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Sorption-enhanced reforming with limestone from iron production

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Abstract

In this work, the experimental performance of sorption-enhanced reforming using limestone as bed material, which is used in raw iron production, is presented. Steam gasification of solid biomass by sorption-enhanced reforming process (SER) leads to product gas with high hydrogen content and low tar content. The product gas can be used for a wide range of applications. This includes heat and electricity production, synthetic fuels, and other downstream processes. On the basis of dual fluidized bed steam gasification of biomass (dual fluid gasification), a reactive bed material is used to enhance the formation of hydrogen. Blast furnaces in iron production operate on the principle of chemical reduction, whereby carbon monoxide and hydrogen reduce the iron to its elemental form. The present paper summarizes the results of an experimental investigation into SER with limestone usually used as a part of iron production. The illustrated results reflect the operation of sorption-enhanced reforming within an experimental facility at the Vienna University of Technology.

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Abbreviations

DFB:

Dual fluidized bed

Nm3 :

Cubic meters according to standard conditions for pressure and temperature (0 °C, 1.013 bar)

wt.-%:

Percentage by weight

vol.-%:

Percentage by volume

SER:

Sorption-enhanced reforming

db:

Dry basis

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Acknowledgments

The present work is part of the ERBA project, which is being conducted within the “New Energies 2020” research program funded by the Austrian Climate and Energy Fund and processed by the Austrian Research Promotion Agency (FFG). The work has been accomplished in cooperation with voestalpine Stahl GmbH and voestalpine Stahl Donawitz GmbH. Martina Poppenwimmer, Hugo Stocker, and Thomas Bürgler from voestalpine deserve to be mentioned as well as Hannes Kitzler, Veronika Wilk, and Stefan Kern for their good collaboration and their assistance during the experiment.

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Authors and Affiliations

  1. Institute of Chemical Engineering, Vienna University of Technology, Getreidemarkt 9/166, 1060, Vienna, Austria

    Roland Diem, Stefan Mueller, Michael Fuchs, Johannes C. Schmid & Hermann Hofbauer

Authors
  1. Roland Diem
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  2. Stefan Mueller
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  3. Michael Fuchs
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  4. Johannes C. Schmid
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  5. Hermann Hofbauer
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Correspondence to Roland Diem.

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Diem, R., Mueller, S., Fuchs, M. et al. Sorption-enhanced reforming with limestone from iron production. Biomass Conv. Bioref. 5, 95–102 (2015). https://doi.org/10.1007/s13399-014-0149-z

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  • DOI: https://doi.org/10.1007/s13399-014-0149-z

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