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

Michael Bampaou, Kyriakos Panopoulos, Panos Seferlis, Spyridon Voutetakis, Ismael Matino, Alice Petrucciani, Antonella Zaccara, Valentina Colla, Stefano Dettori, Teresa Annunziata Branca and Vincenzo Iannino
Additional contact information
Michael Bampaou: Centre for Research and Technology Hellas (CERTH), Chemical Process and Energy Resources Institute (CPERI), 57001 Thessaloniki, Greece
Kyriakos Panopoulos: Department of Mechanical Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
Panos Seferlis: Centre for Research and Technology Hellas (CERTH), Chemical Process and Energy Resources Institute (CPERI), 57001 Thessaloniki, Greece
Spyridon Voutetakis: Centre for Research and Technology Hellas (CERTH), Chemical Process and Energy Resources Institute (CPERI), 57001 Thessaloniki, Greece
Ismael Matino: TeCIP Institute, Scuola Superiore Sant’Anna, Via Moruzzi 1, 56124 Pisa, Italy
Alice Petrucciani: TeCIP Institute, Scuola Superiore Sant’Anna, Via Moruzzi 1, 56124 Pisa, Italy
Antonella Zaccara: TeCIP Institute, Scuola Superiore Sant’Anna, Via Moruzzi 1, 56124 Pisa, Italy
Valentina Colla: TeCIP Institute, Scuola Superiore Sant’Anna, Via Moruzzi 1, 56124 Pisa, Italy
Stefano Dettori: TeCIP Institute, Scuola Superiore Sant’Anna, Via Moruzzi 1, 56124 Pisa, Italy
Teresa Annunziata Branca: TeCIP Institute, Scuola Superiore Sant’Anna, Via Moruzzi 1, 56124 Pisa, Italy
Vincenzo Iannino: TeCIP Institute, Scuola Superiore Sant’Anna, Via Moruzzi 1, 56124 Pisa, Italy

Energies, 2021, vol. 14, issue 10, 1-24

Abstract: 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 AspenPlus TM 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.

Keywords: blast furnace gas; coke oven gas; basic oxygen furnace gas; methanation; methanol synthesis; aspen plus; gas cleaning; hydrogen; steelworks sustainability (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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