Techno-economic-environmental assessment of biomass oxy-gasification staged oxy-combustion for negative emission combined heat and power

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dc.contributor.authorKhallaghi, Navid
dc.contributor.authorJeswani, Harish
dc.contributor.authorHanak, Dawid P.
dc.contributor.authorManovic, Vasilije
dc.date.accessioned2021-07-13T12:12:36Z
dc.date.available2021-07-13T12:12:36Z
dc.date.issued2021-06-23
dc.description.abstractClimate change mitigation requires developing low-carbon technologies capable of achieving CO2 emission reductions at the gigatonne scale and affordable cost. Biomass gasification, coupled with carbon capture and storage, offers a direction to atmospheric CO2 removal. To compensate for the issues associate with the high-investment requirement of CO2 removal unit and lower efficiency compared to fossil-based power cycles, this study proposed a conceptual system for combined heat and power, based on biomass oxy-gasification integrated with staged oxy-combustion combined cycle (BOXS-CC). Aspen Plus® is used to develop the process model of the proposed cycle. The results obtained in the techno-economic analysis showed that the net power efficiency of the proposed concept with 50.2 kg/s biomass flowrate was 41.6%, and the heat efficiency was 27.4%, leading to a total efficiency of 69.0%, including CO2 compression. Moreover, the economic assessment of BOXS-CC revealed that it can achieve a levelised cost of electricity of €21.4/MWh, considering the heat and carbon prices of €46.5/MWh and €40/tCO2, respectively. Such economic performance is superior compared to fossil fuel power plants without CO2 capture. The environmental assessment shows that BOX-CC system results in net negative emissions of 766 kg CO2 eq./MWheen_UK
dc.identifier.citationKhallaghi N, Jeswani H, Hanak DP, Manovic V. (2021) Techno-economic-environmental assessment of biomass oxy-gasification staged oxy-combustion for negative emission combined heat and power. Applied Thermal Engineering, Volume 196, September 2021, Article number 117254en_UK
dc.identifier.issn1359-4311
dc.identifier.urihttps://doi.org/10.1016/j.applthermaleng.2021.117254
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/16876
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectGreenhouse gas emissionsen_UK
dc.subjectCombined heat and poweren_UK
dc.subjectTechno-economic analysisen_UK
dc.subjectOxy-combustion cycleen_UK
dc.subjectBiomass gasificationen_UK
dc.titleTechno-economic-environmental assessment of biomass oxy-gasification staged oxy-combustion for negative emission combined heat and poweren_UK
dc.typeArticleen_UK

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