Rota de produção de biocombustível a partir de casca de macadâmia: efeito de parâmetros sobre o índice de mistura em leitos fluidizados
DOI:
https://doi.org/10.47456/bjpe.v9i1.40123Keywords:
Biomass, Fluid dynamic, Energy, Segregation, SustainabilityAbstract
A pirólise da casca da macadâmia (MNS) em leito fluidizado tem grande potencial para produção de bio-óleo. O efetivo contato gás-sólido permite alcançar altas taxas de transferência de calor e temperatura uniforme no leito. Entretanto, misturas binárias podem levar à segregação de partículas, reduzindo as taxas de transferência de calor e massa no reator. Portanto, nesta pesquisa, o planejamento de experimentos foi aplicado para avaliar o efeito dos parâmetros (velocidade de injeção do ar, V/VMF; razão do diâmetro das partículas, DMNS/DS, e fração mássica de MNS, XMNS) sobre o índice de mistura (Im) em leito fluidizado composto por MNS e areia. A análise estatística revelou que apenas DMNS/DS e V/VMF tiveram efeito sobre índice de mistura (Im), considerando um intervalo de confiança de 95%. Desta forma, para velocidade do ar 20% acima da mínima fluidização e misturas com DMNS/DS < 3, os leitos fluidizados apresentaram concentrações de partículas uniforme ao longo da coluna. Os resultados indicam que o leito fluidizado pode ser empregado na produção de biocombustível a partir da casca de macadâmia.
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