Effects of temperature, pore dimensions and adsorbate on the transition from pore blocking to cavitation in an ink-bottle pore

Klomkliang, Nikom, Do, D.D. and Nicholson, D. (2014) Effects of temperature, pore dimensions and adsorbate on the transition from pore blocking to cavitation in an ink-bottle pore. Chemical Engineering Journal, 239 274-283. doi:10.1016/j.cej.2013.11.019


Author Klomkliang, Nikom
Do, D.D.
Nicholson, D.
Title Effects of temperature, pore dimensions and adsorbate on the transition from pore blocking to cavitation in an ink-bottle pore
Journal name Chemical Engineering Journal   Check publisher's open access policy
ISSN 1385-8947
1873-3212
Publication date 2014-03-01
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.cej.2013.11.019
Open Access Status
Volume 239
Start page 274
End page 283
Total pages 10
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2014
Language eng
Abstract We have carried out comprehensive GCMC molecular simulations to study the effects of temperature (ranging from sub-critical to supercritical), cavity and neck dimensions, and adsorbate on the transition from pore blocking to cavitation in slit shaped ink-bottle pores. Varying these parameters affects, not only the position and the size of the hysteresis loop, but also its shape, which can change from H1, typical for pore blocking, to H1 or H2 combined with Type C (in the de Boer classification). The combined loops can either be fused loops or appear as two separate loops, one of which is of Type H1 and the other Type C. Another highlight of our simulation study is the double maxima in the adsorption isotherm at a supercritical temperature which results from the sigmoidal shape in the plot of bulk gas density versus pressure and the compression of the adsorbate in the confined space at high pressures.
Keyword Adsorption
Cavitation
Hysteresis
Ink-bottle pore
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online 19 November 2013

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2014 Collection
 
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