Effects of operating parameters on the pressurized Bunsen reaction for the integrated operation of sulfur–iodine hydrogen production process
| Autor: | Young Ho Kim, Hyun-Kyu Park, Hyo Sub Kim, Chu Sik Park, Ki Kwang Bae |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Renewable Energy
Sustainability and the Environment Chemistry 05 social sciences Inorganic chemistry Side reaction Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Iodine Sulfur law.invention Fuel Technology law Bunsen reaction Bunsen burner Phase (matter) 0502 economics and business 050207 economics Solubility 0210 nano-technology Hydrogen production |
| Zdroj: | International Journal of Hydrogen Energy. 41:15133-15140 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2016.07.070 |
| Popis: | The sulfur–iodine hydrogen production process (SI process) is an efficient thermochemical process. Developing composition data of the Bunsen products that are obtained under pressurized conditions is important for the integrated operation of SI process. We investigated the characteristics of the pressurized Bunsen reaction by varying operating parameters (pressure, temperature, I 2 and H 2 O feed concentrations). An HI x solution that consisted of HI, I 2 and H 2 O was used as the reactant. When the pressure increased, the extent of Bunsen reaction was enhanced by increasing the solubility of SO 2 gas in the HI x solution. In addition, the amount of H 2 SO 4 phase solution increased due to the decrease in the amount of HI x complex, which has a high degree of hydration. Increasing temperature enhanced the separation performance of the Bunsen products, while the extent of Bunsen reaction decreased. When I 2 feed concentration increased, the occurrence of side reaction was inhibited, but the separation performance of the Bunsen products decreased. Although increasing H 2 O feed concentration was favorable for the pressurized Bunsen reaction, the H 2 O feed concentration should be controlled by considering the solubility of I 2 in the HI x solution. |
| Databáze: | OpenAIRE |
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