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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Biodiesel purification by column chromatography and liquid-liquid extraction using green solvents

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Autor(es):
de Jesus, Sergio S. [1] ; Ferreira, Gabriela F. [1] ; Wolf Maciel, Maria Regina [1] ; Maciel Filho, Rubens [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Estadual Campinas, Sch Chem Engn, Lab Optimizat Design & Adv Control, PO 6066, BR-13083852 Campinas, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: FUEL; v. 235, p. 1123-1130, JAN 1 2019.
Citações Web of Science: 7
Resumo

Biodiesel purification through acid-catalyzed in situ transesterification of dry biomass of Chlorella pyrenoidosa was evaluated by liquid-liquid extraction and column chromatography, using the solvents hexane, 2-methyltetrahydrofuran (2-MeTHF), and cyclopentyl methyl ether (CPME). The purified biodiesel were characterized through their chemical composition and physicochemical characteristics. The results showed that the purified biodiesel presented a purity level higher than 96.5%, and the purities obtained with CPME were very close to those obtained with hexane. Concerning physicochemical characteristics, biodiesel purified with green solvents showed higher densities and viscosities, but compliant with the European and North American quality standards. The difficulty to evaporate residual water from biodiesel purified with 2-MeTHF after the liquid-liquid extraction process required that biodiesel was left in decantation for 24 h, which resulted in a biodiesel with water content exceeding 0.05%(mass). Biodiesel purified with green solvents, mainly by column chromatography using CPME as eluent, show great potential to replace hexane in the biodiesel purification process, and the price of these solvents is the only factor limiting their large-scale use. (AU)

Processo FAPESP: 10/03764-3 - Projeto e construção de um fotobiorreator airlift agitado para a produção de lipídeos e carboidratos
Beneficiário:Sergio Santos de Jesus
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 15/19609-0 - Utilização de solventes verdes derivados da cana-de-açúcar na extração de lipídeos e aplicação na produção de biodiesel e síntese do 2-metiltetrahidrofurano através do bagaço
Beneficiário:Rubens Maciel Filho
Linha de fomento: Auxílio à Pesquisa - Regular