Power generation plants with carbon capture and storage: A techno-economic comparison between coal combustion and gasification technologies

Tola, Vittorio; Pettinau, Alberto

doi:10.1016/j.apenergy.2013.09.007

Cited by 155 publications

(58 citation statements)

References 59 publications

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“…Similar findings were also confirmed by Seckin et al [177]; the authors used 1, 4, 5, 6-tetrahydropyrimidine polymer compound to capture CO 2 and concluded that this method was more feasible compared to other CO 2 capture methods. The effectiveness of CO 2 binding was due to the 1:1 nature of amidine groups in the 1, 4, 5, 6-tetrahydropyrimidine [174]. These findings could pave the way for the use of carbon dioxide capture technologies via amidine systems [175].…”

Section: Geological Storage Of Comentioning

confidence: 90%

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The Potential of CO2 Capture and Storage Technology in South Africa’s Coal-Fired Thermal Power Plants

Yoro

Sekoai

2016

Environments

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Abstract:The global atmospheric concentration of anthropogenic gases, such as carbon dioxide, has increased substantially over the past few decades due to the high level of industrialization and urbanization that is occurring in developing countries, like South Africa. This has escalated the challenges of global warming. In South Africa, carbon capture and storage (CCS) from coal-fired power plants is attracting increasing attention as an alternative approach towards the mitigation of carbon dioxide emission. Therefore, innovative strategies and process optimization of CCS systems is essential in order to improve the process efficiency of this technology in South Africa. This review assesses the potential of CCS as an alternative approach to reducing the amount CO 2 emitted from the South African coal-fired power plants. It examines the various CCS processes that could be used for capturing the emitted CO 2 . Finally, it proposes the use of new adsorbents that could be incorporated towards the improvement of CCS technology.

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Section: Geological Storage Of Comentioning

confidence: 90%

“…It was indicated that activated carbon and polymer-based adsorbents are the best type of physical adsorbents to be used for CO 2 capture. They produce about a 75%-80% pure CO 2 stream at a recovery of 90% [174]. Adsorption systems do not use high energy, and the recovery is far less than the chemical absorption methods [175].…”

Section: Geological Storage Of Comentioning

confidence: 99%

The Potential of CO2 Capture and Storage Technology in South Africa’s Coal-Fired Thermal Power Plants

Yoro

Sekoai

2016

Environments

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“…Steam extraction leads to a substantial power reduction in the steam cycle. Other sources of power reduction are the exhaust gas fans, solvent circulation pumps, and CO2 compression up to a pressure suitable for transport and storage, CO2 removal and pumping [4,[13][14]. Significant R&D projects are dedicated to both the research of less expensive solvents as well as the development of more efficient capture and compression processes [15][16].…”

Section: Introductionmentioning

confidence: 99%

“…Many studies, however, have shown that CO2 capture from power plants is both very capital-and energyintensive [2][3][4][5]. For an example, integration of a postcombustion CO2 removal system with a natural gas-fueled combined cycle (NGCC) reduces the net plant efficiency of [8][9][10][11] percentage points (at 90% overall CO2 capture) [6][7].…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of an Organic Rankine Cycle fed by waste heat recovered from CO2 capture section

Tola¹,

Finkenrath²

2015

Int. J. Thermo

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Natural gas-fueled combined cycle (NGCC) allows to reach the best performance among power plants fed by fossil fuels, but causes considerable CO2 emissions. With the aim of reducing greenhouse gases impact, NGCC could be integrated with post-combustion CO2 removal systems, typically based on chemical solvents like amines, that cause very large net efficiency penalties (about 9-12 percentage points at 90% overall CO2 capture). To reduce these high capture penalties, exhaust gas recirculation (EGR) has been studied. To further enhance the overall plant efficiency, the recovery of available low temperature heat from the solvent-based CO2 removal systems could be also performed. Low temperature heat is available in flue gas coolers (80-100°C), in the amine reboiler water cooling (130-140°C) and in the splitter condenser (100-130 °C). This waste thermal energy could be recovered by means of an Organic Rankine Cycle (ORC) that is able to convert heat into electricity efficiently even at comparably low temperatures. N-Butane was found to be as the most promising organic working fluid for the cycle operating temperatures and pressures. ORC produces additional electrical power improving the global performance of the power plant, for example, up to 1-1.5 percentage points in efficiency.

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“…The CCS technique involves capturing waste CO 2 from large sources such as fossil fuel-powered electricity generation plants, transporting it to a storage site, and depositing it in underground sequestration sites (Liu et al, 2014;Tola and Pettinau, 2014). Commercial-scale transport of CO 2 uses tanks, ships, trains and pipelines.…”

Section: Introductionmentioning

confidence: 99%

Computational fluid dynamics simulation of carbon dioxide dispersion in a complex environment

Liu

Lü

et al. 2016

Journal of Loss Prevention in the Process Industries

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Power generation plants with carbon capture and storage: A techno-economic comparison between coal combustion and gasification technologies

Cited by 155 publications

References 59 publications

The Potential of CO2 Capture and Storage Technology in South Africa’s Coal-Fired Thermal Power Plants

The Potential of CO2 Capture and Storage Technology in South Africa’s Coal-Fired Thermal Power Plants

Performance evaluation of an Organic Rankine Cycle fed by waste heat recovered from CO2 capture section

Computational fluid dynamics simulation of carbon dioxide dispersion in a complex environment

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