Hydrate phase equilibria of CO2+N2+aqueous solution of THF, TBAB or TBAF system

Imen Ben Attouche Sfaxi, Isabelle Durand, Rafael Lugo, Amir H. Mohammadi, Dominique Richon

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We report hydrate dissociation conditions of CO2 (15 and 30mol%)+N2 (85 and 70mol%) in the presence of aqueous solutions of THF, TBAB or TBAF. The concentrations of TBAB and TBAF in the aqueous solutions are 5wt% and 9wt% while THF concentration in aqueous solution is 3mol%. Two different experimental techniques including isochoric pressure search method and a DSC method are used to measure the hydrate dissociation conditions. A comparison is finally made with the literature data. It is expected that this study provides better understanding of hydrate phase equilibria associated with CO2 capture. © 2014 Elsevier Ltd.
Original languageEnglish
JournalInternational Journal of Greenhouse Gas Control
Volume26
Pages (from-to)185-192
ISSN1750-5836
DOIs
Publication statusPublished - 2014

Keywords

  • Calorimetry
  • Clathrate hydrates
  • Gas hydrates
  • Phase equilibrium data
  • Promoter
  • Dissociation
  • Hydration
  • Phase equilibria
  • Solutions
  • Clathrate hydrate
  • Experimental techniques
  • Hydrate dissociation conditions
  • Literature data
  • Search method
  • Carbon dioxide

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