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- W2724407871 endingPage "8571" @default.
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- W2724407871 abstract "Mineral matter in coal has an environmentally negative effect, as it is responsible for the generation of soot and slag. Technically, the mineral matter causes corrosion of equipment and reduces the combustion rate of coal, as well as influencing the sizing of equipment. Therefore, removing that unwanted portion of the carbon matrix would reduce the need for imports of high-quality coals and minimize transportation costs. This work aims to study the effects of the removal of mineral matter on the structure of southern Brazilian coal at the temperature of gasification and considering the kinetic parameters of the oxy-fuel combustion reaction. The demineralization process was conducted using solutions of HF, HCl and HNO3 with concentrations of 20 % (v). The samples were characterized by elemental analysis, proximate analysis, SEM, FT-IR, petrographic analysis, XRF and XRD. The removal of the mineral portion introduced major changes in the structure of coals, reflecting on the increase of the Boudouard react..." @default.
- W2724407871 created "2017-07-14" @default.
- W2724407871 creator A5017979717 @default.
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- W2724407871 date "2017-07-24" @default.
- W2724407871 modified "2023-10-16" @default.
- W2724407871 title "Demineralization of Brazilian Coals for Use in Gasification and Oxy-Fuel Combustion Processes, Aiming to Reduce CO<sub>2</sub> Emissions" @default.
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- W2724407871 doi "https://doi.org/10.1021/acs.energyfuels.7b01025" @default.
- W2724407871 hasPublicationYear "2017" @default.
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