Prediction of vapor pressure and heats of vaporization of edible oil/fat compounds by group contribution

Publication: Research - peer-reviewJournal article – Annual report year: 2013

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Prediction of vapor pressure and heats of vaporization of edible oil/fat compounds by group contribution. / Ceriani, Roberta; Gani, Rafiqul; Liu, Y.A.

In: Fluid Phase Equilibria, Vol. 337, 2013, p. 53-59.

Publication: Research - peer-reviewJournal article – Annual report year: 2013

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Ceriani, Roberta; Gani, Rafiqul; Liu, Y.A. / Prediction of vapor pressure and heats of vaporization of edible oil/fat compounds by group contribution.

In: Fluid Phase Equilibria, Vol. 337, 2013, p. 53-59.

Publication: Research - peer-reviewJournal article – Annual report year: 2013

Bibtex

@article{f6e1e87667c343318e29235c8774d0b8,
title = "Prediction of vapor pressure and heats of vaporization of edible oil/fat compounds by group contribution",
keywords = "Vapor pressure, Heat of vaporization, Fatty compounds, Biodiesel, Organic liquids, Group contributions",
publisher = "Elsevier BV",
author = "Roberta Ceriani and Rafiqul Gani and Y.A. Liu",
year = "2013",
doi = "10.1016/j.fluid.2012.09.039",
volume = "337",
pages = "53--59",
journal = "Fluid Phase Equilibria",
issn = "0378-3812",

}

RIS

TY - JOUR

T1 - Prediction of vapor pressure and heats of vaporization of edible oil/fat compounds by group contribution

A1 - Ceriani,Roberta

A1 - Gani,Rafiqul

A1 - Liu,Y.A.

AU - Ceriani,Roberta

AU - Gani,Rafiqul

AU - Liu,Y.A.

PB - Elsevier BV

PY - 2013

Y1 - 2013

N2 - In the present work, a group contribution method is proposed for the estimation of vapor pressures and heats of vaporization of organic liquids found in edible fat/oil and biofuel industries as a function of temperature. The regression of group contribution parameters was based on an extensive databank (2036 values) composed by fatty compounds, i.e., fatty acids, methyl-, ethyl-, propyl- and butyl- esters, fatty alcohols, tri-, di- and monoacylglycerols and hydrocarbons. This new methodology gives improved predictions when compared to a prior group contribution equation (Ceriani and Meirelles, 2004) due to the inclusion of new experimental data for fatty esters and partial acylglycerols (besides hydrocarbons) and critical points, and a new temperature dependency. Heats of vaporization are properly described as a function of reduced temperature up to the critical condition.

AB - In the present work, a group contribution method is proposed for the estimation of vapor pressures and heats of vaporization of organic liquids found in edible fat/oil and biofuel industries as a function of temperature. The regression of group contribution parameters was based on an extensive databank (2036 values) composed by fatty compounds, i.e., fatty acids, methyl-, ethyl-, propyl- and butyl- esters, fatty alcohols, tri-, di- and monoacylglycerols and hydrocarbons. This new methodology gives improved predictions when compared to a prior group contribution equation (Ceriani and Meirelles, 2004) due to the inclusion of new experimental data for fatty esters and partial acylglycerols (besides hydrocarbons) and critical points, and a new temperature dependency. Heats of vaporization are properly described as a function of reduced temperature up to the critical condition.

KW - Vapor pressure

KW - Heat of vaporization

KW - Fatty compounds

KW - Biodiesel

KW - Organic liquids

KW - Group contributions

U2 - 10.1016/j.fluid.2012.09.039

DO - 10.1016/j.fluid.2012.09.039

JO - Fluid Phase Equilibria

JF - Fluid Phase Equilibria

SN - 0378-3812

VL - 337

SP - 53

EP - 59

ER -