Methyl acetate–methanol mixture separation by extractive distillation: Economic aspects

Graczová, Elena; Šulgan, Branislav; Barabas, Samuel; Steltenpohl, Pavol

doi:10.1007/s11705-018-1769-9

Cited by 44 publications

(18 citation statements)

References 36 publications

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“…Such mixtures are used as solvents for paint or spirit-based coatings [41]. It could equally be separated by extractive distillation [42], but this was not considered in this manuscript. The model developed above solely describes the integration of pervaporation with transesterification.…”

Section: Techno-economic Assessmentmentioning

confidence: 99%

“…Such mixtures are used as solvents for paint or spirit-based coatings [41]. It could equally be separated by extractive distillation [42], but this was not considered in this manuscript. Based on the economic assumptions provided in the SI, Tables S1-S3, and the reaction data provided by the PervApp model, the conversion cost was calculated for the baseline scenario.…”

Section: Techno-economic Assessmentmentioning

confidence: 99%

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Rational Design Method Based on Techno-Economic Principles for Integration of Organic/Organic Pervaporation with Lipase Catalyzed Transesterification

et al. 2021

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An engineering foundation is developed in this manuscript to allow the rational design of enzymatic transesterifications integrated with organic–organic pervaporation for the removal of methanol. In the first part, enzyme kinetics are elucidated for the solventless transesterification of two monoterpene alcohols with methyl acetate catalyzed by Novozym 435. Nonlinear regression revealed that three parameters (enzyme loading, forward and backward second-order reaction rate) sufficed to describe the entire conversion as a function of time. In the second part, a mathematical model for acetate ester production, integrated with organic–organic pervaporation, was developed based on a set of ordinary differential equations. To this end, empirical formulae for the pervaporation performance (of a PERVAP 2255-30 membrane and a standard HybSi® membrane) were established, relating methyl acetate and methanol flux to the methanol concentration in the reactor. The resulting digital twin, “PervApp”, allows us to study the influence of the key design parameters “enzyme loading” and “membrane surface” on, e.g., catalyst productivity. Finally, a techno-economic assessment is made for an annual production of 100 tons of geranyl acetate. The described methodology allows producers to shift from laborious, expensive and often disappointing trial-and-error approaches to the rational design of such integrated units.

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Section: Techno-economic Assessmentmentioning

confidence: 99%

“…Such mixtures are used as solvents for paint or spirit-based coatings [41]. It could equally be separated by extractive distillation [42], but this was not considered in this manuscript. Based on the economic assumptions provided in the SI, Tables S1-S3, and the reaction data provided by the PervApp model, the conversion cost was calculated for the baseline scenario.…”

Section: Techno-economic Assessmentmentioning

confidence: 99%

Rational Design Method Based on Techno-Economic Principles for Integration of Organic/Organic Pervaporation with Lipase Catalyzed Transesterification

et al. 2021

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“…Common special distillation methods are azeotropic distillation, 2-6 extractive distillation (ED) [7][8][9] and pressure-swing distillation. [10][11][12] ED is a separation method which changes the relative volatility of the original components after adding solvent.…”

Section: Introductionmentioning

confidence: 99%

Dynamic control of heat pump assisted extractive distillation process for separation of ethyl acetate/isopropanol/water mixture

Shan

Niu

Meng

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND: Controlling the behavior of processes for the recovery of ethyl acetate and isopropanol from industrial wastewater is a hot topic. In this work, dynamic control structures of the extractive distillation process and heat pump combined with feeding preheating extractive distillation process are researched. The control performance of the proposed control structures is tested by adding feed flow and composition disturbance. In these two processes, two-point temperature control structure is first used. RESULTS:The results show that this structure can maintain product purity within a reasonable range under disturbance. Furthermore, the composition controller is used to improve control performance.CONCLUSION: The improved structure can effectively meet the requirements of product purity. The heat pump combined with feeding preheating extractive distillation process can use the same control structure as the extraction process and show good controllability. This study has a certain guiding value for the research of chemical dynamic control.

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“…The product purification accounts for about 50% of the total expenses of the chemical industry. 7,8 In the traditional chemical industry process, reactive distillation (RD) is a common intensification process that combines the reaction and separation into a single piece of equipment, which could significantly reduce energy consumption. 9−12 Besides, reactive distillation could also simplify the process, break the limitation of reaction equilibrium, and improve product yield in esterification, etherification, and transesterification.…”

Section: Introductionmentioning

confidence: 99%

A Novel Process for the Production of Triethylene Glycol Di-2-ethylhexoate by Reactive Distillation Using a Sulfated Zirconia Catalyst

Zhang

et al. 2020

Ind. Eng. Chem. Res.

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To solve the problem of catalyst recovery, high investment, and high energy consumption in the traditional manufacturing process of triethylene glycol di-2-ethylhexoate (TGDE), sulfated zirconia (HND-32) and reactive distillation (RD) were used in this work. Kinetics experiments for the esterification of triethylene glycol and 2-ethylhexanoic acid catalyzed by sulfated zirconia were performed at 463.15−493.15 K. The pseudo-homogeneous model was used to obtain the kinetics equation. Then, the process analysis results of the RD column indicate that there is an optimal theoretical plate number of the stripping section to obtain the highest yield of TGDE. The yield of TGDE can be enhanced to 98.15%, and 98.5 wt % TGDE can be obtained in the bottom of the RD column when the feed molar ratio is the stoichiometric ratio.

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Methyl acetate–methanol mixture separation by extractive distillation: Economic aspects

Cited by 44 publications

References 36 publications

Rational Design Method Based on Techno-Economic Principles for Integration of Organic/Organic Pervaporation with Lipase Catalyzed Transesterification

Rational Design Method Based on Techno-Economic Principles for Integration of Organic/Organic Pervaporation with Lipase Catalyzed Transesterification

Dynamic control of heat pump assisted extractive distillation process for separation of ethyl acetate/isopropanol/water mixture

A Novel Process for the Production of Triethylene Glycol Di-2-ethylhexoate by Reactive Distillation Using a Sulfated Zirconia Catalyst

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