固体氧化物半封闭CO2循环的技术经济分析及与其他CO2捕集发电循环的比较

IF 1.4 4区 工程技术 Q3 ENGINEERING, MECHANICAL Journal of Engineering for Gas Turbines and Power-transactions of The Asme Pub Date : 2023-10-13 DOI:10.1115/1.4063740
Matteo Martinelli, Roberto Scaccabarozzi, Manuele Gatti, Stefano Campanari, Emanuele Martelli
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引用次数: 0

摘要

摘要:本文介绍了固体氧化物半封闭CO2循环(SOS-CO2)的技术经济分析,固体氧化物半封闭循环与固体氧化物燃料电池(SOFC)混合使用,最近由米兰理工大学开发,用于天然气发电,二氧化碳排放量接近零。该循环能够实现75.7%的净电力效率,捕获99%以上的二氧化碳。所有循环组件的设计和尺寸都是为了评估性能和资本成本。将性能和经济关键性能指标与两种二氧化碳捕集发电基准技术进行比较:阿拉姆循环和配备胺的燃烧后捕集联合循环。此外,还对天然气和SOFC堆的预测成本进行了敏感性分析。结果表明,SOS-CO2循环的具体总资本需求(2.52k€/kWel)明显高于Allam循环(1.93 k€/kWel)和燃烧后捕集联合循环(1.98 k€/kWel)。另一方面,SOS-CO2循环得益于其更高的效率(73.3%,而Allam循环为53.9%,联合循环为52.8%),这使得该循环对燃料成本和二氧化碳税不太敏感。就电力成本而言,当天然气价格高于8欧元/吉焦时,SOS-CO2循环技术是最佳技术,而在价格较低的情况下,Allam循环似乎是首选。
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Techno-Economic Analysis of the Solid Oxide Semi-Closed CO2 Cycle and Comparison with Other Power Generation Cycles with CO2 Capture
Abstract This work presents the techno-economic analysis of the Solid oxide semi-closed CO2 cycle (SOS-CO2), a hybrid semiclosed cycle with solid oxide fuel cells (SOFC) recently developed by Politecnico di Milano for power generation from natural gas with near-zero CO2 emissions. The cycle is able to achieve an outstanding net electric efficiency of 75.7%, capturing more than 99% of the generated CO2. All the cycles components have been designed and sized with the aim of assessing performance and capital cost. Performance and economic key performance indicators are compared with those of two benchmark technologies for power generation with CO2 capture: the Allam cycle and a combined cycle equipped with ammines for post-combustion capture. Moreover, a sensitivity analysis is performed on the forecasted cost of natural gas and SOFC stacks. The results indicate that the specific total capital requirement of the SOS-CO2 cycle (2.52k€/kWel) is considerably higher than the Allam cycle (1.93 k€/kWel) and combined cycle with post-combustion capture (1.98 k€/kWel). On the other hand, the SOS-CO2 cycle benefits from its far higher efficiency (73.3% vs. 53.9% of the Allam cycle and 52.8% of the combined cycle) which makes the cycle less sensitive to the fuel cost and CO2 tax. In terms of cost of electricity, the SOS-CO2 cycle results the best technology for natural gas prices above 8 €/GJ, while the Allam cycle appears to be the preferred option at lower prices.
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来源期刊
CiteScore
3.80
自引率
20.00%
发文量
292
审稿时长
2.0 months
期刊介绍: The ASME Journal of Engineering for Gas Turbines and Power publishes archival-quality papers in the areas of gas and steam turbine technology, nuclear engineering, internal combustion engines, and fossil power generation. It covers a broad spectrum of practical topics of interest to industry. Subject areas covered include: thermodynamics; fluid mechanics; heat transfer; and modeling; propulsion and power generation components and systems; combustion, fuels, and emissions; nuclear reactor systems and components; thermal hydraulics; heat exchangers; nuclear fuel technology and waste management; I. C. engines for marine, rail, and power generation; steam and hydro power generation; advanced cycles for fossil energy generation; pollution control and environmental effects.
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