Caracterização de resíduo sólido formado em biodiesel de sebo bovino

Química Nova

Valter José Fernandes Júnior²  Antonio De Sousa Araujo²  Fábio Da Silva Vinhado¹  Paulo Roberto Pivesso¹ 

[1] ,Universidade Federal do Rio Grande do Norte Instituto de Química Natal RN ,Brasil

关键词: monoglycerides;    beef tallow;    biodiesel;   

DOI  :  10.1590/S0100-40422012001000002

来源: SciELO

【 摘 要 】

The nature of the solid residue formed in beef tallow biodiesel from two commercial producers in Brazil was determined by comparative analytical techniques, namely, gas chromatography with flame ionization detector (GC-FID) and thermogravimetry (TG). Pure monopalmitin and monostearin were used as reference standards for both methodologies. Analyses were carried out before and after filtration of the solids formed, which allowed the observation that the formation of precipitate reduced the levels of monoglycerides in the beef tallow biodiesel. The chromatographic and thermogravimetric results confirmed the nature of the residue as saturated monoglycerides, predominantly monostearin and monopalmitin.

【 授权许可】

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