A study on the dynamic behavior of a sulfur trioxide decomposer for a nuclear hydrogen production
| Autor: | Youngjoon Shin, Jiwoon Chang, Won Jae Lee, Byung Heung Park, Ki-Young Lee, Jihwan Kim, Jonghwa Chang |
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| Rok vydání: | 2008 |
| Předmět: |
Renewable Energy
Sustainability and the Environment Chemistry Energy Engineering and Power Technology Sulfuric acid Condensed Matter Physics Chemical reaction Decomposition Decomposer chemistry.chemical_compound Fuel Technology Chemical engineering Sulfur trioxide Thermochemical cycle Chemical decomposition Hydrogen production Nuclear chemistry |
| Zdroj: | International Journal of Hydrogen Energy. 33:7361-7370 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2008.10.006 |
| Popis: | The sulfur–iodine thermochemical water-splitting cycle (S–I cycle) is one of the most promising technologies for mass H 2 production. The S–I cycle is generally divided into three sections, one of which involves a H 2 SO 4 concentration and decomposition. In the sulfuric acid processing section (Section 2), H 2 SO 4 is decomposed into H 2 O and SO 3 , and then the produced SO 3 is further decomposed into SO 2 and O 2 , which takes place in a H 2 SO 4 decomposer and a SO 3 decomposer, respectively. The SO 3 decomposition requires heat of a high temperature and this suggests a heat-exchanger type reactor. To understand the temperature profiles and chemical reactions through a SO 3 decomposer, a dynamic model was developed by considering the heat and material balances in partial differential forms. A model was used to size the decomposer to a proposed design basis and it was also applied to simulate the responses corresponding to the changes of the operation conditions such as increased or decreased flow rates. |
| Databáze: | OpenAIRE |
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