Selective Sulfur Dioxide Absorption from Simulated Flue Gas Using Various Aqueous Alkali Solutions in a Polypropylene Hollow Fiber Membrane Contactor: Removal Efficiency and Use of Sulfur Dioxide
| Autor: | Kwanghwi Kim, Jae-Hyuk Kim, Dongwoan Kang, Hyun Sic Park, Jo Hong Kang, Hojun Song |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Ammonium sulfate
Flue gas Materials science ammonium sulfate ((NH₄)₂SO₄) Health Toxicology and Mutagenesis lcsh:Medicine 02 engineering and technology Alkalies Polypropylenes Article Physical Phenomena chemistry.chemical_compound 020401 chemical engineering Specific surface area Sulfur Dioxide hollow fiber membrane contactor (HFMC) 0204 chemical engineering Sulfur dioxide Aqueous solution polypropylene (PP) lcsh:R Public Health Environmental and Occupational Health desulfurization once-through mode Carbon Dioxide 021001 nanoscience & nanotechnology Sulfur oxide Flue-gas desulfurization sulfur oxide (SO2) chemistry Chemical engineering Hollow fiber membrane 0210 nano-technology ammonium sulfate ((NH4)2SO4) |
| Zdroj: | International Journal of Environmental Research and Public Health Volume 18 Issue 2 International Journal of Environmental Research and Public Health, Vol 18, Iss 597, p 597 (2021) |
| ISSN: | 1660-4601 |
| DOI: | 10.3390/ijerph18020597 |
| Popis: | Hollow fiber membrane contactors (HFMCs) provide a large specific surface area. Thus, their significantly reduced volume provides an advantage compared to the conventional gas&ndash liquid contactor. In this study, the selective removal efficiency of flue gas, in which sulfur oxide (SO2) and carbon dioxide (CO2) coexist, was measured using a polypropylene (PP) HFMC with such advantages. To increase the selective removal efficiency of SO2, experiments were conducted using various alkaline absorbents. As a result, with 0.05 M ammonia solution, the removal efficiency of 95% or more was exhibited with continuous operation for 100 h or more. We confirmed that the absorbent saturated by the once-through mode was aqueous ammonium sulfate ((NH₄)₂SO₄) solution and could be used as a fertilizer without additional processing. |
| Databáze: | OpenAIRE |
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