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Article

Modeling of Limestone Dissolution for Flue Gas Desulfurization with Novel Implications

1
Faculty of Science and Engineering, Energy Technology, Åbo Akademi University, 20500 Vaasa, Finland
2
Instituto de Tecnología de Alimentos y Procesos Químicos (ITAPROQ), CONICET-Universidad de Buenos Aires, Buenos Aires 1428, Argentina
*
Author to whom correspondence should be addressed.
Energies 2020, 13(23), 6164; https://doi.org/10.3390/en13236164
Received: 22 October 2020 / Revised: 18 November 2020 / Accepted: 22 November 2020 / Published: 24 November 2020
Solid-liquid dissolution is a central step in many industrial applications such as pharmaceutical, process engineering, and pollution control. Accurate mathematical models are proposed to improve reactor design and process operations. Analytical methods are significantly beneficial in the case of iterative methods used within experimental investigations. In the present study, a detailed analytical solution for the general case of solid particles dissolving in multiphase chemical reaction systems is presented. In this model, the authors consider a formulation that considers the particles’ shape factor. The general case presented could be utilized within different problems of multiphase flows. These methods could be extended to different cases within the chemical engineering area. Examples are illustrated here in relation to limestone dissolution taking place within the Wet Flue Gas Desulfurization process, where calcium carbonate is dissolving in an acidic environment. The method is the most common used technology to abate SO2 released by fuel combustion. Limestone dissolution plays a major role in the process. Nevertheless, there is a need for improvements in the optimization of the WFGD process for scale-up purposes. The mathematical model has been tested by comparison with experimental data from several mild acidic dissolution assays of sedimentary and metamorphic limestone. We have found that R2 ⊂ 0.92 ± 0.06 from dozens of experiments. This fact verifies the model qualifications in capturing the main drivers of the system. View Full-Text
Keywords: solid particle dissolution; flue gas desulfurization; shape factor; mathematical modeling; model experimental verification solid particle dissolution; flue gas desulfurization; shape factor; mathematical modeling; model experimental verification
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MDPI and ACS Style

De Blasio, C.; Salierno, G.; Sinatra, D.; Cassanello, M. Modeling of Limestone Dissolution for Flue Gas Desulfurization with Novel Implications. Energies 2020, 13, 6164. https://doi.org/10.3390/en13236164

AMA Style

De Blasio C, Salierno G, Sinatra D, Cassanello M. Modeling of Limestone Dissolution for Flue Gas Desulfurization with Novel Implications. Energies. 2020; 13(23):6164. https://doi.org/10.3390/en13236164

Chicago/Turabian Style

De Blasio, Cataldo, Gabriel Salierno, Donatella Sinatra, and Miryan Cassanello. 2020. "Modeling of Limestone Dissolution for Flue Gas Desulfurization with Novel Implications" Energies 13, no. 23: 6164. https://doi.org/10.3390/en13236164

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