Variation of density of diesel and biodiesel mixtures in three different temperature ranges

Tsanaktsidis, Constantinos; Spinthiropoulos, Konstantinos; Tzilantonis, G. T.; Katsaros, Christos

doi:10.1080/10916466.2016.1190751

Cited by 4 publications

(5 citation statements)

References 11 publications

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“…Density is a very important parameter. It plays a significant role in the properties and characteristics of fuel quality in determining the energy of the biodiesel [62].…”

Section: Characterization Of Mongongo Nut Oil and Methyl Estersmentioning

confidence: 99%

Comparison of CaO-NPs and Chicken Eggshell-Derived CaO in the Production of Biodiesel from Schinziophyton rautanenii (Mongongo) Nut Oil

Mmusi

Odisitse

Nareetsile

2021

Journal of Chemistry

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The ever-increasing population growth and economic developments have heightened demand for energy. This has resulted in depletion and ever-rising prices of petroleum diesel, thus increasing environmental degradation. These complications have motivated this study for the search of an alternative eco-friendly and renewable source of energy such as biodiesel. Biodiesel has been found to be a potential alternative fuel for diesel. Biodiesel was produced by transesterification reaction of Schinziophyton rautanenii (mongongo) nut oil in the presence of a base heterogeneous catalyst: CaO derived from eggshell ash and synthesised CaO-nanoparticles (CaO-NPs). The catalysts were calcined at a temperature of 800°C for 3 h and characterized by scanning electron microscope-energy dispersive X-ray (SEM-EDX) where both catalysts showed agglomerated particles and high elemental composition of Ca and O. Powder X-ray diffraction (XRD) showed that CaO was present in both catalysts, and the average crystalline size obtained was 42 and 50 nm for CaO-NPs and eggshell ash, respectively. Fourier transmission infrared (FTIR) spectrometer showed absorption bands of CaO in both catalysts which were at 875 and 713.46 cm−1 for CaO-NPs and eggshell ash, respectively. The analysis of mongongo nut oil (MNO) and mongongo methyl esters (MMEs) was done according to the European biodiesel specification (EN 1421) and American Society for Testing and Materials (ASTM D675). Statistically, there was no significant difference between CaO-NPs and eggshell in terms of optimum yield ( P > 0.05 ) using a sample t-test. However, in terms of catalyst loading, the eggshell was a better catalyst as it required a low catalyst load to obtain an optimum yield of 83% at 6 wt.% compared to CaO-NPs with an optimum yield of 85% at 12 wt.%. The reactions were all performed at constant reaction conditions of 9 : 1 methanol to oil ratio, 3 h reaction time, and 65°C reaction temperature.

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“…Density is a very important parameter. It plays a significant role in the properties and characteristics of fuel quality in determining the energy of the biodiesel [62].…”

Section: Characterization Of Mongongo Nut Oil and Methyl Estersmentioning

confidence: 99%

Comparison of CaO-NPs and Chicken Eggshell-Derived CaO in the Production of Biodiesel from Schinziophyton rautanenii (Mongongo) Nut Oil

Mmusi

Odisitse

Nareetsile

2021

Journal of Chemistry

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“…Throughout our experiments we studied the variation of humidity of Diesel fuel with Time [12]; the variation of kinematic viscosity in blends of Diesel fuel with Biodiesel [4]; the variation of humidity and reduction conductivity of JP8 (F34) with time [13]; the variation of heat of combustion in blends of Diesel fuel with Biodiesel [14]; the variation of density in blends of Diesel fuel with Biodiesel [15]; the variation of conductivity in blends of Diesel fuel with Biodiesel [8]; the contribution of different kinds of biodiesel on the conductivity and density of blends of diesel and biodiesel fuels (animal and vegetable) [16]; the variation of humidity of conventional diesel with time [17]; the variation of density of diesel-biodiesel blends across the scale (0-100)% by adding each time 2% biodiesel and then measuring the density of 3 different temperatures (5, 15, 25) C [9]. The results of our research are based on tables and figures.…”

Section: Methodsmentioning

confidence: 99%

“…In other words with the use of econometrics methods they to prove that there is indeed strong rates volatility and correlation between physicochemical properties of oils with their mixes. This relationship can be represented by mathematical equations after the application of linear regression [9,10].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover based on this procedure we are able to come to secure conclusions when the values of density according to the mixes where measured between 5 and 25 C. If we overcome these limits then we will face autocorrelation and heteroskedasticity problems. In this case our model will have no predictive ability and will essentially reject as unacceptable [9].…”

mentioning

confidence: 99%

“…In order to verify the existence and the type of correlation between the blends pure Diesel and Biodiesel and the Density we decided to use the Regression Analysis as the best method that would support this study. The preliminary statistical analysis of the Density (Y) with respect to the fuel volume fractions (X) (fuels) series had directly showed that the relation that connects each variable were linear for its temperature meaning 5, 15 and 25 C [9].…”

mentioning

confidence: 99%

See 2 more Smart Citations

Implementation of Basic Principles of Econometric Analysis in Petroleum Technology: A Review of the Econometric Evidence

Tsanaktsidis¹,

Spinthiropoulos²

2019

Petroleum Chemicals - Recent Insight

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In the present study we give the opportunity to understand the physicochemical parameters of distilling petroleum products applying the basic principles of econometric analysis. The quality of the different fuels is expressed by a series of physical, chemical or other characteristics. The connection between production process and quality of fuel is crucial in the field of petroleum technology. It is remarkable that the used method of the regression analysis perfectly illustrates the relationships between the variables in all applied models. Econometrics is one the best methods to study the variation of the physicochemical properties of the oil. The use of econometrics methods in petroleum chemistry turned out to be useful tool in order to prove that there is indeed strong rates volatility and correlation between physicochemical properties of oils with their mixes. In Petroleum Industry the most common types of Diesel fuels are the biodiesel, biomass to liquid or gas to liquid Diesel. The results of our research can be an important tool for the development of software that can anticipate changes of physicochemical properties of petroleum distillate products, taking into account specific parameters.

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Refractive index of biodiesel-diesel blends from effective polarizability and density

Colmán

Sorichetti

Romano

2018

Fuel

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Variation of density of diesel and biodiesel mixtures in three different temperature ranges

Cited by 4 publications

References 11 publications

Comparison of CaO-NPs and Chicken Eggshell-Derived CaO in the Production of Biodiesel from Schinziophyton rautanenii (Mongongo) Nut Oil

Comparison of CaO-NPs and Chicken Eggshell-Derived CaO in the Production of Biodiesel from Schinziophyton rautanenii (Mongongo) Nut Oil

Implementation of Basic Principles of Econometric Analysis in Petroleum Technology: A Review of the Econometric Evidence

Refractive index of biodiesel-diesel blends from effective polarizability and density

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