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Scientists of Jülich and Erlangen simplify hydrogen storage

Scientists of Jülich and Erlangen simplify hydrogen storage

Jülich / Erlangen august 29th, 2017 – Scientist of the Forschungszentrum Jülich and the Friedrich-Alexander University of Erlangen (FAU) have developed a method, in which the hydrogen storage becomes much simpler.

Publication: Hydrogen storage using a hot pressure swing reactor, H. Jorschick, P. Preuster, S. Dürr, A. Seidel, K. Müller, A. Bösmann and P. Wasserscheid, Energy & Environmental Science, DOI: 10.1039/c7ee00476a

Hydrogen storage using a hot pressure swing reactor
Our contribution demonstrates that hydrogen storage in stationary Liquid Organic Hydrogen Carrier (LOHC) systems becomes much simpler and significantly more efficient if both, the LOHC hydrogenation and the LOHC dehydrogenation reaction are carried out in the same reactor using the same catalyst. The finding that the typical dehydrogenation catalyst for hydrogen release from perhydro dibenzyltoluene (H18-DBT), Pt on alumina, turns into a highly active and very selective dibenzyltoluene hydrogenation catalyst at temperatures above 220 °C paves the way for our new hydrogen storage concept. Herein, hydrogenation of H0-DBT and dehydrogenation of H18-DBT is carried out at the same elevated temperature between 290 and 310 °C with hydrogen pressure being the only variable for shifting the equilibrium between hydrogen loading and release. We demonstrate that the heat of hydrogenation can be provided at a temperature level suitable for effective dehydrogenation catalysis. Combined with a heat storage device of appropriate capacity or a high pressure steam system, this heat could be used for dehydrogenation.

Hydrogen storageHydrogen storage
Copyright: FZJ

Link to german press release: Forschungszentrum Jülich GmbH

More information: Friedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für chemische Reaktionstechnik

Contact persons:

M. Sc. Holger Jorschick
Forschungszentrum Jülich, Institut für Energie- und Klimaforschung,
Helmholtz-Institut Erlangen-Nürnberg für Erneuerbare Energien (IEK-11)
Tel.: 09131 85-20843
E-Mail: h.jorschick@fz-juelich.de

Dr.-Ing. Patrick Preuster
Friedrich-Alexander-Universität Erlangen-Nürnberg,
Lehrstuhl für chemische Reaktionstechnik
Tel.: 09131 85-67421
E-Mail: patrick.preuster@fau.de

Press office:

Dr. Regine Panknin
Forschungszentrum Jülich, Unternehmenskommunikation
Tel.: 02461 61-9054
E-Mail: r.panknin@fz-juelich.de

Dr. Susanne Spörler
Forschungszentrum Jülich, Institut für Energie- und Klimaforschung,
Helmholtz-Institut Erlangen-Nürnberg für Erneuerbare Energien (IEK-11)
Tel.: 09131 85-20249
E-Mail: s.spoerler@fz-juelich.de

Additional Information