Abstract
Hydrate-containing phase equilibria for mixtures composed of carbon dioxide, nitrogen and water are of potential importance for the flow assurance in the transportation of captured carbon dioxide. Literature data for such mixture tend to be reported on water free basis. In this study three- and four-phase equilibria were experimentally studied at the pressure ranging from 5 to 20. MPa. Isobaric dissolution temperatures of formed hydrates were measured and reported for accurately determined loading compositions. Complex phase behaviors composed of two-, three- and four- phases were observed and they were analyzed by comparing with calculations using GSMGem program developed by Sloan and Koh [1]. Phase equilibria were found to be sensitive to water contents in water dominating mixtures. CSMGem and HYSYS (version 7.1) from AspenTech calculations were found in general agreements with present and literature data.
| Original language | English |
|---|---|
| Pages (from-to) | 229-233 |
| Number of pages | 5 |
| Journal | Fluid Phase Equilibria |
| Volume | 306 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2011 Jul 25 |
Bibliographical note
Funding Information:The authors are grateful to Korea Ocean Research and Development Institute for financial support.
Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
Keywords
- Four-phase equilibrium
- Hydrate-containing equilibrium
- Three-phase equilibrium
ASJC Scopus subject areas
- General Chemical Engineering
- General Physics and Astronomy
- Physical and Theoretical Chemistry