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2014•Journal of Chemical Engineering of Chinese UniversitiesRequires access

Study on Liquid-Liquid Equilibrium of 2-Methylbutane/2,2-Dimethylbutane-Benzene–Sulfolane Ternary Systems

Sun Xiao-ya

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Abstract

Liquid-liquid equilibrium(LLE) of two ternary systems(2-methylbutane-benzene-sulfolane at 297.15K and 2,2-dimethylbutane-benzene-sulfolane) were investigated at 313.15 K under atmospheric pressure. The reliability of the experimental data obtained was ascertained by applying the Othmer-Tobias correlation analysis. The experimental data was then correlated using the activity coefficient models of NRTL and UNIQUAC, which helped to acquire the binary interaction energy parameters. The results reveal that both models used can well match the experimental studies, which indicates that the NRTL and UNIQUAC models can be both used to simulate and calculate the process of aromatic hydrocarbon extraction.

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What this paper is about

Liquid-liquid equilibrium(LLE) of two ternary systems(2-methylbutane-benzene-sulfolane at 297.15K and 2,2-dimethylbutane-benzene-sulfolane) were investigated at 313.15 K under atmospheric pressure. The reliability of the experimental data obtained was ascertained by applying the Othmer-Tobias correlation analysis. The experimental data was then correlated using the activity coefficient models of NRTL and UNIQUAC, which helped to acquire the binary interaction energy parameters. The results reveal that both models used can well match the experimental studies, which indicates that the NRTL and UNIQUAC models can be both used to simulate and calculate the process of aromatic hydrocarbon extraction.

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Available abstract

Liquid-liquid equilibrium(LLE) of two ternary systems(2-methylbutane-benzene-sulfolane at 297.15K and 2,2-dimethylbutane-benzene-sulfolane) were investigated at 313.15 K under atmospheric pressure. The reliability of the experimental data obtained was ascertained by applying the Othmer-Tobias correlation analysis. The experimental data was then correlated using the activity coefficient models of NRTL and UNIQUAC, which helped to acquire the binary interaction energy parameters. The results reveal that both models used can well match the experimental studies, which indicates that the NRTL and UNIQUAC models can be both used to simulate and calculate the process of aromatic hydrocarbon extraction.

Key concepts: Sulfolane, UNIQUAC, Non-random two-liquid model, Benzene, Chemistry, Thermodynamics, Activity coefficient, Ternary operation

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Study on Liquid-Liquid Equilibrium of 2-Methylbutane/2,2-Dimethylbutane-Benzene–Sulfolane Ternary Systems — Research Paper | ScholarLens