| Texto completo | |
| Autor(es): |
Ceron, Annie A.
[1]
;
Vilas Boas, Renata N.
[1]
;
Biaggio, Francisco C.
[1]
;
de Castro, Heizir F.
[1]
Número total de Autores: 4
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Engn Sch Lorena, BR-12602810 Lorena, SP - Brazil
Número total de Afiliações: 1
|
| Tipo de documento: | Artigo Científico |
| Fonte: | BIOMASS & BIOENERGY; v. 119, p. 166-172, DEC 2018. |
| Citações Web of Science: | 2 |
| Resumo | |
Simulated fusel oil containing a mixture of ethyl (11.2%), butyl (10.6%) and isoamyl alcohols (78.2%) was used to obtain lubricant esters from palm kernel oil by enzymatic route using lipase from Burkholderia cepacia immobilized on epoxy matrix silica-hydroxyethyl cellulose as a biocatalyst. Runs were performed under both batch and continuous mode to determine the influence of oil-to alcohol molar ratio on the ester concentrations using as a model isoamyl alcohol as acyl acceptor. The optimum oil to alcohol molar ratio was 1:4 and high isoamyl esters formation (99 wt%) was attained in 48 h (batch runs) and 8 h of space-time (continuous runs). Such conditions were used to perform the transesterification reactions from palm kernel oil with simulated fusel oil rendering similar results. The kinematic viscosities at 40 degrees C confirmed the high conversion by modifying the initial palm kernel oil viscosity from 30.13 mm(2)s(-1) to values ranging from 3 to 6 mm(2)s(-1). The viscosity index was 149.22 +/- 2.11 and the oxidative stability was 23.85 +/- 1.65 min. Also, the biocatalyst was found to be stable revealing half-life time (t(1)(/2)) of about 38 days. (AU) | |
| Processo FAPESP: | 16/10636-8 - Da fábrica celular à biorrefinaria integrada Biodiesel-Bioetanol: uma abordagem sistêmica aplicada a problemas complexos em micro e macroescalas |
| Beneficiário: | Roberto de Campos Giordano |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa BIOEN - Temático |