Estimation of LLE for PIONA families in SULFOLANE and its validation

Khanna, Ashok; Singh, Manish K.; Bajpai, Saurabh; Sanpui, Debjit

doi:10.1016/j.fluid.2003.08.012

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…Especially, ternary liquid + liquid equilibrium (LLE) data are essential for a proper understanding of the solvent extraction process [1]. Because solvents such as sulfolane, DMSO, and ethylene carbonate have been widely used in the recovery of aromatics, such as benzene, toluene, and m-xylene from refinery process streams, many investigators have studied the liquid + liquid phase equilibria for ternary and quaternary mixtures of solvents + aromatic hydrocarbons + alkanes [2][3][4][5][6][7][8][9] The separation of aromatic and aliphatic hydrocarbons has been an area of active research [10][11][12][13][14][15][16]. Also, in this case, the search for suitability of new solvents that can be used in liquid + liquid extraction is an ongoing investigation.…”

Section: Introductionmentioning

confidence: 99%

Liquid+liquid equilibria for ternary mixtures of (solvent+aromatic hydrocarbon+alkane)

Mohsen-Nia

Modarress

Doulabi

et al. 2005

The Journal of Chemical Thermodynamics

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Section: Introductionmentioning

confidence: 99%

Liquid+liquid equilibria for ternary mixtures of (solvent+aromatic hydrocarbon+alkane)

Mohsen-Nia

Modarress

Doulabi

et al. 2005

The Journal of Chemical Thermodynamics

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“…In the petroleum refining industry, sulfolane is a commercial extraction solvent mostly used for aromatics extraction from different petroleum fractions (Ahmad et al, 2004;Khanna et al, 2004;Espada et al, 2007;Liu et al, 2008). Because part of the sulfur in petroleum is present in the form aromatic compounds (Brunet et al, 2005), this solvent is an interesting candidate for extraction desulfurization of FCC gasoline.…”

Section: Introductionmentioning

confidence: 99%

Modeling of the FCC Gasoline Desulfurization Process by Liquid Extraction with Sulfolane

Adžamić¹,

Sertić-Bionda²,

Marčec-Rahelić³

2010

Petroleum Science and Technology

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Extractive desulfurization of fluid catalytic cracking (FCC) gasoline with sulfolane was studied in a batch apparatus. The influence of three inlet parameters (temperature, inlet sulfur content, and solvent ratio) on the process response, that is, desulfurization efficiency, was investigated with the use of a Box-Behnken experimental design by response surface methodology. A mathematical model that can be used for predicting sulfur content in raffinate after extractive batch processing with sulfolane was statistically developed and proven with analysis of variance. Statistical analysis showed that the largest influence on desulfurization efficiency was solvent ratio, the second most significant influence was inlet sulfur content, followed by temperature, and last the interaction between solvent ratio and inlet sulfur content. The obtained second-order polynomial model shows that maximum desulfurization efficiency of 65.34% can be achieved at temperature of 50 ı C and higher values of inlet sulfur content and solver ratio in the researched range of inlet parameter values.

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“…In chemical industries, especially in the liquid extraction processes, suitable solvents such as sulfolane, ethylene carbonate, and dimethyl sulfoxide (DMSO) play an important role from practical and economical viewpoints. , By considering the role of the solvents in the extraction of aromatic hydrocarbons from alkane mixtures in industrial processes, it is worthwhile to study the liquid−liquid equilibrium (LLE) of ternary systems of (solvent + aromatic hydrocarbons + alkanes). Therefore, the search for determining the optimum conditions of the liquid−liquid extraction processes is an ongoing study.…”

Section: Introductionmentioning

confidence: 99%

Ternary Liquid−Liquid Equilibria for Systems of (Sulfolane + Toluene or Chloronaphthalene + Octane)

Doulabi¹,

Mohsen-Nia²

2006

J. Chem. Eng. Data

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Tie-line data for ternary systems of (sulfolane + toluene + octane) at temperatures of 303.2 K and 313.2 K and (sulfolane + chloronaphthalene + octane) at temperatures of 298.2 K and 303.2 K are reported. The composition of liquid phases at equilibrium was determined by gas-liquid chromatography, and the results were correlated with the UNIQUAC and NRTL activity coefficient models to obtain the binary interaction parameters. Both the UNIQUAC and the NRTL models satisfactorily correlated the equilibrium compositions. The partition coefficients and the selectivity factor of sulfolane for extraction of toluene and chloronaphthalene from octane-containing systems are calculated. Then the efficiency of the extraction of toluene from the (toluene + octane) mixture is compared with that for the extraction of chloronaphthalene from the (chloronaphthalene + octane) mixture by using the calculated selectivity factors and the partition coefficients of the used solvent. The phase diagrams for the ternary systems are presented, and the correlated tie-line results have been compared with the experimental data.

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Estimation of LLE for PIONA families in SULFOLANE and its validation

Cited by 3 publications

References 7 publications

Liquid+liquid equilibria for ternary mixtures of (solvent+aromatic hydrocarbon+alkane)

Liquid+liquid equilibria for ternary mixtures of (solvent+aromatic hydrocarbon+alkane)

Modeling of the FCC Gasoline Desulfurization Process by Liquid Extraction with Sulfolane

Ternary Liquid−Liquid Equilibria for Systems of (Sulfolane + Toluene or Chloronaphthalene + Octane)

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