Morphological and physicochemical characterization of biochar produced by gasification of selected forestry species
In this study, biochar samples acquired as by-product by downdraft gasification at 700 °C from Eucalyptus grandis (BC-EG), Acacia magnium (BC-AM) and Gmelina arborea (BC-GA) were characterized. The morphological characteristics and physicochemical properties of biochar were studied using nitrogen ph...
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| Format: | Online |
| Language: | eng |
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Universidad Pedagógica y Tecnológica de Colombia
2017
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| Online Access: | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/7324 |
| _version_ | 1801706080797982720 |
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| author | Suárez-Hernández, Laura Ardila-A., Alba N. Barrera-Zapata, Rolando |
| author_facet | Suárez-Hernández, Laura Ardila-A., Alba N. Barrera-Zapata, Rolando |
| author_sort | Suárez-Hernández, Laura |
| collection | OJS |
| description | In this study, biochar samples acquired as by-product by downdraft gasification at 700 °C from Eucalyptus grandis (BC-EG), Acacia magnium (BC-AM) and Gmelina arborea (BC-GA) were characterized. The morphological characteristics and physicochemical properties of biochar were studied using nitrogen physisorption by the Brunauer-Emmet-Teller (BET) method, Scanning Electron Microscopy (SEM), X-ray Energy Dispersive Spectrometry (EDX) and Fourier Transform Infrared Spectroscopy (FTIR). The surface area (SA) of the materials was in the 2.0-50.0 m2/g range, with the biochar obtained from BC-EG showing the highest SA (50.0 m2/g), while the biochar derived from BC-GA showed the lowest SA (2.0 m2/g). In addition, all samples can be classified as mesoporous materials because their pore sizes were between 2 and 50 nm. This indicates that these materials can be used in absorption processes; however, the biochar obtained from BC-AM is expected to be the most suitable for absorption applications. FTIR biochar spectra did not exhibit characteristic peaks for cellulose or hemicellulose in any sample due to decomposition of these compounds at the gasification temperature. Moreover, according to SEM/EDX analyzes, all the samples presented well-defined pore structure and contained minerals as Na, K and Ca, suggesting that the biochar could also be useful for soil amendment applications. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-7324 |
| institution | Revista Facultad de Ingeniería |
| language | eng |
| publishDate | 2017 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-73242022-06-15T16:15:53Z Morphological and physicochemical characterization of biochar produced by gasification of selected forestry species Caracterización morfológica y fisico-química de biocarbones producidos por la gasificación de especies forestales seleccionadas Suárez-Hernández, Laura Ardila-A., Alba N. Barrera-Zapata, Rolando Acacia Biomass charcoal Eucalyptus Forestry products Forestry species Gmelina Physicochemical property Acacia Biocarbón Especies forestales Eucalyptus Gmelina Productos forestales Propiedades fisicoquímicas In this study, biochar samples acquired as by-product by downdraft gasification at 700 °C from Eucalyptus grandis (BC-EG), Acacia magnium (BC-AM) and Gmelina arborea (BC-GA) were characterized. The morphological characteristics and physicochemical properties of biochar were studied using nitrogen physisorption by the Brunauer-Emmet-Teller (BET) method, Scanning Electron Microscopy (SEM), X-ray Energy Dispersive Spectrometry (EDX) and Fourier Transform Infrared Spectroscopy (FTIR). The surface area (SA) of the materials was in the 2.0-50.0 m2/g range, with the biochar obtained from BC-EG showing the highest SA (50.0 m2/g), while the biochar derived from BC-GA showed the lowest SA (2.0 m2/g). In addition, all samples can be classified as mesoporous materials because their pore sizes were between 2 and 50 nm. This indicates that these materials can be used in absorption processes; however, the biochar obtained from BC-AM is expected to be the most suitable for absorption applications. FTIR biochar spectra did not exhibit characteristic peaks for cellulose or hemicellulose in any sample due to