Simultaneous esterification and transesterification of microbial oil from Chlorella minutissima by acid catalysis route: A comparison between homogeneous and heterogeneous catalysts

Autor(es)

Loures, Carla C. A. ^{[1, 2]} ; Amaral, Mateus S. ^[1] ; Da Ros, Patricia C. M. ^[1] ; Zorn, Savienne M. F. E. ^[1] ; de Castro, Heizir F. ^[1] ; Silva, Messias B. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Engn Sch Lorena, Estr Municipal Campinho S-N, BR-12602810 Sao Paulo - Brazil

^[2] Fed Ctr Technol Educ Rio de Janeiro, BR-23953030 Rio De Janeiro - Brazil

• Tipo de documento: Artigo Científico
• Fonte: FUEL; v. 211, p. 261-268, JAN 1 2018.
• Citações Web of Science: 9

Resumo

Using low cost materials, tubular photo-bioreactors type bubble column were built for microalgae cultivation. Six factors/two levels Taguchi orthogonal array (L8) was adopted to identify the input variables with the greatest influence on oil accumulation by Chlorella minutissima. The function desirability was used to simultaneously analyze the process variables to attain maximum biomass concentration and lipid content. The microalgal oil was submitted to acid simultaneous esterification and transesterification reactions using homogeneous (H2SO4) and heterogeneous (Nb2O5/SO4) catalysts. Both catalysts afforded high biodiesel yield (> 96%), although heterogeneous catalyst showed better yield (98%) and low residual glycerides at 4 h reaction. (AU)

• Processo FAPESP: 16/18909-3 - Avaliação do potencial tecnológico de microalgas visando sua aplicação nos setores energético, alimentício, cosmético e farmacêutico
• Beneficiário: Patricia Caroline Molgero Da Rós
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Regular