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Vergasung

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Zusammenfassung

Die Vergasung ist als thermochemischer Konversionsprozess sehr komplex. Neben chemischen Reaktionen, die endotherm und exotherm, homogen und heterogen sein können, sind Stoff‐ und Wämetransportvorgäge entscheidend fü den Vergasungsfortschritt. Die heterogenen Reaktionen zur Umsetzung des Kokses spielen dabei eine besondere Rolle, da sie relativ langsam ablaufen. Ausgehend von der Vorstellung grundlegender Vergasungsmodelle und der experimentellen Ermittlung reaktionskinetischer Parameter werden Zusammenhäge zwischen Porenstrukturveränderungen wärend der Koksvergasung und der Reaktionskinetik betrachtet. Ein weiterer behandelter Aspekt ist die experimentelle Untersuchung der Co‐Vergasung von biogenen Energierohstoffen mit Braunkohlen sowie des Vergasungsverhaltens von Zwischenprodukten einer thermochemischen Veredlungskette, in vorliegenden Fall von Koks aus der katalytischen Pyrolyse. Abschließend wird ein fortschrittliches kinetisches Modell zur Beschreibung der Koksumsetzung vorgestellt und Möglichkeiten zur Kopplung dieses Modells mit CFD-Anwendungen präsentiert. Mittels numerischen Untersuchungen wird der Einfluss von Wärme‐ und Stofftransportprozessen in der Grenzschicht und den Partikelporen bzw. die Wechselwirkungen zwischen Gasströmung und reaktivem Partikel analysiert.

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Notes

  1. 1.

    1 Der Fehler bezüglich der Reaktionsgeschwindigkeit r‘‘(U=0,5) beträgt ± 1,57E-04 1/s

  2. 2.

    2 Der Fehler bezüglich dem Reaktivitätsindex RS0,5 beträgt ± 0,18 1/h (Die aufgeführten Fehler wurden anhand von 10 Wiederholungsmessungen in der METTLER-TGA ermittelt)

  3. 3.

    3 Für die folgenden Betrachtungen werden für die Standard- bzw. Vergleichsprobe A Mittelwerte aus den Proben A.1 und A.2 (WDH) verwendet

  4. 4.

    4 Das Verhältnis zwischen SiO2 und Al2O3 wird allgemein als Modul bezeichnet [47]

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Authors and Affiliations

  1. Institut für Energieverfahrenstechnik und Chemieingenieurwesen, Professur Energieverfahrenstechnik und thermische Rückstandsbehandlung, TU Bergakademie Freiberg, Fuchsmühlenweg 9, 09599, Freiberg, Deutschland

    Sascha Rußig

  2. Institut für Energieverfahrenstechnik und Chemieingenieurwesen, Professur Energieverfahrenstechnik und thermische Rückstandsbehandlung, TU Bergakademie Freiberg, Fuchsmühlenweg 9, 09599, Freiberg, Deutschland

    Ziad Abosteif

  3. Institut für Energieverfahrenstechnik und Chemieingenieurwesen, Professur Energieverfahrenstechnik und thermische Rückstandsbehandlung, TU Bergakademie Freiberg, Fuchsmühlenweg 9, 09599, Freiberg, Deutschland

    Evgeniia Komarova

  4. Institut für Energieverfahrenstechnik und Chemieingenieurwesen, Professur Energieverfahrenstechnik und thermische Rückstandsbehandlung, TU Bergakademie Freiberg, Fuchsmühlenweg 9, 09599, Freiberg, Deutschland

    Stefan Guhl

  5. Institut für Energieverfahrenstechnik und Chemieingenieurwesen, Professur Energieverfahrenstechnik und thermische Rückstandsbehandlung, TU Bergakademie Freiberg, Fuchsmühlenweg 9, 09599, Freiberg, Deutschland

    Kevin Günther

  6. Institut für Energieverfahrenstechnik und Chemieingenieurwesen, Professur Energieverfahrenstechnik und thermische Rückstandsbehandlung, TU Bergakademie Freiberg, Fuchsmühlenweg 9, 09599, Freiberg, Deutschland

