This paper presents the values of viscosity (η) and density (ρ) binary blends sunflower biodiesel + diesel fish oil over entire range proportion at several temperatures. Temperatures (293.15, 313.15, 333.15, 353.15, 373.15) K atmospheric pressure were studied. Excess volumes (VE) deviations viscosities (Δη) have been calculated from experimental data. These thermodynamic properties are essential in understanding intermolecular interactions between different molecules biodiesel, it is...

This work presents density (ρ) and viscosity (μ) data correlations of binary ternary blends containing soybean oil, biodiesel, petroleum diesel. The were obtained for different composition ranges, in a mass fraction (w) an interval 0.100 to 0.900. Additionally, taken by random range, at T = (293.15, 313.15, 333.15, 353.15, 373.15) K, atmospheric pressure. experimental compared predictive models based on group contribution method. Density correlated temperature equation (T w, as independent...

A new group contribution method based on GCVOL model developed by Elbro et al. in 1991 [Elbro, H. S.; Fredenslund, A.; Rasmussen, P. Ind. Chem. Eng. Res. 1991, 30, 2576–2582] is proposed for the estimation of ionic liquids density over a wide range temperature and pressure. total 102 groups were introduced to already 60 existing revised 2003 Ihmels Gmehling [Ihmels, E. C.; Gmehling, J. 2003, 42, 408–412]. These collection data from literature. The databank contains 864 different liquids,...

Viscosities of four binaries mixtures [soybean biodiesel + diesel oil (or n-hexadecane) and coconut n-hexadecane)] have been determined at T = (293.15, 313.15, 333.15, 353.15, 373.15) K atmospheric pressure over the entire composition range. Experimental data were fitted to Andrade equation adjustable parameters standard deviations between experimental calculated values estimated. From data, viscosity deviations, <img src="/img/revistas/bjce/v29n3/21e02.jpg" alt="" align="absmiddle" />, by...

A comprehensive study regarding the estimation of normal boiling points, critical temperatures, pressures, and acentric factors biodiesel-related esters is presented. Such properties are crucial for simulations chemical processes involving biodiesel. Although reliable experimental data available some esters, their determination all existing biodiesel components an expensive cumbersome task. In view that, this work aimed to investigate performance group contribution corresponding state models...

In this work, different methods capable of estimating some properties fatty acid methyl esters (FAMES) and ethyl (FAEES) have been evaluated. The results for Tb indicated that the Constantinou Gani Marrero should be applied FAMES FAEES, respectively. evaluation critical acentric factor was performed by comparisons between experimental values output Racket–Soave equation. packages FAMES, hydroxy-esters. For volume estimations, method Pardillo used any alkyl ester present in biodiesel. Three...

Several models based on the Group Contribution concept and Corresponding States Principle were reviewed for estimation of vapor pressures enthalpies vaporization fatty acid methyl ethyl esters commonly occurring in biodiesel. The accuracy each model was tested by comparing its output values to experimental data obtained from literature. For pressures, number occurrences where methods failed completely have also been analyzed. Efforts made identify best method property it observed that...

During the biodiesel production process, generally, two purification steps are performed. The first is a settling process in order to remove main byproduct (glycerol). Nevertheless, this simple stage insufficient achieve purity levels required for commercial specifications. Second, water washing used an excess of alcohol and other contaminants. Given importance equilibrium data operation optimization liquid–liquid extraction unit operation, study (LLE) methylic cottonseed + methanol ethylic...

The formation of emulsions is recognized to be a challenging problem during crude oil production and processing. Emulsion stability interfacial properties were investigated in this work for paraffinic modified Brazilian oils. Crude modifications made by the addition two different non-endogenous paraffins, n-hexadecane commercial pool (melting point range 53–57 °C), heavy oil, here, named P1, based on asphaltene destabilization results previously published (Romero Yanes, J. F.; Feitosa, F....

In Part I of this series articles, predictive models capable estimating vapor pressures and enthalpies vaporization biodiesel-related esters have been reviewed. study, we propose component-specific parameters for classic pressure correlations. First, the previously collected database was evaluated used in regression Antoine coefficients all compounds. Then, a constrained methodology employed to generate extrapolatable Wagner whose experimental critical properties were available. Finally,...

Eight well-known group contribution models capable of estimating the density ionic liquids have been examined to provide recommendations for their application in process engineering. The were carefully evaluated using a methodology based on three main criteria: accuracy, flexibility functional groups, and ability describe great variety cations anions available our data bank. As reference all analyses, we took 17 663 experimental points 201 different grouped into 9 cation families. These...

A densidade é uma propriedade volumétrica relevante para a engenharia de projeto e processos, além ser utilizada em correlações outras propriedades, tais como número cetano viscosidade. Dados experimentais foram coletados numa faixa temperatura 20 70 °C os seguintes biodieseis metílicos etílicos: soja, babaçu, milho algodão. Três versões do modelo GCVOL utilizadas na predição das densidades. Para metílicos, modelos GCVOL-Original GCVOL-OL-60 apresentaram valores desvio relativo médio (ARD)...

ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTORIGINAL ARTICLEThis notice is a correctionCorrection to "Viscosities and Densities of Ternary Blends Diesel + Soybean Biodiesel Oil"Carlos A. Nogueira, Jr., Frederico R. Carmo, Diego F. Santiago, Victor M. Fabiano N. Fernandes, Rilvia S. Santiago-Aguiar, Hosiberto B. de Sant'Ana*Cite this: J. Chem. Eng. Data 2015, 60, 11, 3439Publication Date (Web):November 12, 2015Publication History Published online12 November 2015Published inissue...

ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionORIGINAL ARTICLEThis notice is a correctionCorrection to “Excess Volumes and Deviations of Viscosities Binary Blends Sunflower Biodiesel + Diesel Fish Oil at Various Temperatures”Rodrigo C. Parente, Carlos A. Nogueira, Jr., Frederico R. Carmo, Larissa P. Lima, Fabiano N. Fernandes, Rilvia S. Santiago-Aguiar, Hosiberto B. de Sant’Ana*Cite this: J. Chem. Eng. Data 2015, 60, 11, 3440Publication Date (Web):November 12, 2015Publication History...