Solubilities of cinnamic acid, phenoxyacetic acid and 4-methoxyphenylacetic acid in supercritical carbon dioxide

Chen, Yanping; Chen, Yeng; Tang, Muoi

doi:10.1016/j.fluid.2008.09.009

Cited by 39 publications

(12 citation statements)

References 14 publications

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“…This discrepancy can be attributed to the difference in the location of the crossover point of the solubility isotherms. Chen et al 10 experimentally observed this crossover point at a pressure around 17.5 MPa, while in our experiments the isotherms' crossover would have been observed at pressures higher than 20 MPa. Furthermore, this dissimilarity can be attributed to the different experimental techniques employed by the two groups of researchers to obtain the solubilities.…”

Section: Results and Modelingcontrasting

confidence: 47%

“…Additionally, Figure 4 shows a comparison between the cinnamic acid solubility reported by Chen el al. 10 and the GCA-EoS predictions. Despite that the COOH-AC/ACH binary interaction parameters were accepted to be equal to the ACOOH-AC/ACH interaction, good agreement could be observed in the prediction of cinnamic acid solubility in pure SC-CO 2 .…”

Section: Results and Modelingmentioning

confidence: 99%

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Trans-Cinnamic Acid Solubility Enhancement in the Presence of Ethanol As a Supercritical CO₂ Cosolvent

Cháfer¹,

Fornari²,

Stateva³

et al. 2009

J. Chem. Eng. Data

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Trans-3-phenyl-2-propenoic acid (cinnamic acid; trans-cinnamic acid) is widely used in food, cosmetics, and pharmaceuticals because of its reported antimicrobial, antifungal, and antioxidant properties. This paper is devoted to the experimental measurement of the solubility of solid trans-cinnamic acid in pure supercritical CO2 and in supercritical CO2 with ethanol as a cosolvent. Measurements were carried out at T = (313.15 to 343.15) K and at p = (10 to 40) MPa. Two different thermodynamic models were applied to represent the solubility data obtained: a cubic type equation of state, the Soave−Redlich−Kwong (SRK-EoS) was employed to correlate the solubility data and the group contribution associating EoS (GCA-EoS) was also applied but in a completely predictive manner. In addition, values for the thermophysical properties of trans-cinnamic acid are also advocated.

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Section: Results and Modelingcontrasting

confidence: 47%

Section: Results and Modelingmentioning

confidence: 99%

Trans-Cinnamic Acid Solubility Enhancement in the Presence of Ethanol As a Supercritical CO₂ Cosolvent

Cháfer¹,

Fornari²,

Stateva³

et al. 2009

J. Chem. Eng. Data

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“…The cross over pressure is not similar for all samples. As reported by previous researchers, the cross over pressure values of cinnamic acid, phenoxyacetic acid, 4-methoxyphenylacetic acid and clotrimazole are 16.2 to 16.8 MPa, 13.4 to 14 MPa, 16 to 16.7 MPa and 20 MPa, respectively[31,32]. Solubility of extract in supercritical fluid at constant flow rate of (a) 2 mL/min (b) 3 mL/min (c) 4 mL/min (♦ for 50 °C, for 60 °C and ▲ for 70 °C)…”

supporting

confidence: 66%

Kinetic Modeling of Supercritical Fluid Extraction of Betel Nut

Ruslan¹,

Idham²,

Zaini³

et al. 2018

Int. J. Automot. Mech. Eng.

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Supercritical fluid extraction is an advanced extraction technique that suitable for heat sensitive and active compound material from plants and herbs. Understanding the effect of extraction parameters on mass transfer coefficient at solid and fluid phase can determine the dominating extraction regime thus performance of the extraction may be enhanced. The aim of this research was to determine the mass transfer coefficient in solid and fluid phase using kinetic modelling approach. Grounded betel nuts were treated with supercritical carbon dioxide with 5% methanol as co-solvent to determine its mass transfer coefficient in solid and fluid phase for the following extraction conditions; pressure, 20 to 30 MPa; temperature, 50 to 70 °C; and flow rate, 2 to 4 mL/min. Simplified Sovová model was coupled with Broken and Intact Cell model to determine the mass transfer coefficients. Results show the mass transfer coefficients of solid phase and liquid phase are in the ranges of 0.00015 to 0.00353 m 3 /min and 0.3497 to 3.9623 m 3 /min, respectively. The overall absolute average relative deviation was observed to be 7.39%.

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“…In order to compare the accuracy of these models, the available solubility data (in mole fraction) of 54 different kinds of compounds have been collected from the literature (including 1155 data points). ,,− The details of compounds (names and formulas) and their references are listed in Table . The details of the solubility data (temperature, pressure, mole fraction solubility of the solutes, and number of experimental data points) are presented in Table .…”

Section: Comparison and Evaluation Of The Semiempirical Modelsmentioning

confidence: 99%

New Experimental Data and Modeling of the Solubility of Compounds in Supercritical Carbon Dioxide

Zhao

Jin

Zhang

et al. 2012

Ind. Eng. Chem. Res.

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The solid solubility of o-nitrobenzoic acid in supercritical carbon dioxide (SCCO 2 ) was measured using a dynamic-flow technique at 308, 318, and 328 K and in the pressure range of 10.0−21.0 MPa. The experimental solubility data of the solute in SCCO 2 were correlated by six different theoretical semiempirical models [the Chrastil, Kumar and Johnston, Sung and Shim (SS), Meńdez-Santiago and Teja, Bartle−Clifford−Jafar−Shilstone, and Jouyban−Chan−Foster models] with the average absolute relative deviation from 4.30% to 6.61%. The correlated results indicate that the SS model provides the best fit. Solubility data from 54 different compounds of different functional groups (including carboxyl, amino, chain alkyl, heterocycle, azo, diglycolic, and anthraquinone) were collected from the literature to compare and evaluate these models. The division criteria of temperature, pressure, mole fraction solubility of the solutes, and number of experimental data points were established. The predictive capability and applicability of these models for different types of solutes and at different conditions are demonstrated in this paper.

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Solubilities of cinnamic acid, phenoxyacetic acid and 4-methoxyphenylacetic acid in supercritical carbon dioxide

Cited by 39 publications

References 14 publications

Trans-Cinnamic Acid Solubility Enhancement in the Presence of Ethanol As a Supercritical CO₂ Cosolvent

Trans-Cinnamic Acid Solubility Enhancement in the Presence of Ethanol As a Supercritical CO₂ Cosolvent

Kinetic Modeling of Supercritical Fluid Extraction of Betel Nut

New Experimental Data and Modeling of the Solubility of Compounds in Supercritical Carbon Dioxide

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Solubilities of cinnamic acid, phenoxyacetic acid and 4-methoxyphenylacetic acid in supercritical carbon dioxide

Cited by 39 publications

References 14 publications

Trans-Cinnamic Acid Solubility Enhancement in the Presence of Ethanol As a Supercritical CO2 Cosolvent

Trans-Cinnamic Acid Solubility Enhancement in the Presence of Ethanol As a Supercritical CO2 Cosolvent

Kinetic Modeling of Supercritical Fluid Extraction of Betel Nut

New Experimental Data and Modeling of the Solubility of Compounds in Supercritical Carbon Dioxide

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Product

Resources

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Trans-Cinnamic Acid Solubility Enhancement in the Presence of Ethanol As a Supercritical CO₂ Cosolvent

Trans-Cinnamic Acid Solubility Enhancement in the Presence of Ethanol As a Supercritical CO₂ Cosolvent