Ascorbic Acid as Antioxidant for Soybean Biodiesel

Shuster, Geciele; Amaral, Alexandra Aparecida do; Wyzykowski, Jair; Valenga, Márcia Gabriela Pianaro; Boschen, Nayara Laís; Maia, Guilherme Arielo Rodrigues; Rodrigues, Paulo Rogério Pinto; Gallina, André Lazarin

doi:10.17807/orbital.v10i3.1097

Cited by 2 publications

(1 citation statement)

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“…During biodiesel degradation induced by all of these oxidation inductors, a formation of radicals from alkyl chains is expected. Based on that, biodiesel stability can be managed by additives, aiming to retard oxidation and guarantee the quality of biodiesel, as the formed radicals are stronger catalysts and maybe neutralized with addition of synthetic or natural antioxidant [14–16].…”

Section: Introductionmentioning

confidence: 99%

An Analytical Evaluation of the Synergistic Effect on Biodiesel Oxidation Stability Promoted by Binary and Ternary Blends Containing Multifunctional Additives

Yahagi

Roveda

Sobral

et al. 2019

International Journal of Analytical Chemistry

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The antioxidant potential of a novel additive, named maleimide p-CH3, and the synergistic effect on biodiesel stabilization when combined with a traditional synthetic antioxidant (e.g., propyl gallate (PG)) as well as alternative additives (e.g., alizarin (ALZ) and citric acid (CA)) were investigated. The additives were combined in binary and/or ternary blends at low concentrations and their effectiveness against soybean biodiesel oxidation in the absence and presence of metal was tested. The effectiveness of binary and ternary blends was also evaluated by the Rancimat® method and compared with total acid number (TAN). The results showed that the combinations presented synergetic effects and were effective in stabilizing biodiesel in accordance with the minimum requirements of EN 14214 and also revealed that the mixture containing PG and p-CH3, even at low concentrations, can be successfully applied for biodiesel preservation. In summary, we report that the biodiesel stability can be obtained by using a reduced amount of additives, suggesting that biodiesel shelf life can be improved in association with a cost reduction when compared to the use of conventional antioxidants.

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Section: Introductionmentioning

confidence: 99%