Ionic liquid copolymerized polyurethane membranes for pervaporation separation of benzene/cyclohexane mixtures

Xi, Tao; Lü, Yingying; Ai, Xinyu; Tang, Lin; Yao, Lulu; Hao, Wentao; Cui, Peng

doi:10.1016/j.polymer.2019.121948

Cited by 12 publications

(6 citation statements)

References 75 publications

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“…Separating benzene from cyclohexane is challenging because of their close boiling points and azeotrope. Various techniques have been investigated for the separation of the benzene–cyclohexane mixture. − Therefore, this case study explores the application of ARDT for a typical hydrogenation reaction. An overview of the cyclohexane system is summarized in Table S15 in the Supporting Information.…”

Section: Case Studies To Demonstrate the Application Of The Synthesis...mentioning

confidence: 99%

A Systematic Methodology for the Synthesis of Advanced Reactive Distillation Technologies

Pazmiño-Mayorga

Jobson

Kiss

2023

Ind. Eng. Chem. Res.

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This study is the first to provide a systematic approach to assessing the potential of advanced reactive distillation technologies to expand the applicability of reactive distillation. The work presented here focuses on the synthesis of advanced reactive distillation technologies, proposing a conceptually based methodology for earlystage screening. The methodology uses basic thermodynamic and kinetic data to navigate a decision-making flowchart in four steps: compositions and splits, basic properties and operating windows, kinetics, and phase equilibria. The results qualify advanced reactive distillation technologies as advantageous, technically feasible, or not applicable. Five industrially relevant case studies illustrate the application of the methodology to develop preliminary process flowsheets. The proposed methodology aims to guide technology selection using basic data while providing flexibility to meet the objectives of the design problem. This methodology contributes to integrating a technology-oriented approach normally followed in process intensification studies into a process systems engineering approach by developing a conceptual flowsheet in the early stages of process design.

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Section: Case Studies To Demonstrate the Application Of The Synthesis...mentioning

confidence: 99%

A Systematic Methodology for the Synthesis of Advanced Reactive Distillation Technologies

Pazmiño-Mayorga

Jobson

Kiss

2023

Ind. Eng. Chem. Res.

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“…129 In addition, Xi and coworkers also developed an ILPM by copolymerizing an IL with waterborne polyurethane for benzene and cyclohexane separation. 130 In our previous review, we discussed how the ILM technique has been successfully employed for the selective separation of organic acids, including but not limited to lactic acid (LA), salicylic acid (SA), and 3-phenoxyproionic acid. 47 For example, Matsumoto and colleagues employed the impregnation method to prepare multiple SILMs using six different commercial ILs impregnated into the pores of a PVDF MF membrane support for separating lactic acid.…”

Section: Organic Separationmentioning

confidence: 99%

Ionic liquids membranes for liquid separation: status and challenges

et al. 2023

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“…Pervaporation membranes are promising new options for use as polyurethanes [ 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ]. The selectivity and productivity of PU membranes are influenced by the chemical and physical structure of membrane materials, particularly the ratio between soft and hard segments and the degree of crosslinking.…”

Section: Introductionmentioning

confidence: 99%

Organophosphorus Polyurethane Ionomers as Water Vapor Permeable and Pervaporation Membranes

et al. 2021

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Organophosphorus polyurethane ionomers (AEPA-PU) based on aminoethers of ortho-phosphoric acid (AEPA) were obtained and studied as pervaporation membrane materials for separating isopropanol/water mixtures. The regularities of the change in the water vapor permeability of AEPA-PU were also investigated. It has been established that an increase of solute content in the composition of the urethane-forming system and the content of ionogenic groups in AEPA leads to a noticeable increase in the vapor permeability of the resulting film materials. An increase in water vapor permeability values is accompanied by a significant increase in the pervaporation characteristics of AEPU-PU. It was shown that the conditions promoting clustering of phosphate anions cause an increase in the values of the vapor permeability coefficient of AEPA-PU obtained using polyoxypropylene glycol. However, the hydrophobicity of the polypropylene glycol surrounding the clusters makes it difficult for water to move through the polymer matrix. Due to the hydrophilicity of polyoxyethylene glycol, the highest values of water vapor permeability and pervaporation characteristics are achieved for AEPA-PU synthesized using PEG.

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Ionic liquid copolymerized polyurethane membranes for pervaporation separation of benzene/cyclohexane mixtures

Cited by 12 publications

References 75 publications

A Systematic Methodology for the Synthesis of Advanced Reactive Distillation Technologies

A Systematic Methodology for the Synthesis of Advanced Reactive Distillation Technologies

Ionic liquids membranes for liquid separation: status and challenges

Organophosphorus Polyurethane Ionomers as Water Vapor Permeable and Pervaporation Membranes

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