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Título: | Characterization of ashes from greenhouse crops plant biomass residues using X-ray fluorescence analysis and X-ray diffraction |
Autor: | Garzón Garzón, Eduardo; Morales, Laura CSIC; Martínez-Blanes, José M. CSIC ORCID; Sánchez-Soto, Pedro José CSIC ORCID | Fecha de publicación: | dic-2017 | Editor: | John Wiley & Sons | Citación: | X-Ray Spectrometry 46(6): 569-578 (2017) | Resumen: | A characterization of ashes obtained by thermal treatments on greenhouse crops plant biomass residues is presented. The chemical analysis, by X-ray fluorescence (wavelength-dispersive X-ray fluorescence), and phase analysis, by X-ray diffraction, of the resultant ashes are reported. Thermal treatments of selected samples of these residues increase the relative amounts of inorganic Mg, Si, P, and S in the ashes, being these amounts as high as increasing temperature. As an opposite effect, Na, Cl, and K contents decrease as increasing temperature by a volatilization process of the chlorides, as confirmed by X-ray diffraction. The crystalline phase analysis of the ashes demonstrates the formation of inorganic constituents of the biomass, including alkaline chlorides and calcium salts (calcite, anhydrite, and apatite). Progressive thermal treatments induce the formation of new silicate phases (akermanite and grossularite) and silica (α-quartz and cristobalite). Furthermore, the particle size of the starting biomass samples does not influence the evolution of the crystalline phases by thermal treatments. In contrast, a previous leaching using water and subsequent heating at 1,000 °C produces the formation of periclase (MgO), lime (CaO), and the silicate gehlenite, without the presence of anhydrite. This study is interesting for future investigations on the residues as a profitable biomass source for energy production and sustainable large-scale management. Some potential applications of the resultant ashes can be proposed. | Versión del editor: | https://doi.org/10.1002/xrs.2801 | URI: | http://hdl.handle.net/10261/192070 | DOI: | 10.1002/xrs.2801 | ISSN: | 0049-8246 | E-ISSN: | 1097-4539 |
Aparece en las colecciones: | (ICMS) Artículos |
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