Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7712632 | International Journal of Hydrogen Energy | 2016 | 8 Pages |
Abstract
Liquid Organic Hydrogen Carrier (LOHC) systems offer a very attractive way for storing and distributing hydrogen from electrolysis using excess energies from solar or wind power plants. In this contribution, an alternative, high-value utilization of such hydrogen is proposed namely its use in steady-state chemical hydrogenation processes. We here demonstrate that the hydrogen-rich form of the LOHC system dibenzyltoluene/perhydro-dibenzyltoluene can be directly applied as sole source of hydrogen in the hydrogenation of toluene, a model reaction for large-scale technical hydrogenations. Equilibrium experiments using perhydro-dibenzyltoluene and toluene in a ratio of 1:3 (thus in a stoichiometric ratio with respect to H2) yield conversions above 60%, corresponding to an equilibrium constant significantly higher than 1 under the applied conditions (270 °C).
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Denise Geburtig, Patrick Preuster, Andreas Bösmann, Karsten Müller, Peter Wasserscheid,