Modeling LImestone Reactivity and Sizing the Dissolution Tank in Wet Flue Gas Desulfurization Scrubbers
| Autor: | Frej Bjondahl, Claudio Carletti, Tapio Westerlund, Lauri Järvinen, Cataldo De Blasio, Jarl Ahlbeck |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Environmental Engineering
General Chemical Engineering Scrubber chemistry.chemical_compound Environmental Chemistry Coal ta216 Waste Management and Disposal Dissolution ta218 General Environmental Science Water Science and Technology Calcite ta212 ta214 Waste management Renewable Energy Sustainability and the Environment business.industry modeling limestone dissolution simulation Sizing Flue-gas desulfurization chemistry Reagent Slurry flue gas desulfurization business |
| Zdroj: | ENVIRONMENTAL PROGRESS AND SUSTAINABLE ENERGY. 32(3):663-672 |
| ISSN: | 1944-7442 |
| Popis: | ) is one of the pollutant gases thatresult from energy conversion by coal and oil combustion.Limestone slurries are widely utilized in wet flue gas desul-furization (WFGD) processes. The evaluation of the reagent’sreactivity is fundamental for process design and plant opera-tion. The comparison of different limestone and dolomiterocks through dissolution experiments was realized by apply-ing a model for second-order kinetics. And a total of 12 dif-ferent samples were tested, at three different size fractions. Asimulation model was developed to identify each sample’simpact on sizing the dissolution tank of a WFGD scrubber. Asecond-order model was applied within the scrubber’s disso-lution tank range of operation at pH values between 4 and5. The regression coefficients for the second-order model werehigher than 0.98 in all cases. The dissolution tank volumeestimation was done based on the reagent’s overall chemicalreaction constant in dissolution experiments. The limestonerocks, where the prevailing mineral was calcite (CaCO |
| Databáze: | OpenAIRE |
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