Desulfurization Performance of MgO Byproducts as a Function of Particle Size
| Autor: | J. Gómez-Manrique, R. del Valle-Zermeño, Josep Maria Chimenos, Joan Formosa |
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| Rok vydání: | 2016 |
| Předmět: |
Economic optimization
Chromatography Chemistry General Chemical Engineering Energy Engineering and Power Technology Sorption Fraction (chemistry) 02 engineering and technology Function (mathematics) 021001 nanoscience & nanotechnology Flue-gas desulfurization Fuel Technology 020401 chemical engineering Chemical engineering Reactivity (chemistry) Particle size 0204 chemical engineering 0210 nano-technology Saturation (chemistry) |
| Zdroj: | Energy & Fuels. 30:2328-2335 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/acs.energyfuels.6b00041 |
| Popis: | The reuse of MgO byproducts as SO2 absorbents in a sustainable closed-loop process follows the guidelines of legislation and economic optimization. The aim of the present study was to enhance the desulfurization performance of an MgO byproduct by sieving to different size fractions and relating them with their reactivity and physical characteristics. The byproduct presented a rather irregular size distribution, with Mg presented as MgO, Mg(OH)2, and MgCO3 and Ca as CaO, Ca(OH)2, and CaSO4. The time of saturation (tS) was used for evaluating the desulfurization performance of each fraction with 100% removal efficiency. Thus, two different conditions for enhancing the desulfurization performance were described. A chemically established condition where the sorption capacity is improved by adding more solids and a second one dependent only on physical parameters. Accordingly, sieving to the finest size fraction could improve the desulfurization capacity close to an optimum value (2.9 kg of solids can totally ... |
| Databáze: | OpenAIRE |
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