Comparison of various methods for the estimation of vapor pressure of fatty acid methyl and ethyl esters (FAAE’s)

Saxena, Parag; Patel, Jitesh C.; Joshipura, Milind

doi:10.1016/j.fuel.2016.06.017

Cited by 6 publications

(7 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Other authors, applying the same model to a relatively small FAEE database, report deviations between 16.35% and 26.42%, depending on chain lengths . Another paper states 48.19% deviation for this approach, using mainly low-pressure data in the regions I–III …”

Section: Estimation Of Pure-component Propertiesmentioning

confidence: 96%

“…45 Another paper states 48.19% deviation for this approach, using mainly low-pressure data in the regions I−III. 46 3.5. Liquid Density.…”

Section: Estimation Of Pure-component Propertiesmentioning

confidence: 99%

“…Wang et al proposed a new group-contribution method based on the Riedel equation for vapor pressures of fatty acid methyl, ethyl, propyl, and butyl esters with a special ester group to distinguish between the esters . Saxena et al compared, among others, a specialized GC approach, the Peng–Robinson equation of state and corresponding-state approaches for vapor pressure prediction based on a set of 55 FAEE data points . Evangelista et al reviewed GC and corresponding-state approaches for vapor pressures and enthalpies of evaporation, distinguishing between FAME and FAEE. , Caldeira et al reviewed prediction models for biodiesel-related components, comprising viscosity, density, and fuel-related properties in view of quantifying the range of variation of model results when considering the uncertainty in the fatty acid composition .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Estimation of Pure-Component Properties of Biodiesel-Related Components: Fatty Acid Ethyl Esters

Wallek

Knöbelreiter

Rarey

2018

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Common, nonspecialized group-contribution and corresponding-state models for the estimation of normal boiling point, critical data, vapor pressure, liquid density, dynamic viscosity, and surface tension are reviewed in view of their application to fatty acid ethyl esters to provide guidelines for practical application of these models in process engineering. As a result, these properties can be estimated in a satisfactory manner when choosing an appropriate model, showing minimum average absolute mean deviations of the normal boiling point below 5 K (3.4 K for saturated and 4.2 K for unsaturated components), those of the critical temperature below 3 K (2.3 K for saturated and 1.2 K for unsaturated components), those of the critical pressure in the region of 50 kPa (54 kPa for saturated and 2.1 kPa for unsaturated components), and minimum relative mean deviations of saturation pressures from 2% around the normal boiling point to 15% at extremely low pressures, those of liquid density below 1%, those of viscosity at a maximum of 7%, and those of surface tension around 2.4%.

show abstract

Section: Estimation Of Pure-component Propertiesmentioning

confidence: 96%

“…45 Another paper states 48.19% deviation for this approach, using mainly low-pressure data in the regions I−III. 46 3.5. Liquid Density.…”

Section: Estimation Of Pure-component Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Estimation of Pure-Component Properties of Biodiesel-Related Components: Fatty Acid Ethyl Esters

Wallek

Knöbelreiter

Rarey

2018

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…Finally, they concluded that this generalized method was the most reliable among the predictive ones and should be used in the absence of the correlations. It is noteworthy that, unlike Wallek et al, Saxena et al tested an old version of Ceriani’s method . Although this fact might not affect their conclusions, it is very likely that the updated model would have given better results …”

Section: Introductionmentioning

confidence: 99%

“…Saxena et al 47 have recently evaluated methods for the estimation of vapor pressure of FAMES and fatty acid ethyl esters (FAEES). They used a database containing experimental data of nine FAMES and four FAEES.…”

Section: ■ Introductionmentioning

confidence: 99%

Estimation of Vapor Pressures and Enthalpies of Vaporization of Biodiesel-Related Fatty Acid Alkyl Esters. Part 1. Evaluation of Group Contribution and Corresponding States Methods

Evangelista

Carmo

Sant’Ana

2017

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

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

show abstract

Determination of vapour pressures of FAME industrial mixtures by ebullioscopic and thermogravimetric experimental methods

Tonsi,

Zanella,

Grainca

et al. 2024

Can J Chem Eng

View full text Add to dashboard Cite

Vapour pressure (VP) is a parameter that characterizes, by principle, only pure compounds. Nevertheless, it can refer also to mixtures in order to characterize their volatility or to be inserted in technical documents. The measurement of VP for mixtures is strongly dependent on the possible variation of the composition, during experiments, due to the different volatility of the constituent compounds. It is possible to calculate the VP of the mixture starting from its composition, but different thermodynamic scenarios must be considered. Moreover, for industrial samples, possible effects due to the presence of impurities must be considered. In this work, two different experimental methods have been employed to determine VP of some acetates esters and two industrial mixtures of fatty acid methyl esters (FAME). The first method is a direct ebullioscopic method, while the second is an indirect thermogravimetric analysis (TGA). An error function was calculated to compare the experimental results of VPs obtained with the two methodologies with the theoretical ones. Ebullioscopic measures resulted suitable only for acetates esters, as FAME mixtures are characterized by VPs too low to be quantified with this technique. On the contrary, TGA methodology is more accurate for FAME than acetates. It allows the collection of a great number of VP values with a very fast analysis. This method is less accurate than others, but it can be useful for a fast screening of the FAME mixtures, also contaminated with light impurities.

show abstract

Comparison of various methods for the estimation of vapor pressure of fatty acid methyl and ethyl esters (FAAE’s)

Cited by 6 publications

References 20 publications

Estimation of Pure-Component Properties of Biodiesel-Related Components: Fatty Acid Ethyl Esters

Estimation of Pure-Component Properties of Biodiesel-Related Components: Fatty Acid Ethyl Esters

Estimation of Vapor Pressures and Enthalpies of Vaporization of Biodiesel-Related Fatty Acid Alkyl Esters. Part 1. Evaluation of Group Contribution and Corresponding States Methods

Determination of vapour pressures of FAME industrial mixtures by ebullioscopic and thermogravimetric experimental methods

Contact Info

Product

Resources

About