Oxidative stability of biodiesel from soybean oil: Comparison between synthetic and natural antioxidants

Buosi, Gabriela Menegon; Silva, Elisângela Tavares da; Spacino, Kelly Roberta; Silva, Lívia Ramazzoti Chanan; Ferreira, Bruna Aparecida Denobi; Borsato, Dionísio

doi:10.1016/j.fuel.2016.05.056

Cited by 60 publications

(25 citation statements)

References 20 publications

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“…Franca et al 39 studied oxidation stability of commercial biodiesel samples (cotton/soy/tallow) using Moringaoleífera Lam extract as natural antioxidant, which increases the oxidation stability of samples at higher concentration of 4000 ppm for 150 days storage when stored at 15 C. Further, they mentioned that the BHT antioxidant shows better results than natural antioxidant. In a similar study, Bousi et al 40 studied the oxidation stability of soybean oil using synthetic (TBHQ, BHA and BHT) and natural antioxidants (extracts of rosemary, oregano and basil). Their comparative studies revealed that the natural antioxidants tend to show higher efficiency as compared to BHT and BHA, but TBHQ showed higher efficiency than natural antioxidants.…”

Section: Long-term Storage Oxidation Stability Of Dwsme Bvme and Bmmementioning

confidence: 99%

Parametric studies on the storage stability and aging effect of biodiesel treated with Eucalyptus oil as a cost‐effective green‐antioxidant additive

et al. 2020

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Oxidation stability is one of the most significant fuel quality standards for biodiesel and mainly distresses the stability of biodiesel. Therefore, the present work aims to report the Eucalyptus oil (EO) as a natural green antioxidant additive to evaluate the oxidation stability of biodiesel produced from dairy waste scum, Bauhinia variegata and Butea monosperma oil. The obtained results have also been compared with the conventional synthetic antioxidant, butylated hydroxy toluene (BHT). The oxidation stability of the biodiesel treated with these additives was evaluated using the professional biodiesel Rancimat instrument. Further, the fuel properties kinematic viscosity and acid value were measured during the storage period. The obtained results showed an increase in the induction period in the biodiesel sample treated with EO, indicating a protective effect and inhibiting the oxidation initiation step. As a result, the oxidation stability of dairy waste scum methyl ester (DWSME), B variegata methyl ester (BVME) and B monosperma methyl ester (BMME) was found to be~10,~8 and~8 hours, respectively, during 90 days storage when the natural antioxidant EO with a concentration of 4000 ppm was used and these obtained values were in the limit of EN 14214 standard. Interestingly, these values were found to be on par with the oxidation stability of DWSME (~11 hours), BVME (~9 hours) and BMME (~9 hours), when the synthetic antioxidant BHT was used with a concentration of 3000 ppm during the 90 days storage. Although the addition of EO as antioxidant resulted in increase in kinematic viscosity and acid value of the biodiesel samples, those values wellfall in the ASTM 6751 standard limit. On the other hand, synthetic antioxidant BHT showed enhanced results as compared to the EO. However, the effectiveness of the proposed natural antioxidant additive (EO) is on par with the synthetic antioxidant (BHT), which can be replaced for cost-effectiveness, non-toxic and safer consumption of biodiesel as compared to synthetic antioxidant-treated biodiesel.

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Section: Long-term Storage Oxidation Stability Of Dwsme Bvme and Bmmementioning

confidence: 99%

Parametric studies on the storage stability and aging effect of biodiesel treated with Eucalyptus oil as a cost‐effective green‐antioxidant additive

et al. 2020

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“…The user should expect this vegetal oil to change its viscosity, oxidation stability, and polymerization during exploitation in a more intense way than mineral and synthetic lubricants. Chemical modification of soybean oil and/or the use of antioxidants [23,[34][35][36] could positively influence, but these will increase the cost of lubricant.…”

Section: Swot and Market Analysismentioning

confidence: 99%

Tribological Behavior of Soybean Oil

Georgescu¹,

Deleanu²,

Cristea³

2019

Soybean - Biomass, Yield and Productivity

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This chapter presents experimental data in the favor of using soybean oil, additivated or not, as lubricants, the market share of the soybean oil on the lubricants' market, a SWOT analysis for better configuring the tribological characteristics of the soybean oil and tribological parameters as friction coefficient, wear scar diameter, wear rate of wear scar diameter, etc. and their dependence on testing regime (load and speed). Also, the influence of temperature, shear rate, and oxidation parameters on the soybean oil viscosity is discussed.

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“…Natural and synthetic compounds may be used, including alkylphenols, such as butylated hydroxytoluene (BHT), butylhydroxyanisole (BHA), unsaturated cardanol (U‐CDN) and 2,4,6‐Tri‐tert‐butylphenol/2,6‐Di‐tert‐butylphenol (IONOL), and amines, such as N , N ′‐di‐sec‐butyl‐p‐phenylenediamine (PDA) and N , N ‐diphenyl‐p‐phenylenediamine (DPD). According to literature reports, these antioxidants improve the biodiesel oxidative stability acting as chain‐breaking or hydroperoxide decomposers (Alberici et al, 2010; Buosi et al, 2016; Kleinberg et al, 2019; Maia et al, 2015; Nogales‐Delgado et al, 2020; Xin et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Babassu Biodiesel Doped with Antioxidants: Assessment of Thermo‐Oxidative Stability by Borchardt and Daniels Method

Figueredo

Luna

Cavalcante

et al. 2020

J Americ Oil Chem Soc

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In this study, three antioxidants namely N,N′‐di‐sec‐butyl‐p‐phenylenediamine (PDA), 2,4,6‐Tri‐tert‐butylphenol/2,6‐Di‐tert‐butylphenol (IONOL), and unsaturated cardanol (U‐CDN) were added to babassu biodiesel (BB) at a concentration of 100 mg kg−1 to improve its oxidative stability. Differential Scanning Calorimetry (DSC) was used to evaluate the oxidative stability of the samples using synthetic air atmosphere and two temperatures (25 and 110 °C) instead of the conventional Rancimat method. The kinetic parameters were calculated according to Borchardt and Daniels method (ASTM E2041). All doped samples showed higher thermo‐oxidative stability when compared to pure babassu biodiesel with increasing activation energies of 66.5% for PDA, 19.4% for IONOL, and 3.9% for U‐CDN. At 25 °C, the babassu biodiesel showed a high oxidation reaction rate of 1.76 × 10−15 min−1. For the doped samples at the same temperature, that rate was reduced by a factor of 2, 200, and 3 × 108 times for U‐CDN, IONOL, and PDA, respectively. At 110 °C, the BB and the BB + U‐CDN samples showed high reaction rates, whereas the formulations with IONOL and PDA had rates reduced by 10 and 7.4 × 103 times, respectively. The thermal data showed R2 values higher than 0.99. All results confirmed the action of the antioxidants in retarding oxidation reactions in biodiesel. DSC is a promising alternative method for the determination of oxidative stability of biodiesel and its formulations with antioxidants.

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Oxidative stability of biodiesel from soybean oil: Comparison between synthetic and natural antioxidants

Cited by 60 publications

References 20 publications

Parametric studies on the storage stability and aging effect of biodiesel treated with Eucalyptus oil as a cost‐effective green‐antioxidant additive

Parametric studies on the storage stability and aging effect of biodiesel treated with Eucalyptus oil as a cost‐effective green‐antioxidant additive

Tribological Behavior of Soybean Oil

Babassu Biodiesel Doped with Antioxidants: Assessment of Thermo‐Oxidative Stability by Borchardt and Daniels Method

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