Comparison of heteroazeotropic and extractive distillation for the dehydration of propylene glycol methyl ether

Chen, Yi‐Chun; Yu, Bor-Yih; Hsu, Chung-Chih; Chien, I‐Lung

doi:10.1016/j.cherd.2016.05.003

Cited by 50 publications

(28 citation statements)

References 20 publications

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“…Regarding design, optimization and control, the community is much larger. It was also investigated by the aforementioned authors (Lang, 1992;Lang et al, 1994Lang et al, , 1995Lelkes et al, 1998aLelkes et al, , 2002Lelkes et al, , 2003aYou et al, 2015aYou et al, ,b, 2016a and several teams all over the world: American (Luyben, 2008a(Luyben, ,b, 2013(Luyben, , 2015(Luyben, , 2016a(Luyben, ,b,c, 2018a, Chinese from Taiwan region (Arifin and Chien, 2008;Hsu et al, 2010;Wu et al, 2013;Chen et al 2015Chen et al , 2016, Brasilian (De Figueirêdo et al, 2011Brito, 2015;Brito et al, 2016), Colombian (Gil et al, 2009(Gil et al, , 2012(Gil et al, , 2014, Italian (Errico and Rong, 2012;Errico et al, 2013Errico et al, , 2015 and Mexican (Gutiérrez-Guerra et al, 2009;Torres-Ortega et al, 2014; teams and recently many teams from mainland China (Lei et al, 2002(Lei et al, , 2014Li et al, 2016Han et al 2015;Luo et al, 2014Luo et al, , 2015Wang et al, 2012Wang et al, , 2015aWang et al, , 2016Wang et al, , 2018aZhang et al, 2014…”

Section: 1mentioning

confidence: 99%

Review of extractive distillation. Process design, operation, optimization and control

Gerbaud

Rodríguez-Donis

Hégely

et al. 2019

Chemical Engineering Research and Design

197

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Operation and control Extractive distillation processes enable the separation of non-ideal mixtures, including minimum or maximum boiling azeotropes and low relative volatility mixtures. Unlike azeotropic distillation, the entrainer fed at another location than the main mixture induces an extractive section within the column. A general feasibility criterion shows that intermediate and light entrainers and heterogeneous entrainers are suitable along common heavy entrainers. Entrainer selection rules rely upon selectivity ratios and residue curve map (rcm) topology including univolatility curves. For each type of entrainer, we define extractive separation classes that summarize feasibility regions, achievable products and entrainer-feed flow rate ratio limits. Case studies are listed as Supplementary materials. Depending on the separation class, a direct or an indirect split column configuration will allow to obtain a distillate product or a bottom product, which is usually a saddle point of rcm. Batch and continuous process operations differ mainly by the feasible ranges for the entrainer-feed flow rate ratio and reflux ratio. The batch process is feasible under total reflux and can orient the still path by changing the reflux policy. Optimisation of the extractive process must systematically consider the extractive column along with the entrainer regeneration column that requires energy and may limit the product purity in the extractive column through recycle. For the sake of reducing the energy cost and the total cost, pressure change can be beneficial as it affects volatility, or new process structures can be devised, namely heat integrated extractive distillation, extractive divided wall column or processes with preconcentrator.

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Section: 1mentioning

confidence: 99%

Review of extractive distillation. Process design, operation, optimization and control

Gerbaud

Rodríguez-Donis

Hégely

et al. 2019

Chemical Engineering Research and Design

197

View full text Add to dashboard Cite

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“…In order to reduce the cost, it is hoped that the mixture of acetone and cyclohexane can be separated and recycled, but they form azeotropic system and can not be separated by conventional distillation. At present, for the separation of azeotropic systems, the main methods are adsorption, azeotropic distillation [8,9], extractive distillation [10,11], reactive distillation, salt-adding distillation, membrane separation, pressure-swing distillation [12,13]. In addition, liquid-liquid extraction [14][15][16] is a widely used azeotrope separation method.…”

Section: Introductionmentioning

confidence: 99%

Measurement and correlation of liquid - Liquid equilibria of three imidazolium ionic liquids with acetone and cyclohexane

Zhu

Feng

et al. 2020

Journal of Molecular Liquids

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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“…1-Methoxy-2-propanol (PM) is an excellent solvent and dispersant used in industry because of both an ether group and a hydroxyl group in its molecular structure. It is generally used in coatings, inks, printing and dyeing, cellulose and other industries. , In addition, it is an intermediate of the herbicide metolachlor. 2-Methoxy-1-propanol (MP) is an isomer of PM and has the same chemical formula and a similar chemical structure.…”

Section: Introductionmentioning

confidence: 99%

“…It is generally used in coatings, inks, printing and dyeing, cellulose and other industries. 1,2 In addition, it is an intermediate of the herbicide metolachlor. 2-Methoxy-1-propanol (MP) is an isomer of PM and has the same chemical formula and a similar chemical structure.…”

Section: Introductionmentioning

confidence: 99%

Vapor Liquid Equilibrium for the Binary of 1-Methoxy-2-propanol + 1,2-Propanediol and 2-Methoxy-1-propanol + 1,2-Propanediol at 101.3 kPa and 50.0 kPa

Sun

et al. 2020

J. Chem. Eng. Data

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The isobaric vapor–liquid equilibrium (VLE) data of 1-methoxy-2-propanol (PM) + 1,2-propanediol (PG) and 2-methoxy-1-propanol (MP) + 1,2-propanediol (PG) was measured in this work by a modified Rose-Williams still under pressures of 101.3 kPa and 50.0 kPa. The Wisniak test and the Van Ness test were applied to confirm the thermodynamic consistency of the VLE data. The experimental isobaric VLE data were correlated by the nonrandom two-liquid and universal quasichemical models. The experiment results showed that these two models perfectly correlate the measured VLE data.

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Comparison of heteroazeotropic and extractive distillation for the dehydration of propylene glycol methyl ether

Cited by 50 publications

References 20 publications

Review of extractive distillation. Process design, operation, optimization and control

Review of extractive distillation. Process design, operation, optimization and control

Measurement and correlation of liquid - Liquid equilibria of three imidazolium ionic liquids with acetone and cyclohexane

Vapor Liquid Equilibrium for the Binary of 1-Methoxy-2-propanol + 1,2-Propanediol and 2-Methoxy-1-propanol + 1,2-Propanediol at 101.3 kPa and 50.0 kPa

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