Theoretical and experimental study of infrared spectra of fatty acid esters present in soybean biodiesel

Química Nova

Instituto Nacional de Metrologia, Duque de Caxias, Brasil¹  Miranda, Alisson Marques de¹  Anconi, Cleber Paulo A.¹  Jorio, Ado¹  Armond, Raigna A. S. Z.¹  Universidade Federal de Lavras, Lavras, Brasil¹  Castilho-Almeida, Eduardo W.¹  Almeida, Wagner Batista De¹  Achete, Carlos Alberto¹  Santos, Hélio F. Dos¹  Ferreira, Erlon H. Martins¹  Universidade Federal de Minas Gerais, Belo Horizonte, Brasil¹  Universidade Federal de Juiz de Fora, Juiz de Fora, Brasil¹ 

关键词: fatty acid esters;    biodiesel;    infrared spectra.;   

DOI  :  10.1590/S0100-40422012000900009

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

In this work, theoretical and experimental infrared spectra of fatty acid methyl esters (FAME) contained in soybean biodiesel were analyzed seeking the assignments of the relevant vibrational modes to characterize crude soybean oil and soybean biodiesel. The results showed the usefulness of infrared spectra for monitoring saturated and unsaturated compounds as well as impurities (mainly glycerol) in raw samples. This is the first step toward proposing an efficient molecular spectroscopy routine to certify biodiesel fuel.

【 授权许可】

Unknown