Experimental study of carbon dioxide gas hydrate formation in the presence of zwitterionic compounds

Marek Królikowski , Marta Królikowska , Hamed Hashemi , Paramespri Naidoo , Deresh Ramjugernath , Urszula Domańska-Żelazna

Abstract

n this work, the effect of a series of zwitterionic compounds (ZIs) aqueous solutions on the thermodynamic equilibrium and kinetic conditions of carbon dioxide hydrate formation is investigated. The hydrate dissociation conditions for (CO2 + ZI + water) systems are studied at different concentrations of ZI, viz. (0.10; 0.20, 0.30) mass fraction. The experiment was performed over a temperature range of T = (272–282) K and pressures range of p = (1.27–4.31 MPa) using a high pressure equilibrium cell. In this work the following ZIs: 4-(triethylammonio)butane-1-sulfonate [N222C4S], 4-(tributylammonio)-butane-1-sulfonate [N444C4S] and 4-(tributylphosphonio) butane-1-sulfonate [P444C4S] were investigated, therefore it was possible to determine the influence of alkyl chain length and the structure of the core atom on the kinetic behaviour of carbon dioxide gas hydrate formation. The results show that the gas hydrate phase equilibrium in the presence of zwitterionic compounds is shifted to higher pressures and lower temperatures so that the ZIs act slightly as a thermodynamic inhibitor of hydrate formation.
Author Marek Królikowski (FC / DPC)
Marek Królikowski,,
- Department Of Physical Chemistry
, Marta Królikowska (FC / DPC)
Marta Królikowska,,
- Department Of Physical Chemistry
, Hamed Hashemi
Hamed Hashemi,,
-
, Paramespri Naidoo
Paramespri Naidoo,,
-
, Deresh Ramjugernath
Deresh Ramjugernath,,
-
, Urszula Domańska-Żelazna
Urszula Domańska-Żelazna,,
-
Journal seriesJournal of Chemical Thermodynamics, ISSN 0021-9614, (A 30 pkt)
Issue year2019
Vol137
Pages94-100
Publication size in sheets0.5
Keywords in EnglishCO2 gas hydrateZwitterionic compoundPhase equilibriumExperimental studyThermodynamic modelling
ASJC Classification1606 Physical and Theoretical Chemistry
DOIDOI:10.1016/j.jct.2019.05.018
URL https://www.sciencedirect.com/science/article/pii/S002196141930312X?via%3Dihub
Languageen angielski
File
1-s2.0-S002196141930312X-main.pdf 1.12 MB
Score (nominal)30
ScoreMinisterial score = 30.0, 17-07-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.111; WoS Impact Factor: 2017 = 2.631 (2) - 2017=2.531 (5)
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