Evaluation of the oxidative stability of biodiesel blends from soybean, tallow and castor bean using experimental mixture design

Journal of the Brazilian Chemical Society

Anaildes L. Carvalho²  Sarah M. F. Santana²  Cristiane S. Silva¹  Iuri M. Pepe¹  Marcos A. Bezerra¹  Leandro M. Aragão¹  Cristina M. Quintella²  Leonardo S. G. Teixeira² 

[1] ,Universidade Federal da Bahia Instituto de Química Salvador BA ,Brazil

关键词: biodiesel;    oxidative stability;    mixture experimental design;    soybean;    tallow;    castor bean;   

DOI  :  10.5935/0103-5053.20130174

来源: SciELO

【 摘 要 】

This study proposes an experimental design of biodiesel constrained mixtures to evaluate and optimize the oxidative stability of soybean biodiesel mixed with different amounts of tallow and castor bean biodiesels. To prepare the biodiesel blends, the proportions of each type of biodiesel were varied, producing mixtures that contained 80-86% (v/v) soybean, 5-15% (v/v) tallow, and 1-10% (v/v) castor bean biodiesel. The induction period of pure soybean biodiesel served as the baseline for comparing the stability of the mixtures. The experimental design strategy was capable of producing the best oxidative stability for biodiesel mixtures. The quadratic model obtained in the optimization stage fits the experimental data well. The higher induction period occurred at the following composition: 82.5% (v/v) soybean, 7.5% (v/v) tallow and 10.0% (v/v) castor bean.

【 授权许可】

CC BY   
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