A new spectrophotometric method for determination of biodiesel content in biodiesel/diesel blends

Silva, Marcos A. A.; Correa, Renan A.; Tavares, Maria Gizelda de Oliveira; Filho, Nelson Roberto Antoniosi

doi:10.1016/j.fuel.2014.10.048

Cited by 30 publications

(23 citation statements)

References 15 publications

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“…The conversion of esters into hydroxamates by their reaction with hydroxylamine [27][28][29], forming complexes of a red to violet color caused by the reaction with Fe3 + , has been used to confirm esters in organic analysis procedures. Figure 1 shows the reaction by which this complex is formed.…”

Section: In a Diesel-biodiesel Blendmentioning

confidence: 99%

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Fuel Quality Monitoring by Color Detection

Santos¹,

Silva²,

Borges³

et al. 2020

Color Detection

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The quality of automotive fuels-gasoline, diesel, biodiesel, and ethanol-is discussed in the light of their specifications in different countries and regions and in terms of their adulteration, which has such a prejudicial effect on the production chain, distribution chain, tax revenues, the environment, and end consumers. Different ways of adulterating automotive fuels are analyzed, as are the procedures for their detection. Several analytical methods for monitoring quality and detecting adulteration have been addressed in the literature, emphasizing the determination of properties such as density, distillation curve, octane rating, vapor pressure, etc., by means of physicochemical methods and chromatographic and spectrographic techniques, to the detriment of colorimetric methods. This chapter looks at colorimetric techniques designed for quality monitoring and the detection of adulteration in fuels, especially simple, quick, low-cost procedures with potential to be used in the field.

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Section: In a Diesel-biodiesel Blendmentioning

confidence: 99%

“…The linearity, limit of detection, limit of quantification, accuracy, selectivity, and specificity results indicate that the proposed method is adequate for analyses of biodiesel in diesel-biodiesel blends. A simplified method was proposed for qualitative analyses for use at filling stations [29,31].…”

Section: In a Diesel-biodiesel Blendmentioning

confidence: 99%

Fuel Quality Monitoring by Color Detection

Santos¹,

Silva²,

Borges³

et al. 2020

Color Detection

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“…Detailed knowledge of the impact and behaviour of different biodiesel or diesel/biodiesel blends on wear, friction, and long term durability of parts is useful and of importance for the materials and coating selection [14]. Furthermore, the selection of biodiesel or an improvement of its quality and specific recommendations for changing biodiesel composition before additive addition may be of general interest.…”

Section: Journal Of Applied Chemistrymentioning

confidence: 99%

“…A major advantage of such transesterification routes is the possibility of localised fuel production, because processes typically operate at temperatures below 150 ∘ C that are more suitable for small scale production. Lee and Wilson [8] as well as Silva et al [14] point to the fact that fuel quality is highly dependent on oil source. That is, chain length of the FAME molecules is influencing fuel properties such as cloud and pour points or long term stability against oxidation.…”

Section: Introductionmentioning

confidence: 99%

“…Commercial biodiesel is synthesised by liquid base catalysed transesterification of C 10 -C 20 tricylglyceride (TAG) components of lipids with C 1 -C 2 alcohols into fatty acid methyl esters (FAMEs) [9][10][11][12][13][14]. The acyl group chain of the esters produced normally ranges from 12 to 24 carbon atoms and the number of unsaturated bonds is up to 3.…”

Section: Introductionmentioning

confidence: 99%

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Tribological Performance of Si-Doped Hydrogenated Diamond-Like Carbon Coatings in Different Biodiesel

Dorner-Reisel

Kavaklioglu

Svoboda

et al. 2016

Journal of Applied Chemistry

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In this paper, two kinds of different biodiesel were tested in terms of their impact on wear resistance of Si-DLC coated 100Cr6 flat worn by an oscillating 100Cr6 ball. The knowledge about the tribological behaviour of different types of biodiesel is rare. Rape and soybean are two of the most common natural sources for biodiesel production. Also, if the quality of biodiesel seems to be similar and, according to the demands, biodiesel from different natural origin could affect changes in the tribological behaviour. Although, soybean methyl ester (SME) gives the best results at room temperature wear tests, 150 ∘ C SME reaches wear rates of Si-DLC flat against 100Cr6 ball almost double as high as rapeseed methyl ester (RME). It is evident that, with increasing fraction of oxidation stabilizer C 23 H 32 O 2 , the wear rate increases. For silicon doped hydrogenated diamond-like carbon is especially suitable, for use in biodiesels, where certain fraction of humidity, dissociated water, or polar functional groups may present.

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