decomposition of these compounds at the gasification temperature. Moreover, according to SEM/EDX analyzes, all the samples presented well-defined pore structure and contained minerals as Na, K and Ca, suggesting that the biochar could also be useful for soil amendment applications. En este estudio se caracterizaron muestras de biocarbones obtenidos como subproducto del proceso de gasificación, en lecho fijo a 700 °C, de las especies Eucalyptus grandis (BC-EG), Acacia magnium (BC-AM) y Gmelina arborea (BC-GA). Sus características morfológicas y propiedades fisicoquímicas se evaluaron usando fisisorción de nitrógeno por el método de Brunauer-Emmet-Teller (BET), espectroscopia de dispersión de energía de rayos X (EDS) y espectroscopia infrarroja con Transformada de Fourier (FTIR). Los biocarbones analizados presentaron áreas superficiales en el rango de 2.0-50.0 m2/g; el biocarbón originado de la especie BC-EG presentó la mayor área superficial (50.0 m2/g), mientras que el biocarbón obtenido de BC-GA mostró la menor (2.0 m2/g). Por otro lado, las muestras obtenidas pueden clasificarse como materiales mesoporosos debido a que su tamaño de poro estuvo entre 2 y 50 nm; esto indica que dichos materiales pueden usarse en procesos de absorción, aunque, se espera que el material proveniente de BC-AM sea el más adecuado para este tipo de aplicaciones. Los espectros FTIR no mostraron picos característicos de celulosa y hemicelulosa en ninguna de las muestras, lo cual se atribuye a su descomposición por las temperaturas alcanzadas en los procesos de gasificación. Adicionalmente, de acuerdo a los análisis SEM/EDX todas las muestras analizadas presentan estructuras de poros bien definidas y contienen minerales como Na, K y Ca, lo cual sugiere que los biocarbones también podrían ser considerados para remediación de suelos. Universidad Pedagógica y Tecnológica de Colombia 2017-09-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion investigation investigación application/pdf application/xml https://revistas.uptc.edu.co/index.php/ingenieria/article/view/7324 10.19053/01211129.v26.n46.2017.7324 Revista Facultad de Ingeniería; Vol. 26 No. 46 (2017); 123-130 Revista Facultad de Ingeniería; Vol. 26 Núm. 46 (2017); 123-130 2357-5328 0121-1129 eng https://revistas.uptc.edu.co/index.php/ingenieria/article/view/7324/5715 https://revistas.uptc.edu.co/index.php/ingenieria/article/view/7324/6428 |
| spellingShingle | Acacia Biomass charcoal Eucalyptus Forestry products Forestry species Gmelina Physicochemical property Acacia Biocarbón Especies forestales Eucalyptus Gmelina Productos forestales Propiedades fisicoquímicas Suárez-Hernández, Laura Ardila-A., Alba N. Barrera-Zapata, Rolando Morphological and physicochemical characterization of biochar produced by gasification of selected forestry species |
| title | Morphological and physicochemical characterization of biochar produced by gasification of selected forestry species |
| title_alt | Caracterización morfológica y fisico-química de biocarbones producidos por la gasificación de especies forestales seleccionadas |
| title_full | Morphological and physicochemical characterization of biochar produced by gasification of selected forestry species |
| title_fullStr | Morphological and physicochemical characterization of biochar produced by gasification of selected forestry species |
| title_full_unstemmed | Morphological and physicochemical characterization of biochar produced by gasification of selected forestry species |
| title_short | Morphological and physicochemical characterization of biochar produced by gasification of selected forestry species |
| title_sort | morphological and physicochemical characterization of biochar produced by gasification of selected forestry species |
| topic | Acacia Biomass charcoal Eucalyptus Forestry products Forestry species Gmelina Physicochemical property Acacia Biocarbón Especies forestales Eucalyptus Gmelina Productos forestales Propiedades fisicoquímicas |
| topic_facet | Acacia Biomass charcoal Eucalyptus Forestry products Forestry species Gmelina Physicochemical property Acacia Biocarbón Especies forestales Eucalyptus Gmelina Productos forestales Propiedades fisicoquímicas |
| url | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/7324 |
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