Comparison of two electrolyte models for the carbon capture with aqueous ammonia

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Comparison of two electrolyte models for the carbon capture with aqueous ammonia. / Darde, Victor; Thomsen, Kaj; van Well, Willy J.M.; Bonalumi, Davide; Valenti, Gianluca; Macchi, Ennio.

In: International Journal of Greenhouse Gas Control, Vol. 8, 2012, p. 61-72.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Author

Darde, Victor; Thomsen, Kaj; van Well, Willy J.M.; Bonalumi, Davide; Valenti, Gianluca; Macchi, Ennio / Comparison of two electrolyte models for the carbon capture with aqueous ammonia.

In: International Journal of Greenhouse Gas Control, Vol. 8, 2012, p. 61-72.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{14eef1b20d23415293ee3059602bdc35,
title = "Comparison of two electrolyte models for the carbon capture with aqueous ammonia",
keywords = "CO2 capture, Thermodynamic model, Aqueous ammonia, Chilled ammonia, Extended UNIQUAC, eNRTL, Aspen Plus, Process simulation",
publisher = "Elsevier Ltd.",
author = "Victor Darde and Kaj Thomsen and {van Well}, {Willy J.M.} and Davide Bonalumi and Gianluca Valenti and Ennio Macchi",
year = "2012",
doi = "10.1016/j.ijggc.2012.02.002",
volume = "8",
pages = "61--72",
journal = "International Journal of Greenhouse Gas Control",
issn = "1750-5836",

}

RIS

TY - JOUR

T1 - Comparison of two electrolyte models for the carbon capture with aqueous ammonia

A1 - Darde,Victor

A1 - Thomsen,Kaj

A1 - van Well,Willy J.M.

A1 - Bonalumi,Davide

A1 - Valenti,Gianluca

A1 - Macchi,Ennio

AU - Darde,Victor

AU - Thomsen,Kaj

AU - van Well,Willy J.M.

AU - Bonalumi,Davide

AU - Valenti,Gianluca

AU - Macchi,Ennio

PB - Elsevier Ltd.

PY - 2012

Y1 - 2012

N2 - Post-combustion carbon capture is attracting much attention due to the fact that it can be retrofitted on existing coal power plants. Among the most interesting technologies is the one that employs aqueous ammonia solutions to absorb the generated carbon dioxide. The evaluation of such process requires the modeling of electrolyte solutions. In this work two thermodynamic models for electrolyte solutions are compared against each other with respect to experimental data. They are the e-NRTL model and the Extended UNIQUAC model, both implemented in the commercial software Aspen Plus®1 (version 7.2). Subsequently, a simple absorption/regeneration layout is simulated employing both models and the process performances are compared. In general, the Extended UNIQUAC appears to describe the experimental data for larger ranges of temperature, pressure and concentration of ammonia more satisfactorily. The energy performances computed with the Extended UNIQUAC models are less promising than with the e-NRTL model.

AB - Post-combustion carbon capture is attracting much attention due to the fact that it can be retrofitted on existing coal power plants. Among the most interesting technologies is the one that employs aqueous ammonia solutions to absorb the generated carbon dioxide. The evaluation of such process requires the modeling of electrolyte solutions. In this work two thermodynamic models for electrolyte solutions are compared against each other with respect to experimental data. They are the e-NRTL model and the Extended UNIQUAC model, both implemented in the commercial software Aspen Plus®1 (version 7.2). Subsequently, a simple absorption/regeneration layout is simulated employing both models and the process performances are compared. In general, the Extended UNIQUAC appears to describe the experimental data for larger ranges of temperature, pressure and concentration of ammonia more satisfactorily. The energy performances computed with the Extended UNIQUAC models are less promising than with the e-NRTL model.

KW - CO2 capture

KW - Thermodynamic model

KW - Aqueous ammonia

KW - Chilled ammonia

KW - Extended UNIQUAC

KW - eNRTL

KW - Aspen Plus

KW - Process simulation

U2 - 10.1016/j.ijggc.2012.02.002

DO - 10.1016/j.ijggc.2012.02.002

JO - International Journal of Greenhouse Gas Control

JF - International Journal of Greenhouse Gas Control

SN - 1750-5836

VL - 8

SP - 61

EP - 72

ER -