Thermophysical properties of castor oil (Ricinus communis L.) biodiesel and its blends

Gökdoğan, Osman; Eryılmaz, Tanzer; Yeşilyurt, Murat Kadir

doi:10.29047/01225383.29

Cited by 24 publications

(21 citation statements)

References 50 publications

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“…Another possibility, which is barely studied at present, is that Castor oil can be employed in its pure form blending with fossil diesel [40][41][42]. Castor oil exhibits, in fact, advantageous rheological properties for being employed directly as biofuel, such as high solubility in very diverse organic compounds, compatibility with polar liquids of low viscosity, such as alcohols; high values of Cetane Index (81.1) and Flammability Point (229 • C); low cloud point −10 to −18 • C, (−23 • C in FAME), and crystallization (pour point) −30 • C (−45 • C in FAME), which allow its use in motor oil high performance, as a lubricant and in hydraulic braking systems [34,43].…”

Section: Resultsmentioning

confidence: 99%

Synthesis, Performance and Emission Quality Assessment of Ecodiesel from Castor Oil in Diesel/Biofuel/Alcohol Triple Blends in a Diesel Engine

Hurtado

Posadillo²,

Luna

et al. 2019

Catalysts

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This research aims to promote the use of second-generation biofuels based mainly on Castor oil, which is not adequate for food use, and Sunflower oil as a standard reference for recycled oils. They have been applied in the production of Ecodiesel, a biofuel that integrates glycerol as monoglyceride, employing sodium methoxide as homogeneous catalyst and ethanol as solvent, but operating in milder conditions than in the synthesis of conventional biodiesel in order to obtain a kinetic control of the selective transesterification. The behavior of biofuels has been evaluated in a conventional diesel engine, operating as an electricity generator. The contamination degree was also evaluated from the opacity values of the generated smokes. The different biofuels here studied have practically no differences in the behavior with respect to the power generated, although a small increase in the fuel consumption was obtained in some cases. However, with the biofuels employed, a significant reduction, up to 40%, in the emission of pollutants is obtained, mainly with the blend diesel/castor oil/alcohol. Besides, it is found that pure Castor oil can be employed directly as biofuel in triple blends diesel/biofuel/alcohol, exhibiting results that are very close to those obtained using biodiesel or Ecodiesel.

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Section: Resultsmentioning

confidence: 99%

Synthesis, Performance and Emission Quality Assessment of Ecodiesel from Castor Oil in Diesel/Biofuel/Alcohol Triple Blends in a Diesel Engine

Hurtado

Posadillo²,

Luna

et al. 2019

Catalysts

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“…The viscosity was measured with a viscometer. The cetane number of the blend fuels was calculated using the empirical formula according to Kay's mixing rule , as shown in . The results are listed in Table .

CN = {CN}_{b} \times ω_{b} + {CN}_{d} \times ω_{d}

where CN is the cetane number of the blend, CN b and CN d are the cetane number of the biodiesel and diesel, respectively, and ω b and ω d are the blend ratios of biodiesel and diesel, respectively.…”

Section: Fuel Properties and Sample Collectionmentioning

confidence: 99%

“…The viscosity was measured with a viscometer. The cetane number of the blend fuels was calculated using the empirical formula according to Kay's mixing rule [24][25][26], as shown in formula 1. The results are listed in Table 1.…”

Section: Fuel Propertiesmentioning

confidence: 99%

Study on the Structure Characteristics of Diesel Engine Particulates Based on Small‐Angle X‐Ray Scattering

Zhong

Liu

2019

Env Prog and Sustain Energy

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In this article, the particulates formed by the combustion of diesel, 20% and 50% biodiesel blended in diesel (denoted as B20 and B50, respectively), and biodiesel were collected. The micromorphologies of the particulates were observed by scanning electron microscopy. Furthermore, the small‐angle X‐ray scattering technique was used to analyze the gyration radius, size distribution, interfacial characteristics, and fractal characteristics of the particulates. The results show that the size of the particulates formed by combustion of the fuels was concentrated between 10 and 35 nm and obeyed a Gaussian distribution. Moreover, the addition of biodiesel to diesel led to smaller particulate sizes for the biodiesel/diesel blend: the mean radii of the particulates for diesel, B20, B50, and biodiesel were 11.5 nm, 10.8 nm, 10.2 nm, and 9.7 nm, respectively. In addition, an interfacial layer was observed between the particulates, and the average interfacial thickness of the particulates was between 1.54 and 1.89 nm. The mass fractal dimension of the particulates was between 0.2 and 2.5, and the surface fractal dimension of the particulates was between 2.1 and 2.9. The addition of biodiesel to diesel resulted in a more compact particulate structure and the rougher surface. © 2019 American Institute of Chemical Engineers Environ Prog, 38:e13146, 2019

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“…Para as medidas de massa específica, foi obtido além do perfil semelhante um desvio pequeno dos dados presentes na literatura, como pode ser visto na Figura 4. Os desvios máximos foram da ordem de 0,7% comparando com os dados presentes em Schuele et al (1957) e Gokdogan et al (2015).…”

Section: Resultsunclassified

Caracterização Do Óleo De Rícino Por Meio Da Técnica Ultrassônica

Alvarez¹,

Fileti²,

Silva³

et al. 2019

Blucher Chemical Engineering Proceedings

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RESUMO-Propriedades físico-químicas e acústicas de óleo de rícino comercial foram adequadamente estimadas por meio da técnica ultrassônica, utilizando uma célula construída no Laboratório de Engenharia de Sistemas Químicos da Faculdade de Engenharia Química da Unicamp. As propriedades foram calculadas para várias temperaturas. Foram obtidos desvios da ordem de 0,7% para o cálculo da massa específica. Evidenciou-se que a célula ultrassônica construída e o processamento do sinal utilizado apresentaram sensibilidade para captar as variações das propriedades com a temperatura e estimar de maneira satisfatória a atenuação acústica, a velocidade do som no meio, e a massa específica do óleo de rícino.

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Thermophysical properties of castor oil (Ricinus communis L.) biodiesel and its blends

Cited by 24 publications

References 50 publications

Synthesis, Performance and Emission Quality Assessment of Ecodiesel from Castor Oil in Diesel/Biofuel/Alcohol Triple Blends in a Diesel Engine

Synthesis, Performance and Emission Quality Assessment of Ecodiesel from Castor Oil in Diesel/Biofuel/Alcohol Triple Blends in a Diesel Engine

Study on the Structure Characteristics of Diesel Engine Particulates Based on Small‐Angle X‐Ray Scattering

Caracterização Do Óleo De Rícino Por Meio Da Técnica Ultrassônica

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