| Autor: |
Juliane Resges Orives, Kelly Roberta Spacino, Cezar Henrique Furtoso Rodrigues, Rodolfo Lopes Coppo, Jurandir Pereira Pinto, Dionísio Borsato, Diego Galvan |
| Jazyk: |
portugalština |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
Química Nova, Volume: 37, Issue: 2, Pages: 244-248, Published: APR 2014 |
| 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: |
OpenAIRE |
| Externí odkaz: |
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