Dehydrating performance of commercial LTA zeolite membranes and application to fuel grade bio-ethanol production by hybrid distillation/vapor permeation process

Sato, K.; Aoki, Katsuhiko; Sugimoto, Kazunori; Izumi, Kou; Inoue, Soushi; Saito, Junji; Ikeda, Shiro; Nakane, Takashi

doi:10.1016/j.micromeso.2007.10.053

Cited by 84 publications

(44 citation statements)

References 6 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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“…Zeolite A in its as-synthesized form (molecular sieve 4A) has the unit cell formula, Na 12 (AlO 2 ) 12 •nH 2 O. Sodium ions can be exchanged by other calcium, silver, potassium or other metal ions to yield adsorbents with desired properties for different applications.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of 4A Zeolite and Characterization of Calcium- and Silver-Exchanged Forms

Golbad¹,

Khoshnoud²,

Abu‐Zahra³

2017

JMMCE

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Calcium exchanged A type zeolite is extensively used as an adsorbent in petroleum and gas purification application. The precursor of calcium and silver-exchanged zeolite was prepared in a hydrothermal process, followed by an exchange process. In this study, LTA zeolite was synthesized. Calcium-exchanged and silver-exchanged molecular sieves were prepared and characterized by a series of techniques, such as scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, etc. Physical properties of Caand Ag-exchanged zeolite A, such as surface structure, crystal structure, cation exchange capacity, and the ion-exchange properties were measured. Water adsorption studies using thermogravimetric method indicated that water molecules are more strongly bound in the Ca-A zeolite compared to Ag-A zeolite. XPS studies confirmed the presence of highly dispersed cationic silver species at exchange sites. The results of this study indicated that sodium was successfully exchanged with the calcium and silver in both Ca-and Ag-exchanged zeolite frameworks. High cation exchange capacity, tailored aperture size, high porosity and specific surface area, as well as high thermal stability make cation-exchanged A type zeolite a successful candidate for adsorption, ion exchange, and catalysis applications.

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“…It is the use of hydrophilic zeolite membranes in the dehydration of organic solvents. In detail, NaA membranes have been used in a large-scale pervaporation plant mainly for alcohols by BNRI (Mitsui Holding) [43], and further progress on LTA membranes in the pervaporation separation of water was achieved over the years [44][45][46][47]. An important consideration on the way for industrial application might be the availability of membranes characterized by suitable performances at reasonable prices.…”

Section: Open Accessmentioning

confidence: 99%

Zeolite Membranes in Catalysis—From Separate Units to Particle Coatings

Dragomirova

Wohlrab

2015

Catalysts

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Literature on zeolite membranes in catalytic reactions is reviewed and categorized according to membrane location. From this perspective, the classification is as follows: (i) membranes spatially decoupled from the reaction zone; (ii) packed bed membrane reactors; (iii) catalytic membrane reactors and (iv) zeolite capsuled catalyst particles. Each of the resulting four chapters is subdivided by the kind of reactions performed. Over the whole sum of references, the advantage of zeolite membranes in catalytic reactions in terms of conversion, selectivity or yield is evident. Furthermore, zeolite membrane preparation, separation principles as well as basic considerations on membrane reactors are discussed.

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Dehydrating performance of commercial LTA zeolite membranes and application to fuel grade bio-ethanol production by hybrid distillation/vapor permeation process

Cited by 84 publications

References 6 publications

Zeolite membranes – a review and comparison with MOFs

Zeolite membranes – a review and comparison with MOFs

Synthesis of 4A Zeolite and Characterization of Calcium- and Silver-Exchanged Forms

Zeolite Membranes in Catalysis—From Separate Units to Particle Coatings

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