Hydrogen Combined Cycles for Low-Carbon Power and Long-Term Carbon Storage.

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Title: Hydrogen Combined Cycles for Low-Carbon Power and Long-Term Carbon Storage.
Authors: Gonçalves, Julliana Muniz1 (AUTHOR) jmgoncalves@firjan.com.br, Silva, Gustavo Brêtas Fernandes da1,2 (AUTHOR), Interlenghi, Stefano Ferrari1,3 (AUTHOR), Maia, Jeiveison Gobério Soares Santos1,2 (AUTHOR), Campos, Gustavo Bonolo de2,3 (AUTHOR)
Source: Energies (19961073). Mar2026, Vol. 19 Issue 5, p1275. 32p.
Subject Terms: *Hydrogen as fuel, *Carbon sequestration, *Electric power production, *Carbon dioxide mitigation, *Energy industries, *Sustainability, *Hydrogen
Abstract: This study presents a comprehensive sustainability assessment of power generation configurations integrating blue hydrogen combined cycles with different carbon capture technologies. Four scenarios were systematically evaluated through process simulation and multi-criteria decision analysis, encompassing technical, economic, environmental, and social indicators. The assessed configurations comprise a conventional natural gas combined cycle, representing the current carbon-based benchmark, alongside three innovative blue hydrogen combined-cycle pathways incorporating distinct carbon capture technologies. The results demonstrate pronounced trade-offs among the evaluated scenarios: although the conventional configuration exhibits superior economic performance, it presents the least favorable environmental outcome, with a carbon intensity approximately an order of magnitude higher than that of the hydrogen-based alternatives. In terms of electricity generation potential, hydrogen-fired combined cycles achieve comparable energy performance, delivering 0.103 kWh per kJ of hydrogen relative to 0.116 kWh per kJ of natural gas. For all evaluated configurations, the chemical absorption case achieved the highest overall sustainability performance, attaining a sustainability degree of 1.41, corresponding to a 25% improvement over the conventional process. The findings of the present work underscore the potential of integrating blue hydrogen combined cycles to substantially improve the sustainability of electricity generation while supporting decarbonization pathways within the energy sector. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 192641000
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  Data: Hydrogen Combined Cycles for Low-Carbon Power and Long-Term Carbon Storage.
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  Data: <searchLink fieldCode="AR" term="%22Gonçalves%2C+Julliana+Muniz%22">Gonçalves, Julliana Muniz</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jmgoncalves@firjan.com.br</i><br /><searchLink fieldCode="AR" term="%22Silva%2C+Gustavo+Brêtas+Fernandes+da%22">Silva, Gustavo Brêtas Fernandes da</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Interlenghi%2C+Stefano+Ferrari%22">Interlenghi, Stefano Ferrari</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Maia%2C+Jeiveison+Gobério+Soares+Santos%22">Maia, Jeiveison Gobério Soares Santos</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Campos%2C+Gustavo+Bonolo+de%22">Campos, Gustavo Bonolo de</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Mar2026, Vol. 19 Issue 5, p1275. 32p.
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  Data: *<searchLink fieldCode="DE" term="%22Hydrogen+as+fuel%22">Hydrogen as fuel</searchLink><br />*<searchLink fieldCode="DE" term="%22Carbon+sequestration%22">Carbon sequestration</searchLink><br />*<searchLink fieldCode="DE" term="%22Electric+power+production%22">Electric power production</searchLink><br />*<searchLink fieldCode="DE" term="%22Carbon+dioxide+mitigation%22">Carbon dioxide mitigation</searchLink><br />*<searchLink fieldCode="DE" term="%22Energy+industries%22">Energy industries</searchLink><br />*<searchLink fieldCode="DE" term="%22Sustainability%22">Sustainability</searchLink><br />*<searchLink fieldCode="DE" term="%22Hydrogen%22">Hydrogen</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study presents a comprehensive sustainability assessment of power generation configurations integrating blue hydrogen combined cycles with different carbon capture technologies. Four scenarios were systematically evaluated through process simulation and multi-criteria decision analysis, encompassing technical, economic, environmental, and social indicators. The assessed configurations comprise a conventional natural gas combined cycle, representing the current carbon-based benchmark, alongside three innovative blue hydrogen combined-cycle pathways incorporating distinct carbon capture technologies. The results demonstrate pronounced trade-offs among the evaluated scenarios: although the conventional configuration exhibits superior economic performance, it presents the least favorable environmental outcome, with a carbon intensity approximately an order of magnitude higher than that of the hydrogen-based alternatives. In terms of electricity generation potential, hydrogen-fired combined cycles achieve comparable energy performance, delivering 0.103 kWh per kJ of hydrogen relative to 0.116 kWh per kJ of natural gas. For all evaluated configurations, the chemical absorption case achieved the highest overall sustainability performance, attaining a sustainability degree of 1.41, corresponding to a 25% improvement over the conventional process. The findings of the present work underscore the potential of integrating blue hydrogen combined cycles to substantially improve the sustainability of electricity generation while supporting decarbonization pathways within the energy sector. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
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        Value: 10.3390/en19051275
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      – Code: eng
        Text: English
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        PageCount: 32
        StartPage: 1275
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      – SubjectFull: Hydrogen as fuel
        Type: general
      – SubjectFull: Carbon sequestration
        Type: general
      – SubjectFull: Electric power production
        Type: general
      – SubjectFull: Carbon dioxide mitigation
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      – SubjectFull: Energy industries
        Type: general
      – SubjectFull: Sustainability
        Type: general
      – SubjectFull: Hydrogen
        Type: general
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      – TitleFull: Hydrogen Combined Cycles for Low-Carbon Power and Long-Term Carbon Storage.
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            NameFull: Gonçalves, Julliana Muniz
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            NameFull: Silva, Gustavo Brêtas Fernandes da
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            NameFull: Interlenghi, Stefano Ferrari
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            NameFull: Maia, Jeiveison Gobério Soares Santos
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            NameFull: Campos, Gustavo Bonolo de
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            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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              Value: 19
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              Value: 5
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            – TitleFull: Energies (19961073)
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