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Utilization of Synthetic Steel Gases in an Additively Manufactured Reactor for Catalytic Methanation

Author

Listed:
  • Alexander Hauser

    (Chair of Energy Process Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Fürther Straße 244f, 90429 Nürnberg, Germany)

  • Alexander Feldner

    (Chair of Energy Process Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Fürther Straße 244f, 90429 Nürnberg, Germany)

  • Peter Treiber

    (Chair of Energy Process Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Fürther Straße 244f, 90429 Nürnberg, Germany)

  • Fabian Grimm

    (Chair of Energy Process Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Fürther Straße 244f, 90429 Nürnberg, Germany)

  • Jürgen Karl

    (Chair of Energy Process Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Fürther Straße 244f, 90429 Nürnberg, Germany)

Abstract

The path to European climate neutrality by 2050 will require comprehensive changes in all areas of life. For large industries such as steelworks, this results in the need for climate-friendly technologies. However, the age structure of existing steelworks makes transitional solutions such as carbon capture, utilization and storage (CCUS) necessary as short-term measures. Hence, a purposeful option is the integration of technical syntheses such as methanation into the overall process. This work summarizes hydrogen-intensified methanation experiments with synthetic steel gases in the novel additively manufactured reactor ‘ADDmeth1’. The studies include steady-state operating points at various reactor loads. Blast furnace gas (BFG), basic oxygen furnace gas (BOFG) and three mixtures of these two gases serve as carbon sources. The methanation achieved methane yields of 93.5% for BFG and 95.0% for BOFG in the one-stage once-through setup. The results suggest a kinetic limitation in the case of BFG methanation, while an equilibrium limitation is likely for BOFG. There is a smooth transition in all respects between the two extreme cases. The reaction channel inlet temperature ϑ i n showed a large influence on the reactor ignition behavior. By falling below the threshold value, a blow-off occurred during experimental operation. By means of a simulation model, practical operating maps were created which characterize permissible operating ranges for ϑ i n as a function of the gas composition and the reactor load.

Suggested Citation

  • Alexander Hauser & Alexander Feldner & Peter Treiber & Fabian Grimm & Jürgen Karl, 2023. "Utilization of Synthetic Steel Gases in an Additively Manufactured Reactor for Catalytic Methanation," Sustainability, MDPI, vol. 15(9), pages 1-24, May.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:9:p:7652-:d:1140857
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    References listed on IDEAS

    as
    1. Neubert, Michael & Hauser, Alexander & Pourhossein, Babak & Dillig, Marius & Karl, Juergen, 2018. "Experimental evaluation of a heat pipe cooled structured reactor as part of a two-stage catalytic methanation process in power-to-gas applications," Applied Energy, Elsevier, vol. 229(C), pages 289-298.
    2. Michael Bampaou & Kyriakos Panopoulos & Panos Seferlis & Amaia Sasiain & Stephane Haag & Philipp Wolf-Zoellner & Markus Lehner & Leokadia Rog & Przemyslaw Rompalski & Sebastian Kolb & Nina Kieberger &, 2022. "Economic Evaluation of Renewable Hydrogen Integration into Steelworks for the Production of Methanol and Methane," Energies, MDPI, vol. 15(13), pages 1-26, June.
    3. Philipp Wolf-Zoellner & Ana Roza Medved & Markus Lehner & Nina Kieberger & Katharina Rechberger, 2021. "In Situ Catalytic Methanation of Real Steelworks Gases," Energies, MDPI, vol. 14(23), pages 1-22, December.
    4. Michael Bampaou & Kyriakos Panopoulos & Panos Seferlis & Spyridon Voutetakis & Ismael Matino & Alice Petrucciani & Antonella Zaccara & Valentina Colla & Stefano Dettori & Teresa Annunziata Branca & Vi, 2021. "Integration of Renewable Hydrogen Production in Steelworks Off-Gases for the Synthesis of Methanol and Methane," Energies, MDPI, vol. 14(10), pages 1-24, May.
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