Preliminary Performance and Cost Evaluation of Four Alternative Technologies for Post-Combustion CO2 Capture in Natural Gas-Fired Power Plants

Gatti, Manuele; Martelli, Emanuele; Bona, Daniele Di; Gabba, Marco; Scaccabarozzi, Roberto; Spinelli, Maurizio; Viganò, Federico; Consonni, Stefano

doi:10.3390/en13030543

Cited by 22 publications

(6 citation statements)

References 25 publications

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“…Herein, the feeding gas contained a mixture of 5% CO 2 and 95% N 2 , with a controlled constant flow rate of 10 mL/min. This gas balance was chosen to mimic conditions in which the target molecule, i.e., CO 2 , corresponds to physical scenarios that are representative of current challenges in gas separation technologies [ 55 , 56 ], with carbon capture and storage (CCS) processes [ 55 , 57 , 58 , 59 , 60 , 61 , 62 ], for instance, targeting uptake of CO 2 at dilute concentrations in power plants and chemical refineries [ 56 , 58 , 63 , 64 , 65 ]. The self-made membrane module also comprised a gas chamber for gas flow and liquid chamber for removing any product being released.…”

Section: Methodsmentioning

confidence: 99%

Active Nanointerfaces Based on Enzyme Carbonic Anhydrase and Metal–Organic Framework for Carbon Dioxide Reduction

et al. 2021

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Carbonic anhydrases are enzymes capable of transforming carbon dioxide into bicarbonate to maintain functionality of biological systems. Synthetic isolation and implementation of carbonic anhydrases into membrane have recently raised hopes for emerging and efficient strategies that could reduce greenhouse emission and the footprint of anthropogenic activities. However, implementation of such enzymes is currently challenged by the resulting membrane’s wetting capability, overall membrane performance for gas sensing, adsorption and transformation, and by the low solubility of carbon dioxide in water, the required medium for enzyme functionality. We developed the next generation of enzyme-based interfaces capable to efficiently adsorb and reduce carbon dioxide at room temperature. For this, we integrated carbonic anhydrase with a hydrophilic, user-synthesized metal–organic framework; we showed how the framework’s porosity and controlled morphology contribute to viable enzyme binding to create functional surfaces for the adsorption and reduction of carbon dioxide. Our analysis based on electron and atomic microscopy, infrared spectroscopy, and colorimetric assays demonstrated the functionality of such interfaces, while Brunauer–Emmett–Teller analysis and gas chromatography analysis allowed additional evaluation of the efficiency of carbon dioxide adsorption and reduction. Our study is expected to impact the design and development of active interfaces based on enzymes to be used as green approaches for carbon dioxide transformation and mitigation of global anthropogenic activities.

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Section: Methodsmentioning

confidence: 99%

Active Nanointerfaces Based on Enzyme Carbonic Anhydrase and Metal–Organic Framework for Carbon Dioxide Reduction

et al. 2021

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“…The equations for cost estimation are listed in Table 5. For the power section, α is 0.7, β is 0.45, and γ is 0.35; for the CO 2 removal section, α is 1.1, β is 0.45, and γ is 0.7 (Gatti et al, 2020).…”

Section: Frontiers In Energy Researchmentioning

confidence: 99%

“…Figure 8A shows the thermodynamic performance (SPECCA) of the systems investigated. The cost per kW MCFC is fixed at 555 $/kW (Gatti et al, 2020). Over the last 20 years, the MCFC cost has been reduced significantly (Campanari et al, 2014), and further decrease exists according to DOE targets (Spendelow et al, 2012).…”

Section: Frontiers In Energy Researchmentioning

confidence: 99%

Study on MCFC-integrated GSCC systems with SEGR in parallel or series and CO2 capture

Bian,

Duan

2023

Front. Energy Res.

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In this paper, two new molten carbonate fuel cell (MCFC)-integrated gas–steam combined cycle (GSCC) systems with selective exhaust gas recirculation (SEGR) and CO2 capture are proposed and analyzed. The CO2 concentration in the gas turbine emission is increased because CO2 is selectively recycled with the help of SEGR. Molten carbonate fuel cells (MCFCs) are another way to increase CO2 concentration in the gas turbine flue gas by translating only CO2 from the cathode to the anode. In these two new gas–steam combined cycle systems, SEGR connected with MCFC, either in parallel or series, increases CO2 concentration beyond 11%. A gas–steam combined cycle system combined with MCFC and CO2 capture without SEGR is used as the reference system. Aspen Plus software is adopted to build the system models, and the performances of different systems are discussed and compared. The research results reveal that for the MCFC-integrated gas–steam combined cycle system with SEGR in series and CO2 capture, the CO2 concentration of gas turbine exhaust increases to 11.72% and the thermal efficiency is 56.29% when the overall CO2 capture rate is 88.16%, which is 1.13% higher than that of the reference system; for the MCFC-integrated gas–steam combined cycle system with SEGR in parallel and CO2 capture, the CO2 concentration of gas turbine exhaust increases to 14.15% and the thermal efficiency is 56.62%, which is 1.46% higher than that of the reference system. Furthermore, the economic analysis results show that the economic performances of new systems are mainly influenced by MCFC cost and will be gradually improved with the decrease in the MCFC cost.

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“…Indeed, MCFC combines the advantage of capturing CO 2 emissions while producing useful power. Moreover, as demonstrated by Gatti et al [6], the integration of MCFC in natural gas combined-cycle power plants also permits a target of lower costs of CO 2 captured if compared with the monoethanolamine (MEA) and aqueous piperazine (PZ) absorption, and is more attractive in terms of energy penalty. A similar analysis, but including economic analysis and carrying out a bottom-up approach for the Sustainability 2022, 14, 533 2 of 16 identification of plant costs, has been conducted by Campanari et al [7].…”

Section: Introductionmentioning

confidence: 99%

Exergetic Analysis of a Natural Gas Combined-Cycle Power Plant with a Molten Carbonate Fuel Cell for Carbon Capture

2022

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This study aims to propose the repowering of an existing Italian natural-gas fired combined cycle power plant through the integration of Molten Carbonate Fuel Cells (MCFC) downstream of the gas turbine for CO2 capture and to pursuit an exergetic analysis of the two schemes. The flue gases of the turbine are used to feed the cathode of the MCFC, where CO2 is captured and transported to the anode while generating electric power. The retrofitted plant produces 787.454 MW, in particular, 435.29 MW from the gas turbine, 248.9 MW from the steam cycle, and 135.283 MW from the MCFC. Around 42.4% of the exergy destruction has been obtained, the majority belonging to the combustion chamber and, in minor percentages, to the gas turbine and the MCFC. The overall net plant efficiency and net exergy efficiency are estimated to be around 55.34 and 53.34%, respectively. Finally, the specific CO2 emission is around 66.67 kg/MWh, with around 2 million tons of carbon dioxide sequestrated.

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Preliminary Performance and Cost Evaluation of Four Alternative Technologies for Post-Combustion CO2 Capture in Natural Gas-Fired Power Plants

Cited by 22 publications

References 25 publications

Active Nanointerfaces Based on Enzyme Carbonic Anhydrase and Metal–Organic Framework for Carbon Dioxide Reduction

Active Nanointerfaces Based on Enzyme Carbonic Anhydrase and Metal–Organic Framework for Carbon Dioxide Reduction

Study on MCFC-integrated GSCC systems with SEGR in parallel or series and CO2 capture

Exergetic Analysis of a Natural Gas Combined-Cycle Power Plant with a Molten Carbonate Fuel Cell for Carbon Capture

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