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Article

Integration of Renewable Hydrogen Production in Steelworks Off-Gases for the Synthesis of Methanol and Methane

1
Centre for Research and Technology Hellas (CERTH), Chemical Process and Energy Resources Institute (CPERI), 57001 Thessaloniki, Greece
2
Department of Mechanical Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
3
TeCIP Institute, Scuola Superiore Sant’Anna, Via Moruzzi 1, 56124 Pisa, Italy
*
Authors to whom correspondence should be addressed.
Academic Editors: Markus Lehner and Dmitri A. Bulushev
Energies 2021, 14(10), 2904; https://doi.org/10.3390/en14102904
Received: 5 March 2021 / Revised: 23 April 2021 / Accepted: 14 May 2021 / Published: 18 May 2021
(This article belongs to the Special Issue Catalytic Processes for CO2 Utilization)
The steel industry is among the highest carbon-emitting industrial sectors. Since the steel production process is already exhaustively optimized, alternative routes are sought in order to increase carbon efficiency and reduce these emissions. During steel production, three main carbon-containing off-gases are generated: blast furnace gas, coke oven gas and basic oxygen furnace gas. In the present work, the addition of renewable hydrogen by electrolysis to those steelworks off-gases is studied for the production of methane and methanol. Different case scenarios are investigated using AspenPlusTM flowsheet simulations, which differ on the end-product, the feedstock flowrates and on the production of power. Each case study is evaluated in terms of hydrogen and electrolysis requirements, carbon conversion, hydrogen consumption, and product yields. The findings of this study showed that the electrolysis requirements surpass the energy content of the steelwork’s feedstock. However, for the methanol synthesis cases, substantial improvements can be achieved if recycling a significant amount of the residual hydrogen. View Full-Text
Keywords: blast furnace gas; coke oven gas; basic oxygen furnace gas; methanation; methanol synthesis; aspen plus; gas cleaning; hydrogen; steelworks sustainability blast furnace gas; coke oven gas; basic oxygen furnace gas; methanation; methanol synthesis; aspen plus; gas cleaning; hydrogen; steelworks sustainability
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MDPI and ACS Style

Bampaou, M.; Panopoulos, K.; Seferlis, P.; Voutetakis, S.; Matino, I.; Petrucciani, A.; Zaccara, A.; Colla, V.; Dettori, S.; Annunziata Branca, T.; Iannino, V. Integration of Renewable Hydrogen Production in Steelworks Off-Gases for the Synthesis of Methanol and Methane. Energies 2021, 14, 2904. https://doi.org/10.3390/en14102904

AMA Style

Bampaou M, Panopoulos K, Seferlis P, Voutetakis S, Matino I, Petrucciani A, Zaccara A, Colla V, Dettori S, Annunziata Branca T, Iannino V. Integration of Renewable Hydrogen Production in Steelworks Off-Gases for the Synthesis of Methanol and Methane. Energies. 2021; 14(10):2904. https://doi.org/10.3390/en14102904

Chicago/Turabian Style

Bampaou, Michael, Kyriakos Panopoulos, Panos Seferlis, Spyridon Voutetakis, Ismael Matino, Alice Petrucciani, Antonella Zaccara, Valentina Colla, Stefano Dettori, Teresa Annunziata Branca, and Vincenzo Iannino. 2021. "Integration of Renewable Hydrogen Production in Steelworks Off-Gases for the Synthesis of Methanol and Methane" Energies 14, no. 10: 2904. https://doi.org/10.3390/en14102904

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