Caracterização mecânica do carvão vegetal de Hovenia dulcis Thunberg
Charcoal is an alternative to replace the use of mineral coal (coke) in the metallurgical industries. Even though it is a renewable, ecological and easily produced resource, charcoal still has low mechanical resistance and high friability, causing many losses in the processes of transportation, hand...
| Autor principal: | Silva, Vinícius Cassiano Ferreira |
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| Formato: | Trabalho de Conclusão de Curso (Graduação) |
| Idioma: | Português |
| Publicado em: |
Universidade Tecnológica Federal do Paraná
2022
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.utfpr.edu.br/jspui/handle/1/29309 |
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| Resumo: |
Charcoal is an alternative to replace the use of mineral coal (coke) in the metallurgical industries. Even though it is a renewable, ecological and easily produced resource, charcoal still has low mechanical resistance and high friability, causing many losses in the processes of transportation, handling and allocation. There are some specific standards for tests on charcoal, however there is no standard that specifically evaluates the compressive strength, thus making it difficult to standardize the test. The present study aimed to carry out tests to determine the mechanical resistance of charcoal from Hovenia dulcis. The coal was subjected to compression tests, based on the breaking of the material by means of a pre-defined compressive load, the experiment was conducted in two stages, where the first stage was carried out in the wood laboratory at UTFPR campus Dois Vizinhos and the second step on the premises of the company WEG Equipamentos Elétricos S/A. Three carbonization marches (350°C, 450°C and 550°C) were used to carry out the tests, and the compressive strength parallel to the fibers, elasticity modulus and the apparent relative density of the charcoal were analyzed. The results showed that the carbonization march 2 with heating rate equal to 1.66°C/min, with a carbonization period of 5 hours and a final temperature of 450°C produced better coals with mechanical properties. For the mechanical tests, an increase in the resistance and elasticity characteristics of Hovenia dulcis coal was observed in gait 2. The apparent relative density showed a high positive correlation with thecompressivestrength and elasticity of the charcoal, confirming that the greater the the density of the material, the greater its resistance. |
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