Purity of hydrogen released from the Liquid Organic Hydrogen Carrier compound perhydro dibenzyltoluene by catalytic dehydrogenation

被引:91
作者
Bulgarin, A. [1 ]
Jorschick, H. [1 ]
Preuster, P. [1 ]
Bosmann, A. [2 ]
Wasserscheid, P. [1 ,2 ]
机构
[1] Helmholtz Inst Erlangen Nurnberg Renewable Energi, Forschungszentrum Julich, Egerlandstr 3, D-91058 Erlangen, Germany
[2] Friedrich Alexander Univ Erlangen Nurnberg, Lehrstuhl Chem Reakt Tech, Egerlandstr 3, D-91058 Erlangen, Germany
关键词
Hydrogen storage; LOHC systems; Water; Carbon monoxide; Oxygenates; PRESSURE; OILS;
D O I
10.1016/j.ijhydene.2019.10.067
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Y While Liquid Organic Hydrogen Carrier (LOHC) systems offer a very promising way of infrastructure-compatible storage and transport of hydrogen, the hydrogen quality released from charged LOHC compounds by catalytic dehydrogenation has been a surprisingly rarely discussed topic to date. This contribution deals, therefore, with a detailed analysis of the hydrogen purity released from the hydrogen-rich Liquid Organic Hydrogen Carrier compound perhydro dibenzyltoluene (H18-DBT). We demonstrate, that high purity hydrogen (>99.999%) with carbon monoxide levels below 0.2 ppmv can be obtained from the dehydrogenation of H18-DBT if the applied H18-DBT had been carefully pre-dried and pre-purified prior to the dehydrogenation experiment. Indeed, the largest part of relevant impurities to comply with the hydrogen quality standard for fuel cells in road vehicles (ISO 14687-2) was found to originate from water and oxygenate impurities present in the applied, technical LOHC qualities. (C) 2019 Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC.
引用
收藏
页码:712 / 720
页数:9
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