Low transition temperature mixtures (LTTMs) as novel entrainers in extractive distillation

N. Rodriguez; A.S.B. Gonzalez; P.M.A. Tijssen; M.C. Kroon

doi:10.1016/j.fluid.2014.10.044

Low transition temperature mixtures (LTTMs) as novel entrainers in extractive distillation

N. Rodriguez, A.S.B. Gonzalez, P.M.A. Tijssen, M.C. Kroon

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Abstract

Low transition temperature mixtures (LTTMs) are evaluated as potential entrainers for extractive distillation for the first time. The selected LTTMs were lactic acid–choline chloride 2:1 (LC 2:1), malic acid–choline chloride 1:1 (MC 1:1), glycolic acid–choline chloride 3:1 (GC 3:1) and glycolic acid–choline chloride 1:1 (GC 1:1). Vapour–liquid equilibrium (VLE) data for the pseudo-binary mixtures of water–LTTM and ethanol–LTTM were measured and fitted with the NRLT model to calculate the interaction parameters. These parameters were used to predict the pseudo-ternary VLE data using the same model. The prediction was compared with new experimental data for the water–ethanol–LTTM system and the prediction was found to be adequate. It was found that the ethanol–water azeotrope can be broken by MC 1:1, GC 1:1 and GC 3:1 and it can be moved to the pure ethanol side with LC 2:1.

Original language	English
Pages (from-to)	72-78
Number of pages	7
Journal	Fluid Phase Equilibria
Volume	385
DOIs	https://doi.org/10.1016/j.fluid.2014.10.044
Publication status	Published - 2015

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title = "Low transition temperature mixtures (LTTMs) as novel entrainers in extractive distillation",

abstract = "Low transition temperature mixtures (LTTMs) are evaluated as potential entrainers for extractive distillation for the first time. The selected LTTMs were lactic acid–choline chloride 2:1 (LC 2:1), malic acid–choline chloride 1:1 (MC 1:1), glycolic acid–choline chloride 3:1 (GC 3:1) and glycolic acid–choline chloride 1:1 (GC 1:1). Vapour–liquid equilibrium (VLE) data for the pseudo-binary mixtures of water–LTTM and ethanol–LTTM were measured and fitted with the NRLT model to calculate the interaction parameters. These parameters were used to predict the pseudo-ternary VLE data using the same model. The prediction was compared with new experimental data for the water–ethanol–LTTM system and the prediction was found to be adequate. It was found that the ethanol–water azeotrope can be broken by MC 1:1, GC 1:1 and GC 3:1 and it can be moved to the pure ethanol side with LC 2:1.",

author = "N. Rodriguez and A.S.B. Gonzalez and P.M.A. Tijssen and M.C. Kroon",

year = "2015",

doi = "10.1016/j.fluid.2014.10.044",

language = "English",

volume = "385",

pages = "72--78",

journal = "Fluid Phase Equilibria",

issn = "0378-3812",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Low transition temperature mixtures (LTTMs) as novel entrainers in extractive distillation

AU - Rodriguez, N.

AU - Gonzalez, A.S.B.

AU - Tijssen, P.M.A.

AU - Kroon, M.C.

PY - 2015

Y1 - 2015

N2 - Low transition temperature mixtures (LTTMs) are evaluated as potential entrainers for extractive distillation for the first time. The selected LTTMs were lactic acid–choline chloride 2:1 (LC 2:1), malic acid–choline chloride 1:1 (MC 1:1), glycolic acid–choline chloride 3:1 (GC 3:1) and glycolic acid–choline chloride 1:1 (GC 1:1). Vapour–liquid equilibrium (VLE) data for the pseudo-binary mixtures of water–LTTM and ethanol–LTTM were measured and fitted with the NRLT model to calculate the interaction parameters. These parameters were used to predict the pseudo-ternary VLE data using the same model. The prediction was compared with new experimental data for the water–ethanol–LTTM system and the prediction was found to be adequate. It was found that the ethanol–water azeotrope can be broken by MC 1:1, GC 1:1 and GC 3:1 and it can be moved to the pure ethanol side with LC 2:1.

AB - Low transition temperature mixtures (LTTMs) are evaluated as potential entrainers for extractive distillation for the first time. The selected LTTMs were lactic acid–choline chloride 2:1 (LC 2:1), malic acid–choline chloride 1:1 (MC 1:1), glycolic acid–choline chloride 3:1 (GC 3:1) and glycolic acid–choline chloride 1:1 (GC 1:1). Vapour–liquid equilibrium (VLE) data for the pseudo-binary mixtures of water–LTTM and ethanol–LTTM were measured and fitted with the NRLT model to calculate the interaction parameters. These parameters were used to predict the pseudo-ternary VLE data using the same model. The prediction was compared with new experimental data for the water–ethanol–LTTM system and the prediction was found to be adequate. It was found that the ethanol–water azeotrope can be broken by MC 1:1, GC 1:1 and GC 3:1 and it can be moved to the pure ethanol side with LC 2:1.

U2 - 10.1016/j.fluid.2014.10.044

DO - 10.1016/j.fluid.2014.10.044

M3 - Article

SN - 0378-3812

VL - 385

SP - 72

EP - 78

JO - Fluid Phase Equilibria

JF - Fluid Phase Equilibria

ER -

Low transition temperature mixtures (LTTMs) as novel entrainers in extractive distillation

Abstract

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