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Evaluating the impact of an ammonia-based post-combustion CO2 capture process on a steam power plant with different cooling water temperatures. / Linnenberg, Sebastian; Darde, Victor Camille Alfred; Oexmann, Jochen; Kather, Alfons; van Well, Willy J.M.; Thomsen, Kaj.

In: International Journal of Greenhouse Gas Control, Vol. 10, 2012, p. 1-14.

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

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Linnenberg, Sebastian; Darde, Victor Camille Alfred; Oexmann, Jochen; Kather, Alfons; van Well, Willy J.M.; Thomsen, Kaj / Evaluating the impact of an ammonia-based post-combustion CO2 capture process on a steam power plant with different cooling water temperatures.

In: International Journal of Greenhouse Gas Control, Vol. 10, 2012, p. 1-14.

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

Bibtex

@article{4a30809051e542b3aa479ce75c501d2d,
title = "Evaluating the impact of an ammonia-based post-combustion CO<sub>2</sub> capture process on a steam power plant with different cooling water temperatures",
publisher = "Elsevier Ltd.",
author = "Sebastian Linnenberg and Darde, {Victor Camille Alfred} and Jochen Oexmann and Alfons Kather and {van Well}, {Willy J.M.} and Kaj Thomsen",
year = "2012",
doi = "10.1016/j.ijggc.2012.05.003",
volume = "10",
pages = "1--14",
journal = "International Journal of Greenhouse Gas Control",
issn = "1750-5836",

}

RIS

TY - JOUR

T1 - Evaluating the impact of an ammonia-based post-combustion CO<sub>2</sub> capture process on a steam power plant with different cooling water temperatures

A1 - Linnenberg,Sebastian

A1 - Darde,Victor Camille Alfred

A1 - Oexmann,Jochen

A1 - Kather,Alfons

A1 - van Well,Willy J.M.

A1 - Thomsen,Kaj

AU - Linnenberg,Sebastian

AU - Darde,Victor Camille Alfred

AU - Oexmann,Jochen

AU - Kather,Alfons

AU - van Well,Willy J.M.

AU - Thomsen,Kaj

PB - Elsevier Ltd.

PY - 2012

Y1 - 2012

N2 - <p>The use of aqueous ammonia is a promising option to capture carbon dioxide from the flue gas of coal-fired power plants. Compared to a capture process using monoethanolamine (MEA), the use of ammonia can reduce the heat requirement of the CO<sub>2</sub> desorption significantly, although an additional effort is necessary to provide the cooling of the process. To allow for a fair evaluation of the integration of this CO<sub>2</sub> capture process into a power plant process, an overall process evaluation is carried out. The use of detailed models of the power plant, of the compressor and of the CO<sub>2</sub> capture process enables the calculation of the power loss due to the steam extraction as well as due to the required auxiliary power for CO<sub>2</sub> compression, solvent and cooling pumps and mechanical chillers. To study the influence of the cold end of the process, two power plants with different cooling water temperatures are analysed. Additionally, two different process configurations of the capture plant, with either one single absorber or two absorbers connected in series where the first absorber captures the majority of the CO<sub>2</sub> and the second limits the NH3 slip, are evaluated.The influence of the main process parameters (desorber pressure, solvent circulation rate, solvent recycling rate and chilling temperature) are evaluated and the optimal configuration with respect to the overall net efficiency penalty is determined.The study shows that the configuration of the process with absorption at low temperature (approximately 10°C) with or without precipitation of ammonium carbonate compounds leads to a lower net efficiency penalty than an MEA-based process, assuming that low temperature cooling water is available. An estimate of the size of the absorber shows that the absorber columns of an ammonia-based process are significantly higher than the ones required for an MEA-based process.</p>

AB - <p>The use of aqueous ammonia is a promising option to capture carbon dioxide from the flue gas of coal-fired power plants. Compared to a capture process using monoethanolamine (MEA), the use of ammonia can reduce the heat requirement of the CO<sub>2</sub> desorption significantly, although an additional effort is necessary to provide the cooling of the process. To allow for a fair evaluation of the integration of this CO<sub>2</sub> capture process into a power plant process, an overall process evaluation is carried out. The use of detailed models of the power plant, of the compressor and of the CO<sub>2</sub> capture process enables the calculation of the power loss due to the steam extraction as well as due to the required auxiliary power for CO<sub>2</sub> compression, solvent and cooling pumps and mechanical chillers. To study the influence of the cold end of the process, two power plants with different cooling water temperatures are analysed. Additionally, two different process configurations of the capture plant, with either one single absorber or two absorbers connected in series where the first absorber captures the majority of the CO<sub>2</sub> and the second limits the NH3 slip, are evaluated.The influence of the main process parameters (desorber pressure, solvent circulation rate, solvent recycling rate and chilling temperature) are evaluated and the optimal configuration with respect to the overall net efficiency penalty is determined.The study shows that the configuration of the process with absorption at low temperature (approximately 10°C) with or without precipitation of ammonium carbonate compounds leads to a lower net efficiency penalty than an MEA-based process, assuming that low temperature cooling water is available. An estimate of the size of the absorber shows that the absorber columns of an ammonia-based process are significantly higher than the ones required for an MEA-based process.</p>

KW - Post-combustion CO2 capture

KW - Power plant

KW - Integration

KW - Ammonia

KW - Chilled ammonia process

U2 - 10.1016/j.ijggc.2012.05.003

DO - 10.1016/j.ijggc.2012.05.003

JO - International Journal of Greenhouse Gas Control

JF - International Journal of Greenhouse Gas Control

SN - 1750-5836

VL - 10

SP - 1

EP - 14

ER -