    Felix Küster

  7. Institut für Energieverfahrenstechnik und Chemieingenieurwesen, Professur Energieverfahrenstechnik und thermische Rückstandsbehandlung, TU Bergakademie Freiberg, Fuchsmühlenweg 9, 09599, Freiberg, Deutschland

    Christiane Rost

  8. Institut für Energieverfahrenstechnik und Chemieingenieurwesen, Professur Energieverfahrenstechnik und thermische Rückstandsbehandlung, TU Bergakademie Freiberg, Fuchsmühlenweg 9, 09599, Freiberg, Deutschland

    Denise Zabelt

  9. Institut für Energieverfahrenstechnik und Chemieingenieurwesen, Professur Energieverfahrenstechnik und thermische Rückstandsbehandlung, TU Bergakademie Freiberg, Fuchsmühlenweg 9, 09599, Freiberg, Deutschland

    Jörn Appelt

  10. Institut für Energieverfahrenstechnik und Chemieingenieurwesen, Professur Numerische Thermofluiddynamik, TU Bergakademie Freiberg, Fuchsmühlenweg 9, 09599, Freiberg, Deutschland

    Klaus Hildebrandt

  11. Institut für Energieverfahrenstechnik und Chemieingenieurwesen, Professur Numerische Thermofluiddynamik, TU Bergakademie Freiberg, Fuchsmühlenweg 9, 09599, Freiberg, Deutschland

    Michele Vascellari

  12. Institut für Energieverfahrenstechnik und Chemieingenieurwesen, Professur Numerische Thermofluiddynamik, TU Bergakademie Freiberg, Fuchsmühlenweg 9, 09599, Freiberg, Deutschland

    Christian Hasse

  13. Institut für Energieverfahrenstechnik und Chemieingenieurwesen, Professur Energieverfahrenstechnik und thermische Rückstandsbehandlung, TU Bergakademie Freiberg, Fuchsmühlenweg 9, 09599, Freiberg, Deutschland

    Matthias Kestel

  14. Department of Chemical and Materials Engineering, University of Alberta, 12-261 Donadeo Innovation Centre for Engineering, 9211-116 St, T6G 1H9, NW Edmonton, AB, Canada

    Petr A. Nikrityuk

  15. Institut für Energieverfahrenstechnik und Chemieingenieurwesen, Professur Energieverfahrenstechnik und thermische Rückstandsbehandlung, TU Bergakademie Freiberg, Fuchsmühlenweg 9, 09599, Freiberg, Deutschland

    Andreas Richter

  16. Institut für Energieverfahrenstechnik und Chemieingenieurwesen, Professur Energieverfahrenstechnik und thermische Rückstandsbehandlung, TU Bergakademie Freiberg, Fuchsmühlenweg 9, 09599, Freiberg, Deutschland

    Bernd Meyer

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  1. Sascha Rußig
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  2. Ziad Abosteif
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  3. Evgeniia Komarova
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  4. Stefan Guhl
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  5. Kevin Günther
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  6. Felix Küster
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  7. Christiane Rost
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  8. Denise Zabelt
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  9. Jörn Appelt
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  10. Klaus Hildebrandt
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  11. Michele Vascellari
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  12. Christian Hasse
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  13. Matthias Kestel
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  14. Petr A. Nikrityuk
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  15. Andreas Richter
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  16. Bernd Meyer
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Corresponding authors

Correspondence to Christian Hasse or Andreas Richter .

Editor information

Editors and Affiliations

  1. Inst. für Energieverfahrenstechnik und Chemieingenieurwesen, TU Bergakademie Freiberg, Freiberg, Germany

    Steffen Krzack

  2. Inst. für Energieverfahrenstechnik und Chemieingenieurwesen, TU Bergakademie Freiberg, Freiberg, Germany

    Heiner Gutte

  3. Inst. für Energieverfahrenstechnik und Chemieingenieurwesen, TU Bergakademie Freiberg, Freiberg, Germany

    Bernd Meyer

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Rußig, S. et al. (2018). Vergasung. In: Krzack, S., Gutte, H., Meyer, B. (eds) Stoffliche Nutzung von Braunkohle. Springer Vieweg, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-46251-5_20

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  • DOI: https://doi.org/10.1007/978-3-662-46251-5_20

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