Vegetable tannins-based additive as antioxidant for biodiesel

Schaumlöffel, Lívia de Souza; Fontoura, Luiz Antonio Mazzini; Santos, Sérgio Leandro dos; Pontes, Lucas F.; Gutterres, Mariliz

doi:10.1016/j.fuel.2021.120198

Cited by 14 publications

(6 citation statements)

References 51 publications

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“…The presence of phenolic structure in the natural extract makes this additive work as a reducing agent, through mechanisms like commercial antioxidants. 81 The mechanism responsible for the reducing action is the hydrogen donation which, as a result, postpones the formation of secondary auto-oxidation products. 82 Considering the supercritical process to obtain the natural antioxidants, it is necessary to make some considerations about the limitations of the proposed process.…”

Section: Oxidation Stability Of Biodieselmentioning

confidence: 99%

Potential application of supercritical extract of pomegranate peel as bio‐antioxidant for biodiesel

Witt

Johann

Triques

et al. 2021

Env Prog and Sustain Energy

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The performance of the pomegranate peel extract against the synthetic antioxidant additives on the oxidation stability of commercial biodiesel B100 derived from soybean was evaluated. The experimental extraction was conducted under 200 bar, 35, 45, and 55 C, and 0.0, 2.5, and 5.0 mL of ethanol as co-solvent. Due to the rich in squalene and α-tocopherol composition, all extracts presented high antioxidant capacity, 16.70 to 1.68 μg mL À1 . In the oxidation stability tests, the addition of 1000 ppm of the supercritical extracts of pomegranate peel to biodiesel resulted in the increment of the induction time of pure biodiesel by up to 1.83. In contrast, the biodiesel added at 1000 ppm with commercial antioxidants increased the times up to 1.58 and 1.79, respectively for butylated hydroxyanisole and butylated hydroxytoluene. Biodiesel added with supercritical extract of pomegranate peel, obtained under 35 C and with 5.0 mL of ethanol, presented higher efficiency in the prevention of the oxidative process and was in accordance with norm European Standard EN 14214. The findings revealed that the extract is a promising natural antioxidant for biodiesel, that, besides being eco-friendly, is an additive that can substitute commercial synthetic antioxidants, extending biodiesel stability.

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Section: Oxidation Stability Of Biodieselmentioning

confidence: 99%

Potential application of supercritical extract of pomegranate peel as bio‐antioxidant for biodiesel

Witt

Johann

Triques

et al. 2021

Env Prog and Sustain Energy

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“…Several agro-forestry wastes showed promising potential to be used as source of bioactive antioxidant compounds for biodiesel. Schaumlöffel et al tested the efficiency of extracts from different lignocellulosic materials, namely, acacia ( Acacia mearnsii ), chestnut ( Castanea sativa ), and quebracho ( Schinopsis lorentzii ), as natural antioxidants for soybean biodiesel. The authors reported that 350 ppm of extract, mainly composed by tannins, mixed with 1.59 wt % of triethanolamine was more effective in enhancing the oxidative stability of soybean biodiesel than synthetic TBHQ .…”

Section: Introductionmentioning

confidence: 99%

“…Schaumlöffel et al tested the efficiency of extracts from different lignocellulosic materials, namely, acacia ( Acacia mearnsii ), chestnut ( Castanea sativa ), and quebracho ( Schinopsis lorentzii ), as natural antioxidants for soybean biodiesel. The authors reported that 350 ppm of extract, mainly composed by tannins, mixed with 1.59 wt % of triethanolamine was more effective in enhancing the oxidative stability of soybean biodiesel than synthetic TBHQ . Devi et al evaluated the effect of Thuja oreantalis L. leaf extract (obtained by leaf extraction with 100% of ethanol) on the oxidative stability of biodiesel produced from waste cooking oil through transesterification process.…”

Section: Introductionmentioning

confidence: 99%

“…The authors reported that 350 ppm of extract, mainly composed by tannins, mixed with 1.59 wt % of triethanolamine was more effective in enhancing the oxidative stability of soybean biodiesel than synthetic TBHQ. 13 Devi et al 14 evaluated the effect of Thuja oreantalis L. leaf extract (obtained by leaf extraction with 100% of ethanol) on the oxidative stability of biodiesel produced from waste cooking oil through transesterification process. A total of six concentrations of extract were studied in order to evaluate their antioxidant activity in biodiesel observing that at least 100 ppm of extract allowed one to comply with the the requirements of the commercial biodiesel quality standard 15 (6 h).…”

Section: Introductionmentioning

confidence: 99%

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Vineyard Pruning Extracts as Natural Antioxidants for Biodiesel Stability: Experimental Tests and Preliminary Life Cycle Assessment

Dorosh

Surra

Eusébio

et al. 2023

ACS Sustainable Chem. Eng.

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The control of the oxidative stability of biodiesel and blends of biodiesel with diesel is one of the major concerns of the biofuel industry. The oxidative degradation of biodiesel can be accelerated by several factors, and this is most critical in the so-called second generation biodiesel, which is produced from low-cost raw materials with lower environmental impacts. The addition of antioxidants is imperative to ensure the oxidative stability of biodiesel, and these are considered products of high commercial value. The antioxidants currently available on the market are from synthetic origin, so the existence/availability of alternative antioxidants of natural origin (less dependent on fossil sources) at a competitive price presents itself as a strong business opportunity. This work describes and characterizes a sustainable alternative to synthetic antioxidants used in the biodiesel market developed from extracts of vineyard pruning waste (VPW), which are naturally rich in phenolic compounds with antioxidant properties. A hydrothermal extraction process was applied as a more efficient and sustainable technology than the conventional one with the potential of the extracts as antioxidant additives in biodiesel evaluated in Rancitech equipment. The VPW extract showed comparable antioxidant activity as the commercial antioxidant butylated hydroxytoluene (BHT) typically used in biodiesel. The stability of the biodiesel is dependent from the amount of the extract added. Further, for the first time, the assessment of the environmental impacts of using natural extracts to control the oxidative stability of biodiesel in the production process is also discussed as a key factor of the process environmental sustainability.

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“…Fatores como luz, umidade, metais, calor e microrganismos aceleram a degradação do biodiesel por oxidação. O diesel, ao contrário do biodiesel, não contém olefinas e sofre menos com a ação do arSCHAUMLÖFFEL et al, 2021). maior do que no oleato (C18:1) e no linolenato (C18:3), que possui dois metilenos bis-alílicos a probabilidade dobra e a velocidade da reação é de 80 vezes (KNOTHE; RAZON, 2017).…”

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O biodiesel e as fontes de energia: contexto, química e tecnologia

Mazzini Fontoura,

Santos,

Volpatto Marques

2023

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Vegetable tannins-based additive as antioxidant for biodiesel

Cited by 14 publications

References 51 publications

Potential application of supercritical extract of pomegranate peel as bio‐antioxidant for biodiesel

Potential application of supercritical extract of pomegranate peel as bio‐antioxidant for biodiesel

Vineyard Pruning Extracts as Natural Antioxidants for Biodiesel Stability: Experimental Tests and Preliminary Life Cycle Assessment

O biodiesel e as fontes de energia: contexto, química e tecnologia

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