Equilibrium study for ternary mixtures of biodiesel

Doungsri, Sujitra; Sookkumnerd, Terasut; Wongkoblap, Atichat; Nuchitprasittichai, Aroonsri

doi:10.1088/1757-899x/273/1/012008

Cited by 2 publications

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“…Accordingly, it is also necessary for undertakers, but its range of applicability is in the liquid phase equilibrium of this system. Many researchers have focused on the study of the liquid-liquid phase equilibrium of biodiesel + methanol (ethanol) + glycerol (water), primarily centered around the ternary systems utilized for the production of biodiesel from vegetable oils such as soybean oil biodiesel or rapeseed oil biodiesel [19][20][21][22][23][24]. Mhadesi [25] reported using the UNIQUAC and NRTL models to conduct related predictions of the liquid-liquid phase equilibrium of different biodiesel + glycerol + alcohol; therefore, the experimental date was the previous date in the literature.…”

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibrium Behavior of Ternary Systems Comprising Biodiesel + Glycerol and Triglyceride + Methanol: Experimental Data and Modeling

Yang,

Xing,

Teng

et al. 2024

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Having a comprehensive knowledge of phase equilibrium is advantageous for industrial simulation and design of chemical processes. For further acquisition of primary data to facilitate the separation and purification of waste oil biodiesel systems, a liquid–liquid equilibrium (LLE) tank is deployed for the ternary system of waste oil biodiesel + methanol + glycerin, thereby enhancing the precision and efficiency of the process. The phase equilibrium system was constructed under the influence of atmospheric pressure at precise temperatures of 303.15 K, 313.15 K, and 323.15 K. The equilibrium components of each substance were analyzed by employing high-temperature gas chromatography, a sophisticated analytical method that enables the identification and quantification of individual components of a sample. Moreover, the ternary liquid–liquid equilibrium data were correlated by implementing the NRTL and UNIQUAC activity coefficient models. Subsequently, the binary interaction parameters of the ternary system were derived by conducting regression analysis. The experimental data demonstrated that the presence of lower methanol content in the system resulted in nearly immiscible biodiesel and glycerol phases, which ultimately facilitated the separation of biodiesel and glycerol. Conversely, with the increase in methanol content, the mutual solubility of biodiesel and glycerol was observed to increase gradually. The results showed that the calculated values of the NRTL and UNIQUAC models aligned well with the experimental values. The root-mean-square deviations of the NRTL and UNIQUAC models at 313.15 K were 2.76% and 3.56%, respectively.

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Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibrium Behavior of Ternary Systems Comprising Biodiesel + Glycerol and Triglyceride + Methanol: Experimental Data and Modeling

Yang,

Xing,

Teng

et al. 2024

Catalysts

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Phase equilibria modeling of biorefinery-related systems: a systematic review

Corazza

Trancoso

2021

Chemical Product and Process Modeling

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The search for sustainable ideas has gained prominence in recent decades at all levels of society since it has become imperative an economic, social, and environmental development in an integrated manner. In this context, biorefineries are currently present as the technology that best covers all these parameters, as they add the benefits of waste reuse, energy cogeneration, and fossil fuel substitution. Thus, the study of the various applicable biological matrices and exploring the technical capabilities of these processes become highly attractive. Thermodynamic modeling acts in this scenario as a fundamental tool for phase behavior predictions in process modeling, design, and optimization. Thus, this work aimed to systematize, using the PRISMA statement for systematic reviews, the information published between 2010 and 2020 on phase equilibria modeling in systems related to biorefineries to organize what is already known about the subject. As a result, 236 papers were categorized in terms of the year, country, type of phase equilibria, and thermodynamic model used. Also, the phase behavior predictions of different thermodynamic models under the same process conditions were qualitatively compared, establishing PC-SAFT as the model that best represents the great diversity of interest systems for biorefineries in a wide range of conditions.

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Equilibrium study for ternary mixtures of biodiesel

Cited by 2 publications

References 0 publications

Liquid–Liquid Equilibrium Behavior of Ternary Systems Comprising Biodiesel + Glycerol and Triglyceride + Methanol: Experimental Data and Modeling

Liquid–Liquid Equilibrium Behavior of Ternary Systems Comprising Biodiesel + Glycerol and Triglyceride + Methanol: Experimental Data and Modeling

Phase equilibria modeling of biorefinery-related systems: a systematic review

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