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Revista Virtual de Química
Article . 2018 . Peer-reviewed
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Energetic Potential of Coconut Shell (Cocos nucifera L.) for Use in the Charcoal Production by Pyrolysis

Authors: Gabriela Tami Nakashima; Gabriela Bertoni Belini; Elias Ricardo Durango Padilla; Walter R. Waldman; Fábio Minoru Yamaji;

Energetic Potential of Coconut Shell (Cocos nucifera L.) for Use in the Charcoal Production by Pyrolysis

Abstract

A falta de um destino correto para o descarte dos residuos de coco verde e seu potencial como biomassa estimula sua utilizacao para fins energeticos. Este trabalho teve como objetivo investigar o potencial energetico da casca de coco verde (Cocos nucifera L.) para producao de carvao vegetal atraves de estudo pirolitico. Para a obtencao do carvao vegetal, as amostras foram submetidas a pirolise, nas temperaturas de 300 °C (CP300), 350 °C (CP350), 400 °C (CP400), 450 °C (CP450) e 500 °C (CP500). A casca de coco e os carvoes produzidos foram caracterizados mediante: analise imediata, poder calorifico superior (PCS) e analise termogravimetrica (TG). Para os carvoes vegetais produzidos, foram tambem determinados seus rendimentos gravimetricos, energeticos e em carbono fixo. Observou-se que, com o aumento da temperatura de pirolise, houve a diminuicao do teor de volateis (CP300=37,95% e CP500=14,94%) e, consequentemente, aumento do carbono fixo (CP300=56,42% e CP500=79,39%) e PCS (CP300=28,84 MJ/kg e CP500=29,59 MJ/kg). O aumento da temperatura tambem provocou a diminuicao do rendimento gravimetrico (CP300=48,05% e CP500=33,29%) e energetico (CP300=66,50% e CP500=52,76%) e um aumento na estabilidade termica. Pode-se concluir que o carvao vegetal da casca de coco verde e uma alternativa para o reaproveitamento energetico desse residuo e tem condicoes para ser utilizado como carvao vegetal comercial.

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
3
Top 10%
Average
Average
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