PERFORMANCE OF BENZYLTOLUENE AS PURE HYDROCARBON LIQUID ORGANIC HYDROGEN CARRIER (LOHC) IN STORAGE CYCLES

Rüde T, Preuster P, Wolf M, Wasserscheid P (2022)

Publication Type: Conference contribution

Publication year: 2022

Publisher: International Association for Hydrogen Energy, IAHE

Pages Range: 563-566

Conference Proceedings Title: Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2

Event location: Istanbul, TUR

ISBN: 9786250008430

Abstract

This study presents benzyltoluene/perhydro benzyltoluene (H0-BT/H12-BT) as favourable liquid organic hydrogen carrier (LOHC) system for potential technical applications. LOHCs can enable safe and efficient hydrogen logistics using the existent fuel infrastructure. Compared with the well-established LOHC systems toluene/methylcyclohexane and dibenzyltoluene/perhydro dibenzyltoluene (H0-DBT/H18-DBT), the H0-BT/H12-BT system combines a similarly high volumetric storage density and excellent robustness in hydrogenation/dehydrogenation cycles with low viscosity for easy handling in colder operation conditions. Herein, we report repeated hydrogenation and dehydrogenation cycles of technical grade LOHCs in semi continuous operation at 290 °C with a commercial platinum on alumina catalyst (Pt/Al2O3). Reaction rates for both, hydrogen uptake and release, are generally found to be higher for H0-BT/H12-BT when compared to the DBT-based LOHC system at identical reaction conditions. By-product formation is low during cycling of the H0-BT/H12-BT system and only small amounts of the dehydrocyclisation products, such as methylfluorene species, are formed that can themselves act as hydrogen carrier.

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How to cite

APA:

Rüde, T., Preuster, P., Wolf, M., & Wasserscheid, P. (2022). PERFORMANCE OF BENZYLTOLUENE AS PURE HYDROCARBON LIQUID ORGANIC HYDROGEN CARRIER (LOHC) IN STORAGE CYCLES. In Ibrahim Dincer, Can Ozgur Colpan, Mehmet Akif Ezan (Eds.), Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2 (pp. 563-566). Istanbul, TUR: International Association for Hydrogen Energy, IAHE.

MLA:

Rüde, Timo, et al. "PERFORMANCE OF BENZYLTOLUENE AS PURE HYDROCARBON LIQUID ORGANIC HYDROGEN CARRIER (LOHC) IN STORAGE CYCLES." Proceedings of the 23rd World Hydrogen Energy Conference: Bridging Continents by H2, WHEC 2022, Istanbul, TUR Ed. Ibrahim Dincer, Can Ozgur Colpan, Mehmet Akif Ezan, International Association for Hydrogen Energy, IAHE, 2022. 563-566.

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