Hanak, Dawid P.Jenkins, Barrie G.Kruger, TimManovic, Vasilije2017-09-212017-09-212017-09-19Hanak DP, Jenkins B, Kruger T, Manovic V, High-efficiency negative-carbon emission power generation from integrated solid-oxide fuel cell and calciner, Applied Energy, Vol. 205, 1 November 2017, pp. 1189-12010306-2619http://dx.doi.org/10.1016/j.apenergy.2017.08.090http://dspace.lib.cranfield.ac.uk/handle/1826/12527Direct air capture of CO2 has the potential to help meet the ambitious environmental targets established by the Paris Agreement. This study assessed the techno-economic feasibility of a process for simultaneous power generation and CO2 removal from the air using solid sorbents. The process uses a solid-oxide fuel cell to convert the chemical energy of fuel to electricity and high-grade heat, the latter of which can be utilised to calcine a carbonate material that, in turn, can remove CO2 from the air. The proposed process was shown to operate with a net thermal efficiency of 43.7–47.7%LHV and to have the potential to remove 463.5–882.3 gCO2/kWelh, depending on the fresh material used in the calciner. Importantly, the estimated capital cost of the proposed process (1397.9–1740.5 £/kWel,gross) was found to be lower than that for other low-carbon emission power generation systems using fossil fuels. The proposed process was also shown to achieve a levelised cost of electricity of 50 £/MWelh, which is competitive with other low-carbon power generation technologies, for a carbon tax varying between 39.2 and 74.9 £/tCO2. Such figure associated with the levelised cost of CO2 capture from air is lower than for other direct air concepts.enAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Direct air captureSolid-oxide fuel cellPower generationProcess modelling and simulationFeasibility studyTechno-economic analysisArticle