Estudo da cinética de oxidação de biodiesel b100 obtido de óleo de soja e gordura de porco: determinação da energia de ativação
| Autor: | Diego Galvan, Juliane R. Orives, Rodolfo L. Coppo, Cezar Henrique F. Rodrigues, Kelly Roberta Spacino, Jurandir P. Pinto, Dionísio Borsato |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 37, Iss 2, Pp 244-248 (2014) |
| Druh dokumentu: | article |
| ISSN: | 1678-7064 0100-4042 |
| DOI: | 10.5935/0100-4042.20140042 |
| Popis: | The quality of biodiesel is extremely important for its commercialization and use; oxidation of biodiesel is a critical factor because it decreases the fuel storage time. A commercial biodiesel was mixed with synthetic antioxidants, according to a simplex-centroid experimental mixture design, and its stability was evaluated through induction period and activation energy. In all trials, addition of antioxidants increased activation energy in the mixtures containing tertiary butylhydroquinone (TBHQ). When a mixture containing 50% TBHQ and 50% butylated hydroxyanisole was used, synergistic effect was observed, and the major activation energy obtained was 104.43 kJ mol-1. |
| Databáze: | Directory of Open Access Journals |
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