Heat integration and exergy analysis for a supercritical high-ash coal-fired power plant integrated with a post-combustion carbon capture process

Hanak, Dawid P.; Biliyok, Chechet; Yeung, Hoi; Białecki, Ryszard A.

doi:10.1016/j.fuel.2014.05.036

Cited by 73 publications

(35 citation statements)

References 25 publications

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“…Under atmospheric pressure, the rapid absorption of CO 2 by ammonia or alkanolamine solutions has been widely studied and partially applied to industry engineering [4][5][6]. However, this process is energy-intensive for the regeneration of solvent and is also plagued by corrosion problems.…”

Section: Introductionmentioning

confidence: 99%

Properties of carbon dioxide absorption and reduction by sodium borohydride under atmospheric pressure

Zhao

Zhang

Qian

et al. 2015

Fuel

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Section: Introductionmentioning

confidence: 99%

Properties of carbon dioxide absorption and reduction by sodium borohydride under atmospheric pressure

Zhao

Zhang

Qian

et al. 2015

Fuel

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“…Energy integration puts the emphasis on reducing the energy penalty by re-using the waste energy throughout the process [46]. We have evaluated the option of a cooling cascade between the capture plant and the steam cycle condenser.…”

Section: Cooling Cascadementioning

confidence: 99%

Evaluation of cooling requirements of post-combustion CO 2 capture applied to coal-fired power plants

Brandl

Soltani

Fennell

et al. 2017

Chemical Engineering Research and Design

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Whilst CO 2 capture and storage (CCS) technology is widely regarded as being an important tool in mitigating anthropogenic climate change, care must be taken that its extensive deployment does not substantially increase the water requirements of electricity generation. In this work, we present an evaluation of the cooling demand of an amine-based post-combustion CO 2 capture process integrated with a coal-fired power plant. It is found that the addition of a capture unit translates into an increase in the total cooling duty of ≈ 47 % (subcritical), ≈ 33 % (supercritical) and ≈ 31 % (ultra-supercritical) compared to a power plant without capture. However, as the temperature at which this cooling is required varies appreciably throughout the integrated power capture process, it is found that his increase in cooling duty (MW) does not necessarily lead to an increase in cooling water usage (kg H2O /MW). Via a heat integration approach, we demonstrate how astute cascading of cooling water can enable a reduction of cooling water requirements of a decarbonised power plant relative to an unmitigated facility. This is in contrast to previous suggestions that the addition of CCS would double the water footprint.

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“…Hence, assessment of both coal and gas power plant performance under different loads [13,14], combined power and heat plants configurations [15,16] and CO 2 capture plant retrofits [17,18] is widely conducted using computational process http://dx.doi.org/10.1016/j.apenergy.2014. 10.079 0306-2619/Ó 2014 Elsevier Ltd. All rights reserved.…”

Section: Introductionmentioning

confidence: 99%

Probabilistic performance assessment of a coal-fired power plant

et al. 2015

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Heat integration and exergy analysis for a supercritical high-ash coal-fired power plant integrated with a post-combustion carbon capture process

Cited by 73 publications

References 25 publications

Properties of carbon dioxide absorption and reduction by sodium borohydride under atmospheric pressure

Properties of carbon dioxide absorption and reduction by sodium borohydride under atmospheric pressure

Evaluation of cooling requirements of post-combustion CO 2 capture applied to coal-fired power plants

Probabilistic performance assessment of a coal-fired power plant

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