The first large-scale pervaporation plant using tubular-type module with zeolite NaA membrane

Morigami, Yoshio; Kondo, Masakazu; Abe, Jun; Kita, Hidetoshi; Okamoto, Ken‐ichi

doi:10.1016/s1383-5866(01)00109-5

Cited by 592 publications

(239 citation statements)

References 5 publications

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“…[230][231][232] A pioneering role in the development of zeolite Na-LTA zeolite membranes for the dehydration of bio-ethanol was played by Bussan Nanotech Research Institute Inc. (BNRI), Japan, a Member of the Mitsui Holding, which developed a process for the production of fuel-grade ethanol by a hybrid distillation/vapor permeation process. 233,234 240,241 came into the focus. A combined seeding method by using ball-milled seeds was developed at Nanjing University of Technology for the synthesis of LTA zeolite membranes, which could improve reproducibility and reduce synthesis time significantly.…”

Section: Progress In Industrial Application Of Zeolite Membranesmentioning

confidence: 99%

Zeolite membranes – a review and comparison with MOFs

et al. 2015

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aThe latest developments in zeolite membranes are reviewed, with an emphasis on the synthesis techniques, including seed assembly and secondary growth methods. This review also discusses the current industrial applications of zeolite membranes, the feasibility of their use in membrane reactors and their hydrothermal stability. Finally, zeolite membranes are compared with metal-organic framework (MOF) membranes and the latest advancements in MOF and mixed matrix membranes are highlighted.

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Section: Progress In Industrial Application Of Zeolite Membranesmentioning

confidence: 99%

Zeolite membranes – a review and comparison with MOFs

et al. 2015

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“…It could be used for alcohol dehydration catalyzed by ion-exchange acid resins, which is generally limited by deactivation of the catalyst because of the water adsorption on the resin active sites. Specifically, such well-established capability of NaA zeolite membranes towards selective water separation was exploited in the first industrial application of zeolite membranes for de-watering of ethanol and isopropanol [58]. Such a membrane was characterized by high water-selective permeation at all the ethanol concentrations, with a separation factor >5000 and a water permeation flux >2 kg/m 2 /h [59].…”

Section: Membranesmentioning

confidence: 99%

Potential of Pervaporation and Vapor Separation with Water Selective Membranes for an Optimized Production of Biofuels—A Review

2017

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Abstract:The development of processes based on the integration of new technologies is of growing interest to industrial catalysis. Recently, significant efforts have been focused on the design of catalytic membrane reactors to improve process performance. In particular, the use of membranes, that allow a selective permeation of water from the reaction mixture, positively affects the reaction evolution by improving conversion for all reactions thermodynamically or kinetically limited by the presence of water. In this paper, how pervaporation (PV) and vapor permeation (VP) technologies can improve the catalytic performance of reactions of industrial interest is considered. Specifically, technological approaches proposed in the literature are discussed with the aim of highlighting advantages and problems encountered in order to address research towards the optimization of membrane reactor configurations for liquid biofuel production in large scale.

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“…This supported membrane configuration is inevitable in practical applications because flux through the membrane is inversely proportional to thickness; very thin membranes do not have the necessary mechanical properties and thus must be supported. Supported membranes are currently used in numerous applications including gas separation [5,6], water purification [3,7], and pervaporation [8].…”

Section: Introductionmentioning

confidence: 99%

Effect of pore penetration on transport through supported membranes studied by electron microscopy and pervaporation

Shin

Jiang

et al. 2017

Journal of Membrane Science

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A B S T R A C TIt has long been recognized that the performance of supported membranes comprising a thin, selective layer and a microporous support layer, is affected by penetration of the selective layer into the porous support. We have attempted to shed light on this phenomenon using a combination of pervaporation experiments and hard angle dark-field scanning transmission electron microscopy (HAADF-STEM). We use a nanophase-separated polystyrene-b-polydimethylsiloxane-b-polystyrene (SDS) as the selective layer and microporous polytetrafluoroethylene (PTFE) as the support layer. Effective permeabilities of butanol and water were measured as a function of selective layer thickness using a dilute butanol/water mixture as the feed in pervaporation. We were able to estimate the pore penetration layer thickness by comparing experiments with model calculations. We were also able to directly observe the pore penetration by HAADF-STEM. The choice in using a nanophaseseparated block copolymer as the selective layer enabled identification of the regions of pore penetration. The pore penetration layer thickness obtained from the HAADF-STEM micrographs corresponded well with estimates based on pervaporation.

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The first large-scale pervaporation plant using tubular-type module with zeolite NaA membrane

Cited by 592 publications

References 5 publications

Zeolite membranes – a review and comparison with MOFs

Zeolite membranes – a review and comparison with MOFs

Potential of Pervaporation and Vapor Separation with Water Selective Membranes for an Optimized Production of Biofuels—A Review

Effect of pore penetration on transport through supported membranes studied by electron microscopy and pervaporation

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