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Evaluating cubic equations of state for calculation of vapor-liquid equilibrium of CO(2) and CO(2)-mixtures for CO(2) capture and storage processes
Royal Institute of Technology.ORCID iD: 0000-0002-6279-4446
Mälardalen University, School of Sustainable Development of Society and Technology. Energiteknik. (PRO)ORCID iD: 0000-0003-0300-0762
2009 (English)In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 86, no 6, p. 826-836Article in journal (Refereed) Published
Abstract [en]

Proper solution of vapor liquid equilibrium (VLE) is essential to the design and operation of CO2 capture and storage system (CCS). According to the requirements of engineering applications, cubic equations of state (EOS) are preferable to predict VLE properties. This paper evaluates the reliabilities of five cubic EOSs, including PR, PT, RK, SRK and 3P1T for predicting VLE of CO2 and binary CO2-mixtures containing CH4, H2S, SO2, Ar, N2 or O2, based on the comparisons with the collected experimental data. Results show that SRK is superior in the calculations about the saturated pressure of pure CO2; while for the VLE properties of binary CO2-mixtures, PR, PT and SRK are generally superior to RK and 3P1T. The impacts of binary interaction parameter kij were also analyzed. kij has very clear effects on the calculating accuracy of an EOS in the property calculations of CO2-mixtures. In order to improve the calculation accuracy, the binary interaction parameter was calibrated for all of the studied EOSs regarding every binary CO2-mixture.

Place, publisher, year, edition, pages
2009. Vol. 86, no 6, p. 826-836
Keywords [en]
CO2 capture and storage; Vapor liquid equilibria; Cubic equation of state; Binary interaction parameter; CO2 binary CO2-mixtures
Research subject
Energy- and Environmental Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-3176DOI: 10.1016/j.apenergy.2008.05.018ISI: 000264657300005Scopus ID: 2-s2.0-60549097049OAI: oai:DiVA.org:mdh-3176DiVA, id: diva2:115840
Available from: 2008-08-19 Created: 2008-08-19 Last updated: 2017-12-14Bibliographically approved

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LI, HailongYan, Jinyue

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CiteExportLink to record
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  • apa
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