Dual fluidized bed based technologies for carbon dioxide reduction — example hot metal production

Stefan Müller, Lara Theiss, Benjamin Fleiß, Martin Hammerschmid, Josef Fuchs, Stefan Penthor, Daniel Rosenfeld, Markus Lehner, Hermann Hofbauer

Publikation: Beitrag in FachzeitschriftArtikelForschungBegutachtung

3 Zitate (Scopus)


The present work describes the results achieved during a study aiming at the full replacement of the natural gas demand of an integrated hot metal production. This work implements a novel approach using a biomass gasification plant combined with an electrolysis unit to substitute the present natural gas demand of an integrated hot metal production. Therefore, a simulation platform, including mathematical models for all relevant process units, enabling the calculation of all relevant mass and energy balances was created. As a result, the calculations show that a natural gas demand of about 385 MW can be replaced and an additional 100 MW hydrogen-rich reducing gas can be produced by the use of 132 MW of biomass together with 571 MW electricity produced from renewable energy. The results achieved indicate that a full replacement of the natural gas demand would be possible from a technological point of view. At the same time, the technological readiness level of available electrolysis units shows that a production at such a large scale has not been demonstrated yet.

FachzeitschriftBiomass conversion and biorefinery
PublikationsstatusVeröffentlicht - 3 Okt. 2020


  • Carbon dioxide reduction . Oxyfuel combustion . Sorption enhanced reforming . Biomass gasification

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