.} and Witkamp, {G. J.} and Lewis, {A. E.}",

year = "2012",

month = jul,

day = "30",

doi = "10.1016/j.ces.2011.12.022",

language = "English (US)",

volume = "77",

pages = "184--188",

journal = "CHEMICAL ENGINEERING SCIENCE",

issn = "0009-2509",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Determination of the metastable ice zone for a sodium sulphate system

AU - Randall, D. G.

AU - Nathoo, J.

AU - Genceli-Güner, F. E.

AU - Kramer, H. J.M.

AU - Witkamp, G. J.

AU - Lewis, A. E.

PY - 2012/7/30

Y1 - 2012/7/30

N2 - The crystallisation of ice from a 1. wt% sodium sulphate solution was investigated at different cooling rates and solution volumes in order to determine the metastable zone (MSZ) for the system. The results from this study showed that there was a large variation in nucleation temperatures, thus confirming the stochastic nature of nucleation. The results also showed that the width of the MSZ was independent of solution volumes greater than 250. mL. The nucleation temperatures for smaller solution volumes showed a greater spread than the larger solution volumes. The smallest MSZW for a 1. wt% sodium sulphate solution (1.8. mL volume) was 2.6 °C for a cooling rate of 2 °C/h, 2.8 °C for a cooling rate of 4 °C/h and 4.8 °C for a cooling rate of 8 °C/h.

AB - The crystallisation of ice from a 1. wt% sodium sulphate solution was investigated at different cooling rates and solution volumes in order to determine the metastable zone (MSZ) for the system. The results from this study showed that there was a large variation in nucleation temperatures, thus confirming the stochastic nature of nucleation. The results also showed that the width of the MSZ was independent of solution volumes greater than 250. mL. The nucleation temperatures for smaller solution volumes showed a greater spread than the larger solution volumes. The smallest MSZW for a 1. wt% sodium sulphate solution (1.8. mL volume) was 2.6 °C for a cooling rate of 2 °C/h, 2.8 °C for a cooling rate of 4 °C/h and 4.8 °C for a cooling rate of 8 °C/h.

KW - Crystallisation

KW - Kinetics

KW - Metastable zone width

KW - Nucleation

KW - Sodium sulphate

KW - Thermodynamics

UR - http://www.scopus.com/inward/record.url?scp=84862878317&partnerID=8YFLogxK

U2 - 10.1016/j.ces.2011.12.022

DO - 10.1016/j.ces.2011.12.022

M3 - Article

AN - SCOPUS:84862878317

SN - 0009-2509

VL - 77

SP - 184

EP - 188

JO - CHEMICAL ENGINEERING SCIENCE

JF - CHEMICAL ENGINEERING SCIENCE

ER -

Determination of the metastable ice zone for a sodium sulphate system

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this