Title: Liquid Organic Hydrogen Carrier (LOHC) – Assessment based on chemical and economic properties
Language: English
Authors: Niermann, Matthias 
Beckendorff, Alexander 
Kaltschmitt, Martin 
Bonhoff, Klaus 
Issue Date: 8-Mar-2019
Source: International Journal of Hydrogen Energy 13 (44): 6631-6654 (2019-03-08)
Journal or Series Name: International journal of hydrogen energy 
Abstract (english): Hydrogen can be transported via long distances based on Liquid Organic Hydrogen Carriers (LOHC). Such a transport is realized based on a two-step cycle: (1) loading/storage of hydrogen (hydrogenation) into the LOHC molecule and (2) unloading/release of hydrogen (de-hydrogenation). During the storage period, hydrogen is covalently bound to the respective LOHC. Since the (optimal) LOHC is liquid at ambient conditions and shows similar properties as crude oil based liquids (e.g. diesel, gasoline), it can easily be handled, transported and stored; thus a stepwise implementation using the existing crude oil based infrastructure would be possible. Against this background this paper reviews the current knowledge in hydrogenation and de-hydrogenation of various LOHC. Therefore, a variety of LOHC is evaluated based on their properties and compared to each other. By applying different evaluation criteria representing the requirements of the three different application areas (energy-storage, energy-transport, mobility application), the LOHCs can be assigned to a field they suit best. The analysis shows that the most promising LOHC candidates to date are dibenzyltoluene for energy-transport and energy-storage as well as N-ethylcarbazole for mobility applications. In addition, a use of toluene in the transport sector is also conceivable. Methanol can potentially be applied in all three application fields due to its properties if a compromise between de-hydrogenation temperature and gas flow can be achieved based on further R&D-activities. For future implementation phenazine and formic acid show great potential, but also additional R&D especially regarding catalysis and solvents is necessary. © 2019 Hydrogen Energy Publications LLC
URI: http://hdl.handle.net/11420/2203
ISSN: 0360-3199
Institute: Umwelttechnik und Energiewirtschaft V-9 
Type: (wissenschaftlicher) Artikel
Appears in Collections:Publications without fulltext

Show full item record

Page view(s)

37
Last Week
1
Last month
2
checked on May 19, 2019

Google ScholarTM

Check

Export

Items in TORE are protected by copyright, with all rights reserved, unless otherwise indicated.