Combustion of pellets produced from the powders of coconut and cashew nut shells: Chemical, thermal and emission analyses
| Autor: | Gardilene M da Silva, Francisco Sá Cavalcante, Mona Lm de Oliveira, Brenna Ks Lima, Fabriciany L Moreira, Mônica Gac Ratts, Fladimir de Lima Gondim, Allison Matias de Sousa, Gilvan Ribeiro dos Santos, Daniel Silveira Serra |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Waste Management & Research: The Journal for a Sustainable Circular Economy. 40:420-428 |
| ISSN: | 1096-3669 0734-242X |
| DOI: | 10.1177/0734242x20983417 |
| Popis: | Most of the energy consumed worldwide comes from non-renewable sources, such as oil derivatives, making it necessary to search for renewable, clean energy sources, with emphasis on biomass from agricultural and industrial waste. Coconut shell pellets (CSPs) and cashew nut shell pellets (CNSPs) were manufactured and subsequently subjected to chemical, thermal and exhaust gas analyses of their combustion. Mean temperature results in the combustion area were 366.44 ± 84.79°C (CSPs) and 295.00 ± 89.47°C (CNSPs). The exhaust gas combustion values were 19.43 ± 0.57% (CSPs) and 18.75 ± 0.77% (CNSPs) of O2, 2348 ± 1241 ppm (CSPs) and 2901 ± 499 ppm (CNSPs) of CO, 14.92 ± 5.06 ppm (CSPs) and 39.83 ± 10.91 ppm (CNSPs) of NOx, and 441.25 ± 130.41 ppm (CSPs) and 2841.50 ± 765.26 ppm (CNSPs) of CH4. In conclusion, the combustion process of CSPs proved to be less polluting and more energy efficient when compared with CNSPs. The analyses of the exhaust gases from the combustion of these biomasses can serve as a basis for the creation of safety parameters and public policies to regulate the use of biomass for energy purposes. |
| Databáze: | OpenAIRE |
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