A one-pot glycerol-based additive-blended ethyl biodiesel production: A green process

Autor(es)

Zanin, Fabio G. ^[1] ; Macedo, Alexandra ^[2] ; Archilha, Marcos Vinicios L. R. ^[3] ; Wendler, Edison P. ^[4] ; Dos Santos, Alcindo A. ^[5]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo. Inst Quim

^[2] Univ Sao Paulo. Inst Quim

^[3] Univ Sao Paulo. Inst Quim

^[4] Univ Sao Paulo. Inst Quim

^[5] Univ Sao Paulo. Inst Quim

• Tipo de documento: Artigo Científico
• Fonte: Bioresource Technology; v. 143, p. 126-130, SEP 2013.
• Citações Web of Science: 12

Resumo

N-methyl-2-pyrrolidonium methyl sulfonate, a Bronsted acid ionic liquid, promoted the transesterification of soybean oil with ethanol giving a high quality fatty acid ethyl ester. At the end of the reaction, after distillation of excess of ethanol, spontaneous phase separation took place. While the clear upper phase corresponded to the ethyl ester, the lower phase was composed of a mixture of glycerol byproduct and the catalyst. By addition of a stoichiometric amount of appropriated reagents to the resulting mixture, a new ionic liquid-catalyzed process allows the conversion of the glycerol into less polar derivatives, and consequent migration to the ethyl esters phase. This work demonstrated that emulsion, phase separation and contamination problems were completely avoided and the glycerol could be incorporated into the biodiesel as additives in a single step. The whole process involves two renewable starting materials, ethanol and vegetable oil, allowing a total green additive-blended biodiesel production process. (C) 2013 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 11/11613-8 - Reações de acoplamento-A3 na síntese de compostos nitrogenados bioativos
• Beneficiário: Alcindo Aparecido dos Santos
• Linha de fomento: Auxílio à Pesquisa - Regular
• Processo FAPESP: 05/59572-7 - Recursos sintéticos e biocatalíticos na preparação de substâncias bioativas
• Beneficiário: Alcindo Aparecido dos Santos
• Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores
• Processo FAPESP: 10/17228-6 - Biosensores para reconhecimento quiral de biomoléculas e fármacos: Polímeros helicoidais e nanopartículas
• Beneficiário: Edison Perevalo Wendler
• Linha de fomento: Bolsas no Brasil - Pós-Doutorado