Publication: Enhanced performance of solid oxide electrolysis cells by integration with a partial oxidation reactor: Energy and exergy analyses
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Issued Date
2016
Resource Type
File Type
application/pdf
ISSN
1968904
Other identifier(s)
2-s2.0-84992450886
Rights Holder(s)
มหาวิทยาลัยศรีนครินทรวิโรฒ
Bibliographic Citation
Energy Conversion and Management. Vol 129, (2016), p.189-199
Suggested Citation
Visitdumrongkul N., Tippawan P., Authayanun S., Assabumrungrat S., Arpornwichanop A. Enhanced performance of solid oxide electrolysis cells by integration with a partial oxidation reactor: Energy and exergy analyses. Energy Conversion and Management. Vol 129, (2016), p.189-199. doi:10.1016/j.enconman.2016.10.023 Retrieved from: https://hdl.handle.net/20.500.14740/4917
Abstract
Hydrogen production without carbon dioxide emission has received a large amount of attention recently. A solid oxide electrolysis cell (SOEC) can produce pure hydrogen and oxygen via a steam electrolysis reaction that does not emit greenhouse gases. Due to the high operating temperature of SOEC, an external heat source is required for operation, which also helps to improve SOEC performance and reduce operating electricity. The non-catalytic partial oxidation reaction (POX), which is a highly exothermic reaction, can be used as an external heat source and can be integrated with SOEC. Therefore, the aim of this work is to study the effect of operating parameters of non-catalytic POX (i.e., the oxygen to carbon ratio, operating temperature and pressure) on SOEC performance, including exergy analysis of the process. The study indicates that non-catalytic partial oxidation can enhance the hydrogen production rate and efficiency of the system. In terms of exergy analysis, the non-catalytic partial oxidation reactor is demonstrated to be the highest exergy destruction unit due to irreversible chemical reactions taking place, whereas SOEC is a low exergy destruction unit. This result indicates that the partial oxidation reactor should be improved and optimally designed to obtain a high energy and exergy system efficiency. © 2016 Elsevier Ltd
Subject(s)
Carbon dioxide
Catalytic oxidation
Chemical analysis
Electrolysis
Electrolytic cells
Exergy
Global warming
Greenhouse gases
Hydrogen production
Oxidation
Solid oxide fuel cells (SOFC)
Temperature
Carbon dioxide emissions
Energy analysis
Energy and exergy analysis
Exergy Analysis
High operating temperature
Non-catalytic partial oxidation
Partial oxidations
SOEC
Regenerative fuel cells
Catalytic oxidation
Chemical analysis
Electrolysis
Electrolytic cells
Exergy
Global warming
Greenhouse gases
Hydrogen production
Oxidation
Solid oxide fuel cells (SOFC)
Temperature
Carbon dioxide emissions
Energy analysis
Energy and exergy analysis
Exergy Analysis
High operating temperature
Non-catalytic partial oxidation
Partial oxidations
SOEC
Regenerative fuel cells