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Issue 2, 2015
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Efficient hydrogen release from perhydro-N-ethylcarbazole using catalyst-coated metallic structures produced by selective electron beam melting

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Abstract

A particularly suitable reactor concept for the continuous dehydrogenation of perhydro-N-ethylcarbazole in the context of hydrogen and energy storage applications is described. The concept addresses the fact that dehydrogenation is a highly endothermic gas evolution reaction. Thus, for efficient dehydrogenation a significant amount of reaction heat has to be provided to a reactor that is essentially full of gas. This particular challenge is addressed in our study by the use of a catalyst-coated (Pt on alumina), structured metal reactor obtained by selective electron beam melting. The so-obtained reactor was tested both as a single tube set-up and as a Hydrogen Release Unit (HRU) with ten parallel reactors. In stationary operation, the HRU realized a hydrogen release capacity of 1.75 kWtherm (960 Wel in a subsequent fuel cell) with up to 1.12 gH2 min−1 gPt−1 and a power density of 4.32 kWel L−1 of HRU reactor.

Graphical abstract: Efficient hydrogen release from perhydro-N-ethylcarbazole using catalyst-coated metallic structures produced by selective electron beam melting

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Supplementary files

Article information


Submitted
02 Nov 2014
Accepted
15 Dec 2014
First published
15 Dec 2014

Energy Environ. Sci., 2015,8, 641-649
Article type
Paper
Author version available

Efficient hydrogen release from perhydro-N-ethylcarbazole using catalyst-coated metallic structures produced by selective electron beam melting

W. Peters, M. Eypasch, T. Frank, J. Schwerdtfeger, C. Körner, A. Bösmann and P. Wasserscheid, Energy Environ. Sci., 2015, 8, 641
DOI: 10.1039/C4EE03461A

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