2018-Sustainable Industrial Processing Summit
SIPS2018 Volume 3. Fehrmann Intl. Symp. / Molten Salt and Ionic Liquid
| Editors: | F. Kongoli, M. Haumann, P. Wasserscheid, T. Welton, M. Gaune-Escard, A. Angell, A. Riisager |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2018 |
| Pages: | 154 pages |
| ISBN: | 978-1-987820-86-7 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Hydrogen Storage with Liquid Organic Hydrogen Carriers (LOHCs) in Biphasic Molten Salt Systems
Alexander Soegaard1; Anders Riisager2; Peter Wasserscheid3;1DTU CHEMISTRY, Kongens Lyngby, Denmark; 2DTU CHEMISTRY, Kgs. Lyngby, Denmark; 3FRIEDRICH-ALEXANDER-UNIVERSITAT, Erlangen, Germany;
Type of Paper: Regular
Id Paper: 254
Topic: 13
Abstract:
Hydrogen is an attractive energy vector for future renewable energy systems [1]. Using novel Liquid Organic Hydrogen Carrier (LOHC) systems, hydrogen can be chemically bound/released through catalytic hydro-genation/dehydrogenation, and thus be stored and transported efficiently under ambient conditions [2]. This simplifies handling and enables transport and storage using already existing infrastructure for liquid fuels, resulting in reduced investment cost for implementation [3]. However, due to high dehydrogenation enthalpies, reactions are often performed above 300 °C, which possess a challenge for heat integration with state-of-the-art PEM fuels for clean energy production [4].
In this work, reversible catalytic hydrogenation/dehydrogenation of N-functionalized heterocycles are demonstrated as efficient LOHC systems operating as low as 120 °C. Catalytic dehydrogenation with a homogeneous hydrogenation iridium catalyst in biphasic reaction mode using a molten salt as catalyst immobilization phase has been investigated. This approach facilitated easy catalyst separation and required only a small amount of catalyst phase to store large amounts of hydrogen, which is beneficial for future large-scale continuous hydrogen storage and release.
Keywords:
Energy; Environment; Ion; Moltensalt; Sustainability;References:
[1] Schlapbach, L., Züttel, A.,<b>2001</b>, <i>Nature</i>, 414, 353-358.[2] Teichmann, D., Arlt, W., Wasserscheid, P., Freymann, R., <b>2011</b>, <i>Energy Environ. Sci.</i>, 4, 2767.
[3] Preuster, P., Alekseev, A., and Wasserscheid, P., <b>2017</b>, <i>Annu. Rev. Chem. Biomol. Eng.</i>, 8(1), 445-471.
[4] Rosli, R. E., Sulong, A. B., Daud, W. R. W., Zullzifley, M. A., Husaini, T., Rosli, M. I., Majlan, E. H., Haque, M. A., <b>2017</b>, <i>Int. J. Hydrog. Energy</i>, 42(14), 9293-9314.