An empirical method for evaluating critical molar volumes

Vetere, Alessandro

doi:10.1002/aic.690220530

Cited by 12 publications

(2 citation statements)

References 7 publications

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“…Other group-contribution models by Somayajulu [62] and Reid et al [84] have also utilized the boiling point to estimate critical properties. For the critical volume, Vetere [85] and Fedors [130], respectively, have suggested the following models:…”

Section: Critical Property Modelingmentioning

confidence: 99%

Improved structure–property relationship models for prediction of critical properties

Godavarthy

Robinson

Gasem

2008

Fluid Phase Equilibria

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Section: Critical Property Modelingmentioning

confidence: 99%

Improved structure–property relationship models for prediction of critical properties

Godavarthy

Robinson

Gasem

2008

Fluid Phase Equilibria

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“…Figure30 The effect of sucrose palmitate selling price on DPV (a), DPP (b) and DCFROR (c) for sucrose palmitate production.…”

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confidence: 99%

Property estimation of palmitoylethanolamide and sucrose palmitate for process design from methyl palmitate

Wongprathed¹

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Methyl palmitate is the primary component of palm oil-based biodiesel. It is a saturated fatty acid methyl ester which has a high melting point that results in low cold flow properties of biodiesel. Besides, lack of government support may affect the revenue of biodiesel business. For that reason, the producers turn attention to using biodiesel as a raw material for the production of value-added chemicals. Initially, we selected the studied products based on the gross profit margin, production process, market demand and application. This work simulated the production of palmitoylethanolamide, sucrose palmitate and normal alkanes from methyl palmitate using Aspen Plus V11. Because palmitoylethanolamide and sucrose palmitate were not available in Aspen Plus’s databases, so we need to estimate the property parameters required in the process simulation, including parameters for mass and energy balance and parameters for thermodynamic reference state. Then, the economic analysis was performed. This study founded that the production of sucrose palmitate was the most profitable, followed by the production of palmitoylethanolamide and normal alkanes. This research indicated that the production of value-added chemicals from methyl palmitate was an attractive alternative to biodiesel producers because these production processes could be profitable even without government support.

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Critical Properties of Hydrocarbon Systems

Korsten¹

1998

Chem. Eng. Technol.

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The main objective of this article is to provide a model for predicting critical properties of heavy and nonboiling hydrocarbon fractions. For this purpose, the methods available today are discussed. The procedures for application to complex mixtures are of empirical nature, and most of them are limited to distillates.The detailed information required for application of group contribution methods is usually not available for complex heavy mixtures. A new procedure is presented which takes up the concept of group contributions. The critical properties are predicted on the basis of the molecular weight and the double-bond equivalent (DBE). Since the DBE can be calculated from molecular weight and elemental composition, even nonboiling fractions can be characterized. The exactness of the model depends on the available analytical information.

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An empirical method for evaluating critical molar volumes

Cited by 12 publications

References 7 publications

Improved structure–property relationship models for prediction of critical properties

Improved structure–property relationship models for prediction of critical properties

Property estimation of palmitoylethanolamide and sucrose palmitate for process design from methyl palmitate

Critical Properties of Hydrocarbon Systems

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