000171231 001__ 171231
000171231 005__ 20260515163946.0
000171231 0247_ $$2doi$$a10.1016/j.fuel.2026.139540
000171231 0248_ $$2sideral$$a149318
000171231 037__ $$aART-2027-149318
000171231 041__ $$aeng
000171231 100__ $$0(orcid)0000-0002-9174-9820$$aBailera, Manuel$$uUniversidad de Zaragoza
000171231 245__ $$aLevelized cost of CO2 avoidance of an oxygen blast furnace with top gas recycling, biomass and on-site PV-powered methanation
000171231 260__ $$c2027
000171231 5060_ $$aAccess copy available to the general public$$fUnrestricted
000171231 5203_ $$aThe decarbonization of the steel industry is critical for achieving global climate targets, as the conventional blast furnace-basic oxygen furnace (BF-BOF) route remains the dominant yet carbon-intensive production method. This study evaluates the practical and economic viability of integrating oxygen blast furnace (OBF) technology with top gas recycling (TGR), biomass pyrolysis, and power-to-gas (PtG) methanation. Using the JFE Steel plant in Chiba, Japan, as a case study, the research specifically examines the impact of relying exclusively on on-site rooftop photovoltaic (PV) systems to achieve electrical self-sufficiency for hydrogen production. Results show that while this integrated configuration theoretically offers emission reductions of 65–70% with unlimited renewable energy, the actual reduction is capped at 46.4% due to the 141 MWp capacity constraint of the available rooftop area. This mitigation is driven primarily by the transition to OBF-TGR mode (15.4 percentage points) and permanent carbon storage (29.2 percentage points), whereas the contributions from biomass and synthetic natural gas (SNG) are limited to 1.8 percentage points. Economic analysis indicates a total CAPEX of 1,320 M€, largely attributed to carbon capture and electrolysis infrastructure. However, the system proves commercially viable under current market trends; a green steel premium of 186 €/t or a combination of CO2 tax savings and lower premiums can achieve profitability. The Levelized Cost of CO2 Avoidance (LCCA) is calculated at 126 €/tCO2 when no green premium is applied. Ultimately, OBF-TGR integration represents a robust, financially feasible pathway for partial decarbonization and the certification of net-zero steel batches.
000171231 536__ $$9info:eu-repo/grantAgreement/ES/AEI/RYC2022-038283-I$$9info:eu-repo/grantAgreement/ES/MICIU/PID2023-149968OB-I00
000171231 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000171231 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000171231 700__ $$0(orcid)0000-0003-2484-2504$$aGarcía-Mariaca, Alexander$$uUniversidad de Zaragoza
000171231 7102_ $$15004$$2590$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Máquinas y Motores Térmi.
000171231 773__ $$g427, Part A (2027), 139540 [17 pp.]$$pFuel$$tFuel$$x0016-2361
000171231 8564_ $$s11565279$$uhttps://zaguan.unizar.es/record/171231/files/texto_completo.pdf$$yVersión publicada
000171231 8564_ $$s2550326$$uhttps://zaguan.unizar.es/record/171231/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000171231 909CO $$ooai:zaguan.unizar.es:171231$$particulos$$pdriver
000171231 951__ $$a2026-05-15-14:55:35
000171231 980__ $$aARTICLE