Effect of seeding methods on growth of NaA zeolite membranes

Liu, Yanmei; Yang, Zhanzhao; Yu, Congli; Gu, Xuehong; Xu, Nanping

doi:10.1016/j.micromeso.2011.03.016

Cited by 73 publications

(32 citation statements)

References 34 publications

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“…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. 242 In 2011, the Jiangsu Nine Heaven High-Tech Co. Ltd was founded as a spin-off, to promote the commercial application of the LTA membrane dehydration technique. A production line of LTA zeolite membranes with the productivity of 10 000 m 2 per year has also been established.…”

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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“…Therefore, a seeding layer is deposited on the membrane support at first and the membrane layer is grown in a second step via hydrothermal synthesis [62][63][64][65][66][67]. Seeds can be prepared either by bottom-up approaches [15] or by top-down techniques ex situ.…”

Section: Synthesis Of Zeolite Membranesmentioning

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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“…Because synthesis process of this type of membrane is hurdle and take long time [6]. Therefore, using secondary growth method as a vital technique for accelerating the synthesis of DD3R zeolite membrane with high quality is needed [7,8]. Effective seeding is one of the essential step to obtain thin and defect free zeolite membranes that prepared with secondary growth method on mesoporous tubular supports.…”

Section: -Introductionmentioning

confidence: 99%

Study the Effect of Seeding Suspension Concentration of DD3R Particles on the Modified Surface of Α-Alumina Support for Preparing DD3R Zeolite Membrane with High Quality

Meshkat

Vaezi

Babaluo

2018

ESJ

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In this study, seeding of DD3R particles as an important step in the synthesis of DD3R membrane with secondary growth method was investigated. Dip-coating method is used for seeding of DD3R particles on the modified surface of α-alumina supports. 0.1, 0.2 and 0.3 wt% aqueous suspensions of the DD3R seeds were prepared and each support was coated three times with dipping time of 240 s. Scanning electron microscopy (SEM) analysis was used for the investigation of the quality of seed layer formed on the support. It is shown that the uniform layer of seeds was formed with 0.2 wt% seed suspension concentration. DD3R zeolite membrane was synthesized via hydrothermal method on the support seeded with 0.2 wt% seed suspension concentration. The X-ray diffraction and SEM analysis confirmed the synthesis of uniform DD3R zeolite membrane layer on the support which can be due to the uniform distribution of the DD3R seeds. Single gas permeation tests of N2, CO2 and CH4 were carried out, so that good perm-selectivity for gas mixtures was observed.

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Effect of seeding methods on growth of NaA zeolite membranes

Cited by 73 publications

References 34 publications

Zeolite membranes – a review and comparison with MOFs

Zeolite membranes – a review and comparison with MOFs

Zeolite Membranes in Catalysis—From Separate Units to Particle Coatings

Study the Effect of Seeding Suspension Concentration of DD3R Particles on the Modified Surface of Α-Alumina Support for Preparing DD3R Zeolite Membrane with High Quality

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