Synthesis of dimethyl carbonate and propylene glycol in a pilot-scale reactive distillation column: Experimental investigation, modeling and process analysis

Holtbruegge, Johannes; Heile, Sebastian; Lutze, Philip; Górak, Andrzej

doi:10.1016/j.cej.2013.08.054

Cited by 50 publications

(29 citation statements)

References 56 publications

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“…wileyonlinelibrary.com/jctb Table 7. Overview of the submodels used for the Aspen Properties ® -based THRSWT table Component ACE ISOPR RPE SPE PEA 1 100 100 0 0 0 2 105 105 515 515 504 3 101 101 0 0 0 4 106 106 505 505 505 5 100 0 0 0 0 6 100 100 0 0 506 7 107 107 513 513 513 8 104 104 0 0 0 A thorough description of the distillation column and the complete experimental set-up can be found in Wierschem et al, 15 Holtbruegge et al 21 and Keller et al 22 The most important aspects of the equipment and the set-up are, however, summarized in the following. The packed height of the column was 5.16 m, distributed over six sections made of glass with seven liquid distributors and a diameter of 51 mm.…”

Section: Methodsmentioning

confidence: 99%

“…For the experimental investigation of the ERD with the present chemical system a pilot‐scale distillation column from the Laboratory of Fluid Separations, TU Dortmund University, was used. A thorough description of the distillation column and the complete experimental set‐up can be found in Wierschem et al ., Holtbruegge et al . and Keller et al .…”

Section: Investigation Of Enzymatic Reactive Distillationmentioning

confidence: 99%

“…The model is thoroughly described in the article of Wierschem et al . with references to the preceding work of Klöker et al ., Brunazzi and Viva, Holtbrügge et al . and Keller et al .…”

Section: Investigation Of Enzymatic Reactive Distillationmentioning

confidence: 99%

“…15 This model considers the so-called MER-SHQ approach, which includes material and energy balances, rate equations, summation and hydraulic equations and interface eQuilibrium conditions. 23 The model is thoroughly described in the article of Wierschem et al 15 with references to the preceding work of Klöker et al, 24 Brunazzi and Viva, 25 Holtbrügge et al 26 and Keller et al 27 The descriptions include correlations for mass transfer and hydrodynamics. In comparison with our previous work 13 the current ERD model is modified by the reaction kinetic model developed in this study.…”

Section: Model Descriptionmentioning

confidence: 99%

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Model validation for enzymatic reactive distillation to produce chiral compounds

Wierschem

Langen

Lins

et al. 2017

J of Chemical Tech & Biotech

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BACKGROUND Enzymatic reactive distillation (ERD) is a biocatalyzed process, in which enzymes are immobilized in catalytic packing. The combination of enzymatic reaction and thermal separation helps to overcome chemical reaction and phase equilibrium limitations. Processing of chiral molecules, in particular, can benefit from ERD application, which might lead to more eco‐efficient processing of these valuable chemicals. Therefore an integrated approach to evaluate this technology is followed. RESULTS To evaluate ERD the transesterification of racemic (R/S)‐1‐phenylethanol (RPE/SPE) to (R)‐phenylethyl acetate (PEA) catalyzed by Candida antarctica lipase B (EC: 3.1.1.3) is investigated with regard to kinetics and physical property data, which provide a basis for the modeling of an ERD process. Furthermore, ERD experiments show a selective conversion of RPE to PEA, which is predicted by the established ERD model with high accuracy. CONCLUSION The ERD experiments demonstrate the feasibility of chiral processing for the transesterification by means of ERD and a validated ERD model is developed, allowing for a conceptual evaluation of ERD. This provides the basis for a future comparison of ERD with benchmark processes that will reveal the economic potential of ERD processes. © 2017 Society of Chemical Industry

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Section: Methodsmentioning

confidence: 99%

Section: Investigation Of Enzymatic Reactive Distillationmentioning

confidence: 99%

“…The model is thoroughly described in the article of Wierschem et al . with references to the preceding work of Klöker et al ., Brunazzi and Viva, Holtbrügge et al . and Keller et al .…”

