期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 44, 期 4, 页码 2330-2339出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2018.08.087
关键词
Steam reforming of methanol; Membrane reactor; Process simulation; Techno-economic analysis (TEA)
资金
- National Research Foundation [2015R1A2A1A10056156, 2017R1A4A1015533, 2014M1A8A1049348, 2015M1A2A2056556, 2018M1A2A2063167]
- Korea Institute of Energy Technology Evaluation and Planning - Korea government [20153010041750]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20153010041750] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2018M1A2A2063167, 2015R1A2A1A10056156] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Process simulation and design as well as economic analysis were carried out to evaluate technical and economic feasibility of steam reforming of methanol in a membrane reactor (MR) for ultra-pure H-2 production. Using a commercial process simulator, Aspen HYSYS (R), comparative studies were conducted to investigate the effect of operating conditions including the H-2 permeance (1 x 10(-5) - 6 x 10(-1) mol m(-2) S-1 Pa-1), a H2O sweep gas flow rate (1-20 kmol h(-1)), and a reaction temperature (448-493 K) in a conventional packed-bed reactor (PBR) and the MR using a previously reported reaction kinetics. Improved performances such as methanol conversions and H-2 yields were observed in the MR compared to the PBR and several design guidelines for the MR were obtained to develop H-2 separation membranes with optimal H-2 permeance and to select a suitable H2O sweep gas flow rate. In addition, economic analysis based on itemized cost estimations was conducted for a small sized H-2 fueling station by calculating a unit H-2 production cost for both the PBR and the MR reflecting a current economic status in Korea. As a result, a cost saving of about 23% was obtained in the MR (7.24 $ kgH(2)(-1)) compared to the PBR (9.37 $ kgH(2)(-1)) confirming the benefit of employing the MR for ultra-pure H-2 production. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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