Experimental densities and derived thermodynamic properties of pure p-cymene, α-pinene, limonene and citral under high pressure conditions

Ilić-Pajić, Jovana; Ivaniš, Gorica R.; Radović, Ivona R.; Grujić, Aleksandar; Stajić-Trošić, Jasna; Stijepović, Mirko; Kijevčanin, Mirjana Lj.

doi:10.1016/j.jct.2020.106065

Cited by 9 publications

(4 citation statements)

References 59 publications

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“…A considerably higher efficiency was found with Carbowax 6000 ( Q ij ∞ = 7.00) . The fractionation of this monoterpenes mixture is particularly attractive at an industrial scale, since these compounds are widely found in pinus EOs ,, and turpentine, an important byproduct of the pulp and paper industry . Nevertheless, the low available Q ij ∞ values reveal that the separation of these structurally similar compounds through liquid–liquid extraction or distillation processes is yet quite challenging.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of Ionic Liquids for the Sustainable Fractionation of Essential Oils

Vilas-Boas

Coelho

Martins

et al. 2023

Ind. Eng. Chem. Res.

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Fractionation of terpenes from natural complex matrices is economically attractive due to the wide use of these compounds in the cosmetic, food, and pharmaceutical industries. In this study, the potentialities of ionic liquids (ILs), and their mixtures, as separation agents in the fractionation of essential oils, were assessed through experimental and modeling approaches. Inverse gas chromatography was used to investigate solute−solvent interactions, and the COSMO-RS predictive model was applied to describe the experimental data and to search for other potential ILs by selecting the appropriate cation−anion combination. Both the experimental and predicted approaches demonstrate that chloridebased ILs are very good options for fractionating essential oils containing hydrogen-bond donor monoterpenoids. In particular, the experimental and COSMO-RS screenings suggest that [P 6,6,6,14 ]Cl gives the best performance for the separation of the main components present in citrus, mentha, and basil essential oils. The results gathered herein allow a deep understanding of terpene-IL interactions, and support the prediction of the ILs performance in the extraction and separation of natural products, optimizing resources and promoting sustainability.

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Section: Resultsmentioning

confidence: 99%

Evaluation of Ionic Liquids for the Sustainable Fractionation of Essential Oils

Vilas-Boas

Coelho

Martins

et al. 2023

Ind. Eng. Chem. Res.

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“…Consequently, ethanol is the best green solvent can be utilized in chemical separation processes industries. Ethanol has [35]; c [36]; d [37]; Absolute error good advantages over petroleum solvents or traditional solvents. Ethanol is not expensive, not harmful and cost effective.…”

Section: Resultsmentioning

confidence: 99%

Effect of Temperature on Extraction of Castor Oil from Castor Seeds Using Potential Green Solvents

Mkhize,

Ngema,

Ramsuroop

2023

ACES

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Extraction of castor oil from castor seeds was investigated using different green solvents which include d-limonene, p-cymene, α-pinene, ethanol, and furfural at the temperature range of (323 -413) K. The Soxhlet extraction method was employed to investigate the effect of temperature at atmospheric pressure. The focus of the study was to investigate a potential green solvent that can produce the high yields compared to the traditional solvent (hexane). The results show that at the average time of 3 hours and 30 minutes, the castor oil yield for green solvents were ranked as furfural (47.13%) > ethanol (45.37%) > p-cymene (39.15%) > d-limonene (39.13%) > α-pinene (38.11%). These castor oil yields were obtained at optimum temperatures for each green solvent. The castor oil yields were compared to the yield of hexane (31.36%) at same average time. The green solvents were recovered by using simple distillation, except furfural which was difficult to be recovered.

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“…The standard uncertainty in densities for all studied pure terpenes (confidence level of 95%) taking into account the uncertainty of temperature, pressure, and density was estimated to be 0.9 kg·m –3 for (293.15 K ≤ T ≤ 363.15 K) and 1.3 kg·m –3 for (373.15 K ≤ T ≤ 413.15 K). Detailed procedure for high-pressure density measurements is described in previous studies. , …”

Section: Methodsmentioning

confidence: 99%

“…Detailed procedure for high-pressure density measurements is described in previous studies. 19,20 3. RESULTS AND DISCUSSION 3.1.…”

Section: Measurementmentioning

confidence: 99%

High Pressure Densities and Derived Thermodynamic Properties of Pure (1R)-(+)-α-Pinene, (1S)-(−)-β-Pinene, and Linalool: Experiment and Modeling

Grozdanić,

Simić,

Kijevčanin

et al. 2024

J. Chem. Eng. Data

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Terpenes usually found in plants have a wide range of applications, especially as additives in various types of fuels, and most recently in the aviation industry, where they can be blended with jet fuels or kerosene. In this work, the densities of pure terpenes (1R)-(+)-α-pinene, (1S)-(−)-βpinene, and linalool were measured over the temperature range T = (293.15 to 413.15) K and at high pressures p = (0.1 to 60) MPa. The experimental density data were fitted by the modified Tammann−Tait equation where the absolute average percentage deviation between measured and calculated densities was less than 0.02%, the percentage maximum deviation was less than 0.2%, and the average percentage deviation was less than 0.02% for all three measured terpenes. The obtained parameters were used to determine isothermal compressibility (κ T ), isobaric thermal expansivity (α p ), internal pressure (p int ), and the difference between specific heat capacity at constant pressure (c p ) and constant volume (c v ). Furthermore, the PC-SAFT model was applied for liquid density prediction at high pressures. Derived thermodynamic properties such as isothermal compressibility and isobaric thermal expansivity increase as temperature increases and decrease with pressure for all of the studied compounds.

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Experimental densities and derived thermodynamic properties of pure p-cymene, α-pinene, limonene and citral under high pressure conditions

Cited by 9 publications

References 59 publications

Evaluation of Ionic Liquids for the Sustainable Fractionation of Essential Oils

Evaluation of Ionic Liquids for the Sustainable Fractionation of Essential Oils

Effect of Temperature on Extraction of Castor Oil from Castor Seeds Using Potential Green Solvents

High Pressure Densities and Derived Thermodynamic Properties of Pure (1R)-(+)-α-Pinene, (1S)-(−)-β-Pinene, and Linalool: Experiment and Modeling

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