Thermodynamic efficiencies of hydrogen storage processes using carbazole-based compounds

Title
Thermodynamic efficiencies of hydrogen storage processes using carbazole-based compounds
Authors
윤창원최인영신병수곽상규강경수강정원
Keywords
Hydrogen storage; 수소저장; Hydrogen production; 수소생산; Carbazole; 카바졸
Issue Date
2016-06
Publisher
International journal of hydrogen energy
Citation
VOL 41, NO 22-9373
Abstract
Carbazole-based compounds are promising candidates for hydrogen storage materials, and recent research has focused on finding components with higher hydrogen storage capacity and desirable physical properties. In this paper, thermodynamic efficiencies of hydrogenation and dehydrogenation reactions were analyzed assuming an idealized process. The physical properties and thermodynamic efficiencies of three carbazole-based compounds (n-ethylcarbazole, n-propylcarbazole, n-acetylcarbazole) were investigated for use as liquid organic hydrogen carriers (LOHCs). Unavailable physical and thermodynamic properties were estimated using molecular modeling or group-contribution methods. Process simulations were performed for hydrogen storage and release processes using a commercial simulation package to evaluate the thermodynamic efficiencies of three candidate molecules. Even though there might be additional loss of exergy upon practical implementation of the whole process, the framework developed in this study can be useful for screening candidate LOHC molecules. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
URI
http://pubs.kist.re.kr/handle/123456789/64681
ISSN
0360-3199
Appears in Collections:
KIST Publication > Article
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