125764 20241125101133.0 doi 10.1016/j.jclepro.2023.137001 sideral 133305 ART-2023-133305 eng Perpiñán, Jorge Universidad de Zaragoza (orcid)0000-0002-7743-0426 High oxygen and SNG injection in blast furnace ironmaking with Power to Gas integration and CO2 recycling 2023 Access copy available to the general public Unrestricted In the last years, reduction of CO2 emissions from the steel industry has been of great importance. Carbon capture, oxygen blast furnaces and top gas recycling technologies, among others, have been deeply studied as low carbon solutions. In this paper, a novel integration of carbon capture and power to gas technologies in the steelmaking industry is presented. Green hydrogen via proton exchange membrane (PEM) electrolysis and CO2 via methyldiethanolamine (MDEA) scrubbing from the blast furnace gas (BFG) are used to produce synthetic natural gas in an isothermal fixed bed methanation plant. The latter gas is injected into the blast furnace, closing a carbon loop and reducing coal consumption. The oxygen by-produced in the electrolyser covers the entire oxygen demand of the steelmaking plant and avoids the need for an air separation unit (ASU). The novelty of this work relies on the variation of the oxygen enrichment and its temperature in the hot blast, and how it influences the power to gas integration concept. This power to gas integration is compared with a conventional BF-BOF plant from a technical, economic, energy and environmental point of view. Both plant process configurations were implemented in Aspen Plus simulations, assessing the fossil fuel demand, energy penalty, cost and CO2 emissions. Emission reduction up to 34% can be achieved with power to gas integration, with an energy penalty of 17 MJ/tHM and a cost of 352 €/tCO2. info:eu-repo/grantAgreement/EC/H2020/887077/EU/Decarbonisation of carbon-intensive industries (Iron and Steel Industries) through Power to gas and Oxy-fuel combustion/DISIPO This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 887077-DISIPO info:eu-repo/grantAgreement/EUR/MICINN/TED2021-130000B–I00 info:eu-repo/grantAgreement/ES/UZ/IT16/12 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 9.8 2023 ENGINEERING, ENVIRONMENTAL 9 / 81 = 0.111 2023 Q1 T1 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 13 / 91 = 0.143 2023 Q1 T1 ENVIRONMENTAL SCIENCES 24 / 358 = 0.067 2023 Q1 T1 2.058 2023 Environmental Science (miscellaneous) 2023 Q1 Strategy and Management 2023 Q1 Renewable Energy, Sustainability and the Environment 2023 Q1 Industrial and Manufacturing Engineering 2023 Q1 20.4 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Bailera, Manuel Universidad de Zaragoza (orcid)0000-0002-9174-9820 Peña, Begona Universidad de Zaragoza (orcid)0000-0001-9967-5806 Romeo, Luis M. Universidad de Zaragoza (orcid)0000-0001-7379-6159 Eveloy, Valerie 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 405 (2023), 137001 [12 pp.] J. clean. prod. Journal of Cleaner Production 0959-6526 7000379 http://zaguan.unizar.es/record/125764/files/texto_completo.pdf Versión publicada 2695364 http://zaguan.unizar.es/record/125764/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:125764 articulos driver 2024-11-22-11:59:39 ARTICLE