Characterization of solid residue formed in beef tallow biodiesel

Química Nova

Universidade Federal do Rio Grande do Norte, Natal, Brasil¹  Vinhado, Fábio da Silva¹  Fernandes Júnior, Valter José¹  Pivesso, Paulo Roberto¹  Agência Nacional do Petróleo, Gás Natural e Biocombustíveis, Brasília, Brasil¹  Araujo, Antonio de Sousa¹ 

关键词: monoglycerides;    beef tallow;    biodiesel.;   

DOI  :  10.1590/S0100-40422012001000002

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

Unknown