%0 Journal Article
%T Used frying oil biodiesel production: experimental factorial design and multivariate analysis
%A Rosana de Cassia de Souza Schneider
%A Robson Mocellin
%A Marcos Moura da Trindade
%A Luciano Roni Silva Lara
%J Tecno-L¨®gica
%D 2009
%I Universidade de Santa Cruz do Sul (UNISC)
%X Biodiesel ¨¦ derivado de fontes renov¨¢veis ereduz significativamente as emiss es atmosf¨¦ricas. Pode serobtido de diversos processos, como a alcoolise. Nestetrabalho, o biodiesel foi produzido atrav¨¦s da alcoolise do¨®leo de fritura usado de ind¨²strias de alimenta  o. Umplanejamento experimental foi utilizado e os produtos derea  o foram analisados por cromatografia gasosa (CG)espectroscopia na regi o do infravermelho com acess¨®rio dereflex o total atenuada horizontal (IV-HATR) e an¨¢liseexplorat¨®ria por an¨¢lise de componentes principais (PCA) ean¨¢lise hier¨¢rquica de grupos (HCA). De acordo com ascondi  es analisadas obteve-se alta convers o em ¨¦steresmet¨ªlicos. Por IV-HATR, a convers o m¨¢xima foi observadaem condi  es experimentais de temperatura ( 50 e 60¡ãC),concentra  o de catalisador (0,6 e 1,2%) e a 1:8 de rela  omolar entre ¨®leo e metanol. Tamb¨¦m foi poss¨ªveldiscriminar por an¨¢lise quimiom¨¦trica, 4 grupos noplanejamento experimental e determinar as melhorescondi  es para a produ  o de biodiesel de ¨®leo de friturausado. Abstract Biodiesel is derived from renewable sources and it significantly reduces atmospheric emissions. It can be obtained byseveral processes, such as alcoholysis. In this work, biodiesel was produced through alcoholysis of used frying oil from a cateringbusiness. An experimental factorial design was used and the reaction products were analyzed through gas chromatography (GC),horizontal attenuated total reflection Fourier transform infrared (HATR/FT-IR) spectroscopy and exploratory analysis withprincipal component analysis (PCA) and hierarchical cluster analysis (HCA). Under the conditions analyzed, a high degree ofconversion to methyl ester was found. As shown by HATR/FT-IR, the maximum conversion was obtained when the experimentalconditions had the temperature ( 50 e 60¡ãC), largest catalyst concentration (0,6 e 1,2%) and a 1:8 molar proportion of oil tomethanol. It was possible to discriminate, through chemometrics analysis, four groups in the proposed experimental factorialdesign and determine the better condition for biodiesel production from used frying oil.
%K Biodiesel
%K used frying oil
%K GC
%K HATR
%K chemometrics
%U http://online.unisc.br/seer/index.php/tecnologica/article/viewFile/924/676