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Hydrate formation and re-formation in nucleating THF/water mixtures show no evidence to support a “memory” effect

Citation

Wilson, PW and Haymet, ADJ, Hydrate formation and re-formation in nucleating THF/water mixtures show no evidence to support a 'memory' effect, Chemical engineering journal, 161, (1-2) pp. 146-150. ISSN 1385-8947 (2010) [Refereed Article]

DOI: doi:10.1016/j.cej.2010.04.047

Abstract

There are many reports in the chemical engineering literature citing a 'memory' effect in association with nucleation of clathrate hydrates. Some researchers appeal to this memory effect in order to explain the apparent reduction in induction time for hydrates formed repetitively from supercooled solutions. It is suggested that for various species of clathrate in liquid-liquid or gas-liquid systems, such as THF/water, CO2/water and hydrocarbon gas/water, the 'memory' effect results from water which is obtained from melted hydrates possessing a "modified" structure which allows easier hydrate re-formation. We provide here data from several series of measurements of the stochastic nature of THF-water hydrate formation using an automatic lag time apparatus. Our data supports the existing molecular understanding of nucleation and does not require any appeal to a memory effect. © 2010 Elsevier B.V.

Item Details

Item Type:Refereed Article
Research Division:Physical Sciences
Research Group:Condensed Matter Physics
Research Field:Soft Condensed Matter
Objective Division:Energy
Objective Group:Energy Storage, Distribution and Supply
Objective Field:Energy Systems Analysis
Author:Wilson, PW (Professor Peter Wilson)
ID Code:92534
Year Published:2010
Web of Science® Times Cited:28
Deposited By:Faculty of Health
Deposited On:2014-06-23
Last Modified:2014-06-23
Downloads:0

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