Thermal behaviour of the different parts of almond shells as waste biomass
The main aim of this study is to investigate the thermal behaviour of the different parts of almond shells produced in an almond industry as a waste biomass. For this purpose, several experiments have been conducted under laboratory conditions. After removing the mature almonds, the waste raw materi...
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| Format: | info:eu-repo/semantics/article |
| Language: | English |
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2023
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10835/14811 |
| _version_ | 1789406596576575488 |
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| author | Garzón Garzón, Eduardo Arce, Carolina Callejón Ferre, Ángel Jesús Pérez Falcón, JM Sánchez Soto, Pedro José |
| author_facet | Garzón Garzón, Eduardo Arce, Carolina Callejón Ferre, Ángel Jesús Pérez Falcón, JM Sánchez Soto, Pedro José |
| author_sort | Garzón Garzón, Eduardo |
| collection | DSpace |
| description | The main aim of this study is to investigate the thermal behaviour of the different parts of almond shells produced in an almond industry as a waste biomass. For this purpose, several experiments have been conducted under laboratory conditions. After removing the mature almonds, the waste raw materials subject of this study were treated with distilled water (10 min) and separated in several parts. Taking into account their physical characteristics, they were: (a) complete shells: exocarp, mesocarp and endocarp without grinding (Sample C); (b) ground samples of complete shells, sieved under 0.2 mm (Sample M); (c) hard layers of the endocarp (Sample E); (d) internal layers of the endocarp (Sample I); and (e) mature drupes (Sample P) or skin, being constituted by the flexible part of green colour (fresh form) or yellow (after drying). The thermal behaviour of all these sample materials has been investigated using a laboratory furnace, with determination of ash contents and mass loss by progressive heating (120 min of holding time). Elemental and DTA-TG/DTG analyses of selected sample materials have been carried out. Although a complete study can be very complex, a first approach has been performed in this investigation. Results on thermal decomposition of this biomass waste have been presented to emphasize the main differences between sample materials of almond shells. These results have demonstrated the influence of several parameters, such as the particle size, and previous treatments in the thermal behaviour of the different parts of the almond shells, as showed in this investigation. Structural analysis of almond shells allowed to determine lignin, cellulose and hemicellulose. From the lignin content, it has been predicted the higher heating value (18.24 MJkg(-1)) of this waste as by-product of industrial interest. Other linear correlations to calculate this parameter have been applied with similar results in all these samples. |
| format | info:eu-repo/semantics/article |
| id | oai:repositorio.ual.es:10835-14811 |
| institution | Universidad de Cuenca |
| language | English |
| publishDate | 2023 |
| record_format | dspace |
| spelling | oai:repositorio.ual.es:10835-148112023-12-15T11:45:16Z Thermal behaviour of the different parts of almond shells as waste biomass Garzón Garzón, Eduardo Arce, Carolina Callejón Ferre, Ángel Jesús Pérez Falcón, JM Sánchez Soto, Pedro José Almond shells Biomass Thermal behaviour Wastes Lignin Higher heating value The main aim of this study is to investigate the thermal behaviour of the different parts of almond shells produced in an almond industry as a waste biomass. For this purpose, several experiments have been conducted under laboratory conditions. After removing the mature almonds, the waste raw materials subject of this study were treated with distilled water (10 min) and separated in several parts. Taking into account their physical characteristics, they were: (a) complete shells: exocarp, mesocarp and endocarp without grinding (Sample C); (b) ground samples of complete shells, sieved under 0.2 mm (Sample M); (c) hard layers of the endocarp (Sample E); (d) internal layers of the endocarp (Sample I); and (e) mature drupes (Sample P) or skin, being constituted by the flexible part of green colour (fresh form) or yellow (after drying). The thermal behaviour of all these sample materials has been investigated using a laboratory furnace, with determination of ash contents and mass loss by progressive heating (120 min of holding time). Elemental and DTA-TG/DTG analyses of selected sample materials have been carried out. Although a complete study can be very complex, a first approach has been performed in this investigation. Results on thermal decomposition of this biomass waste have been presented to emphasize the main differences between sample materials of almond shells. These results have demonstrated the influence of several parameters, such as the particle size, and previous treatments in the thermal behaviour of the different parts of the almond shells, as showed in this investigation. Structural analysis of almond shells allowed to determine lignin, cellulose and hemicellulose. From the lignin content, it has been predicted the higher heating value (18.24 MJkg(-1)) of this waste as by-product of industrial interest. Other linear correlations to calculate this parameter have been applied with similar results in all these samples. 2023-12-15T11:45:16Z 2023-12-15T11:45:16Z 2021-06-20 info:eu-repo/semantics/article 1388-6150 http://hdl.handle.net/10835/14811 en https://doi.org/10.1007/s10973-021-10940-x Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
| spellingShingle | Almond shells Biomass Thermal behaviour Wastes Lignin Higher heating value Garzón Garzón, Eduardo Arce, Carolina Callejón Ferre, Ángel Jesús Pérez Falcón, JM Sánchez Soto, Pedro José Thermal behaviour of the different parts of almond shells as waste biomass |
| title | Thermal behaviour of the different parts of almond shells as waste biomass |
| title_full | Thermal behaviour of the different parts of almond shells as waste biomass |
| title_fullStr | Thermal behaviour of the different parts of almond shells as waste biomass |
| title_full_unstemmed | Thermal behaviour of the different parts of almond shells as waste biomass |
| title_short | Thermal behaviour of the different parts of almond shells as waste biomass |
| title_sort | thermal behaviour of the different parts of almond shells as waste biomass |
| topic | Almond shells Biomass Thermal behaviour Wastes Lignin Higher heating value |
| url | http://hdl.handle.net/10835/14811 |
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