Section: Investigation Of Enzymatic Reactive Distillationmentioning

confidence: 99%

Section: Model Descriptionmentioning

confidence: 99%

See 2 more Smart Citations

Model validation for enzymatic reactive distillation to produce chiral compounds

Wierschem

Langen

Lins

et al. 2017

J of Chemical Tech & Biotech

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“…In recent studies the model was successfully used to accurately predict or reproduce experimental operating points for the synthesis of dimethyl carbonate and propylene glycol [10], for n-propyl propionate synthesis [11] and for n-butyl acrylate production [26]. A first modeling study on the ERD for a chiral chemical system was recently published [19].…”

Section: Model Descriptionmentioning

confidence: 99%

Pilot-scale validation of Enzymatic Reactive Distillation for butyl butyrate production

Wierschem

Schlimper

Heils

et al. 2017

Chemical Engineering Journal

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Highlights• Butyl butyrate synthesis by Enzymatic Reactive Distillation is possible• Established rate-based model to describe Enzymatic Reactive Distillation • First time validation for an Enzymatic Reactive Distillation process model AbstractFor enzyme-catalyzed reactions, batch processes using stirred tank reactors are the state-ofthe-art production mode. The yield of the process may be limited by reaction equilibrium, product inhibition of the enzyme, low concentrations and possibly low reaction rates, while the recovery of the product may be limited due to thermodynamic constraints such as azeotropes. Using enzymes in an integrated reactive distillation process can overcome these limitations and provides a cost advantage over classic batch reactor processes.The aim of this paper is i) to report the successful pilot-scale experimental validation of an Enzymatic Reactive Distillation (ERD) process for the synthesis of butyl butyrate and ii) to Pilot-Scale Validation of Enzymatic Reactive Distillation for Butyl Butyrate ProductionWierschem et al.2 establish a rate-based model for conceptual process design which can be quickly adapted to other systems.The main novelty is the application of a continuous RD column with enzymes as a heterogeneous catalyst provided in two different types of catalytic packing: loosely filled immobilized enzyme beads in standard packings with catalyst pockets and gauze packings with catalytic coating.Experimental pilot-scale experiments show the feasibility of ERD and allow the comparison of the different packing types based on catalytic performance as well as stability.Furthermore, these experiments are used to validate a predictive rate-based model to describe ERD which can be used to check the sensitivity of process and design parameters as well as to provide a quick adaption to other systems for quick evaluation.

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Coproduction of Ethyl Acetate and n‐Butyl Acetate by Using a Reactive Dividing‐Wall Column

Xie

Peng

et al. 2018

Chem Eng & Technol

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The performance of the reactive distillation dividing-wall column for coproduction of ethyl acetate and butyl acetate was experimentally studied. n-Butanol and ethanol are raw reaction materials that react with acetic acid in the reaction zone to produce n-butyl acetate and ethyl acetate, respectively. n-Butyl acetate is not only a product, but also acts to remove water generated by the esterification reactions. The effects of various parameters, such as catalyst loading per stage, reflux ratio, liquid split and molar feed ratios, ethyl acetate/n-butyl acetate purity, pressure drop, and total energy consumption, are investigated. Results show that ethanol could be completely converted and the products could be easily separated, which shows great industrial application potential in the coproduction of ethyl acetate and n-butyl acetate.

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Synthesis of dimethyl carbonate and propylene glycol in a pilot-scale reactive distillation column: Experimental investigation, modeling and process analysis

Cited by 50 publications

References 56 publications

Model validation for enzymatic reactive distillation to produce chiral compounds

Model validation for enzymatic reactive distillation to produce chiral compounds

Pilot-scale validation of Enzymatic Reactive Distillation for butyl butyrate production

Coproduction of Ethyl Acetate and n‐Butyl Acetate by Using a Reactive Dividing‐Wall Column

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