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PVTxy properties of CO(2) mixtures relevant for CO(2) capture, transport and storage: Review of available experimental data and theoretical models
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
2011 (English)In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 88, no 11, 3567-3579 p.Article in journal (Refereed) Published
Abstract [en]

The knowledge about pressure-volume-temperature-composition (PVTxy) properties plays an important role in the design and operation of many processes involved in CO(2) capture and storage (CCS) systems. A literature survey was conducted on both the available experimental data and the theoretical models associated with the thermodynamic properties of CO(2) mixtures within the operation window of CCS. Some gaps were identified between available experimental data and requirements of the system design and operation. The major concerns are: for the vapour-liquid equilibrium, there are no data about CO(2)/COS and few data about the CO(2)/N(2)O(4) mixture. For the volume property, there are no published experimental data for CO(2)/O(2), CO(2)/CO, CO(2)/N(2)O(4), CO(2)/COS and CO(2)/NH(3) and the liquid volume of CO(2)/H(2). The experimental data available for multi-component CO(2) mixtures are also scarce. Many equations of state are available for thermodynamic calculations of CO(2) mixtures. The cubic equations of state have the simplest structure and are capable of giving reasonable results for the PVTxy properties. More complex equations of state such as Lee-Kesler, SAFT and GERG typically give better results for the volume property, but not necessarily for the vapour-liquid equilibrium. None of the equations of state evaluated in the literature show any clear advantage in CCS applications for the calculation of all PVTxy properties. A reference equation of state for CCS should, thus, be a future goal.

Place, publisher, year, edition, pages
2011. Vol. 88, no 11, 3567-3579 p.
Keyword [en]
CO(2) mixtures, Thermodynamic property, VLE, Density, Equation of state, CO(2) capture and storage
National Category
Chemical Engineering
URN: urn:nbn:se:kth:diva-37534DOI: 10.1016/j.apenergy.2011.03.052ISI: 000293195500002ScopusID: 2-s2.0-79959825045OAI: diva2:434905
QC 20110816Available from: 2011-08-16 Created: 2011-08-15 Last updated: 2011-08-16Bibliographically approved

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