Physical–chemical investigation of the oxidation reaction of biodiesel during storage in contact with carbon steel and 1020 steel in the presence of natural rosemary extract

Messias, Gabriel Benassi; Chendynski, Letícia Thaís; Mantovani, Ana Carolina Gomes; Suquila, Fabio Antônio Cajamarca; Tarley, César Ricardo Teixeira; Moreira, Ivan; Borsato, Dionísio

doi:10.1080/17597269.2019.1629523

Cited by 5 publications

(3 citation statements)

References 28 publications

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“…The copper concentration in biodiesel was determined by a Shimadzu VR AA-6601F Flame Atomic Absorption Spectrometer (Kyoto, Japan) equipped with a specific cathode lamp as the radiation source, and a deuterium lamp for background correction according to Messias et al 19…”

Section: Flame Atomic Absorption Spectrometry (Faas)mentioning

confidence: 99%

“…These phenolic compounds contained in rosemary leaves are capable of stabilizing unsaturated methyl esters, acting as chelating agents of copper ions and thereby retarding the oxidative degradation of biodiesel. 17,18 Studies 15,16,19 performed with rosemary extract in biodiesel show that it can decrease the rate constant (k), consequently increasing the activation energy (E a ), slowing the reaction and disfavoring the oxidation of biodiesel.…”

Section: Introductionmentioning

confidence: 99%

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The Catalytic Action of Copper Ions and the Rosemary Extract Antioxidant Effect in the Biodiesel Oxidation Reaction and the Implication in Arrhenius Behavior

Spacino

Mantovani

Marcheafave

et al. 2020

J. Braz. Chem. Soc.

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Biodiesel contains esters in its composition which make it susceptible to oxidation. Among the factors that cause this reaction is the contamination with metal ions. In the present work, it was analyzed biodiesel samples obtained from a mixture containing 39.0% m/m soybean oil, 22.0% m/m beef tallow and 39.0% m/m poultry fat using a methyl route. Copper ions were added to the biodiesel to evaluate its catalytic action in the oxidation reaction, in the presence and absence of rosemary extract. During 192 h of assay, samples containing copper, without extract, showed shorter induction periods, higher rate constants and lower activation energy, when compared to samples containing extract, at the same assay temperature. Copper ions presented a strong catalytic action causing linearity deviations showing a super-Arrhenius behavior, while rosemary extract delayed the oxidative process and showed no linearity deviations.

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Section: Flame Atomic Absorption Spectrometry (Faas)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Catalytic Action of Copper Ions and the Rosemary Extract Antioxidant Effect in the Biodiesel Oxidation Reaction and the Implication in Arrhenius Behavior

Spacino

Mantovani

Marcheafave

et al. 2020

J. Braz. Chem. Soc.

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“…18 Jin et al (2019) stated that the carnosic acid present in rosemary is a strong antioxidant, capable of eliminating hydroxyl radicals by preventing the formation of singlet oxygen and perhydroxyl radicals that propagate the biodiesel oxidation reaction. 19 Messias et al (2018) 20 used rosemary extract to prevent biodiesel oxidation and found that even after 6 months of storage, biodiesel still had an induction period longer than 8 hours. Chendynski et al (2019) 12 studied the effect of iron ions in the biodiesel oxidative stability and found that samples containing rosemary extract presented higher induction period value and lower rate constants.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Fe3+, Fe2+, Co2+ e Cr3+ Ions in the Oxidative Stability and Kinetics of biodiesel Oxidation Reaction With and Without the Addition of Rosemary Extract

et al. 2020

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Evaluation of the influence of chromium(III) ions and protoporphyrin IX on the oxidative stability of biodiesel

Gonçales Filho,

de Toledo,

Alves

et al. 2024

J Americ Oil Chem Soc

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This study aimed to investigate the impact of porphyrin complexes with Cr3+ on the oxidative stability of biodiesel. Specifically, it focused on assessing the induction period as well as the fluorescence and FTIR spectroscopy, kinetic and thermodynamic parameters of oxidation under varying temperature conditions. The concentration of the metal added in the biodiesel samples, with and without protoporphyrin IX (PPIX), was established based on previous literature. Oxidative stability tests were carried out at 105, 110, 115, and 120°C. The Cr3+ transition metal ion exhibited low catalytic activity in biodiesel oxidation reactions, and the tests without PPIX showed lower induction period values for all temperatures. PPIX exhibited antioxidant action, delaying both the initiation and propagation stages of chain reactions responsible for the formation of free radicals, thereby enhancing the stability of the biofuel even in the presence of Cr3+, when compared to the same test without the addition of the compound. The fluorescence intensity of PPIX decreased as a function of the contact time with the metal ion, and the FTIR analysis of the biodiesel with PPIX presented the most significant variations in the spectra. The tests containing PPIX at all temperatures presented lower values of reaction rate than the control samples, while the test without PPIX with Cr3+ ion resulted in higher k in comparison to control. The activation energy values ranged from 43.36 to 106.37 kJ mol−1. The results of thermodynamic parameters indicated greater stability for biodiesel containing PPIX, with enthalpy activation (ΔH‡) and entropy activation (ΔS‡) values of 103.16 kJ mol−1 and ‐52.61 J.K−1.mol−1, respectively.

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Physical–chemical investigation of the oxidation reaction of biodiesel during storage in contact with carbon steel and 1020 steel in the presence of natural rosemary extract

Cited by 5 publications

References 28 publications

The Catalytic Action of Copper Ions and the Rosemary Extract Antioxidant Effect in the Biodiesel Oxidation Reaction and the Implication in Arrhenius Behavior

The Catalytic Action of Copper Ions and the Rosemary Extract Antioxidant Effect in the Biodiesel Oxidation Reaction and the Implication in Arrhenius Behavior

The Effect of Fe3+, Fe2+, Co2+ e Cr3+ Ions in the Oxidative Stability and Kinetics of biodiesel Oxidation Reaction With and Without the Addition of Rosemary Extract

Evaluation of the influence of chromium(III) ions and protoporphyrin IX on the oxidative stability of biodiesel

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