Technical and economic assessment of iron and steelmaking decarbonization via power to gas and amine scrubbing

Perpiñán, Jorge (Universidad de Zaragoza) ; Bailera, Manuel (Universidad de Zaragoza) ; Peña, Begoña (Universidad de Zaragoza) ; Romeo, Luis M. (Universidad de Zaragoza) ; Eveloy, Valerie

Resumen: The iron and steel industry is one of the most energy-intensive industries, emitting 5% of the total anthropogenic carbon dioxide (CO2). The control of CO2 emissions has become increasingly stringent in the European Union (EU), resulting in EU allowance above 90 €/tCO2. Carbon capture will be required to achieve CO2 emissions control, and carbon utilization via power-to-gas could significantly increase interest in carbon capture in the iron and steel sector. This paper presents a new concept that combines amine scrubbing with power-to-gas to reduce emissions in blast furnace-basic oxygen furnace steelmaking plants. Synthetic natural gas (SNG) is produced using green hydrogen from water electrolysis and CO2 from steelmaking. The synthetic natural gas is later used as a reducing agent in the blast furnace, constantly recycling carbon in a closed loop and avoiding geological storage. The oxygen by-produced via electrolysis eliminates the necessity of an air separation unit. By applying these innovations to steelmaking, a reduction in CO2 emissions of 9.4% is obtained with an energy penalty of 16.2 MJ/kgCO2, and economic costs of 52 €/tHM or 283 €/tCO2. A sensitivity analysis with respect to electricity and the CO2 allowances prices is also performed.

Idioma: Inglés

DOI: 10.1016/j.energy.2023.127616

Año: 2023

Publicado en: Energy 276 (2023), 127616 [15 pp.]
ISSN: 0360-5442

Factor impacto JCR: 9.0 (2023)

Categ. JCR: THERMODYNAMICS rank: 3 / 78 = 0.038 (2023) - Q1 - T1
Categ. JCR: ENERGY & FUELS rank: 24 / 171 = 0.14 (2023) - Q1 - T1

Factor impacto CITESCORE: 15.3 - Pollution (Q1) - Renewable Energy, Sustainability and the Environment (Q1) - Modeling and Simulation (Q1) - Management, Monitoring, Policy and Law (Q1) - Civil and Structural Engineering (Q1) - Industrial and Manufacturing Engineering (Q1) - Energy (all) (Q1) - Electrical and Electronic Engineering (Q1) - Mechanical Engineering (Q1) - Energy Engineering and Power Technology (Q1) - Fuel Technology (Q1) - Building and Construction (Q1)

Factor impacto SCIMAGO: 2.11 - Electrical and Electronic Engineering (Q1) - Energy (miscellaneous) (Q1) - Energy Engineering and Power Technology (Q1) - Building and Construction (Q1) - Civil and Structural Engineering (Q1) - Renewable Energy, Sustainability and the Environment (Q1) - Industrial and Manufacturing Engineering (Q1) - Management, Monitoring, Policy and Law (Q1) - Mechanical Engineering (Q1) - Modeling and Simulation (Q1) - Pollution (Q1) - Fuel Technology (Q1)

Financiación: 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
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2021-126164OB-I00/AEI/10.13039/501100011033
Financiación: info:eu-repo/grantAgreement/ES/UZ/UZ2020-TEC-06

Tipo y forma: Article (Published version)

Área (Departamento): Área Máquinas y Motores Térmi. (Dpto. Ingeniería Mecánica)