A study of Silicalite-1 and Al-ZSM-5 membrane synthesis on stainless steel supports

Mabande, G.T.P.; Pradhan, Gajendra Kumar; Schwieger, Wilhelm; Hanebuth, M.; Dittmeyer, Roland; Selvam, T.; Zampieri, A.; Baser, Hasan; Herrmann, R.

doi:10.1016/j.micromeso.2004.07.009

Cited by 54 publications

(33 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[ 2 ] Most importantly, zeolites are playing an important role in the development of hierarchical porous structures. [4][5][6][7][8] Therefore, many efforts have been made to combine the advantages offered by supported zeolite fi lms for membrane technology [ 12 ] with those of zeolite composites or coatings for catalytic and adsorption applications. [ 5 ] The great number of different porous carriers, which can be used and the huge number of zeolite types make it possible to fi ne-tune the materials for specifi c technical applications.…”

Section: Introductionmentioning

confidence: 99%

Zeolitic Materials with Hierarchical Porous Structures

et al. 2011

View full text Add to dashboard Cite

During the past several years, different kinds of hierarchical structured zeolitic materials have been synthesized due to their highly attractive properties, such as superior mass/heat transfer characteristics, lower restriction of the diffusion of reactants in the mesopores, and low pressure drop. Our contribution provides general information regarding types and preparation methods of hierarchical zeolitic materials and their relative advantages and disadvantages. Thereafter, recent advances in the preparation and characterization of hierarchical zeolitic structures within the crystallites by post-synthetic treatment methods, such as dealumination or desilication; and structured devices by in situ and ex situ zeolite coatings on open-cellular ceramic foams as (non-reactive as well as reactive) supports are highlighted. Specific advantages of using hierarchical zeolitic catalysts/structures in selected catalytic reactions, such as benzene to phenol (BTOP) and methanol to olefins (MTO) are presented.

show abstract

Section: Introductionmentioning

confidence: 99%

Zeolitic Materials with Hierarchical Porous Structures

et al. 2011

View full text Add to dashboard Cite

show abstract

“…In the first approach zeolite layers are grown on inert supports (e.g. ceramics or stainless steel) from gels or solutions containing all desired reactants for the zeolite formation [48,49]. In the second approach at least one reactant for the growth of the zeolite layer (generally silicon or aluminum) is taken from the support either by extraction from an inert support matrix [50,51] or by partial support dissolution [52,53] while all other reactants are supplied from a reactive solution.…”

Section: Adsorber Conceptsmentioning

confidence: 99%

Zeolite/aluminum composite adsorbents for application in adsorption refrigeration

Bauer¹,

Herrmann²,

Mittelbach³

et al. 2009

Int. J. Energy Res.

Self Cite

135

View full text Add to dashboard Cite

SUMMARYThermally driven adsorption refrigerators, which transform available low-temperature waste heat (from processes, engines, solar radiation, district heat) into useful cooling energy, are a very promising and green technology to reduce the demand for primary energy. To improve their refrigeration performance, new zeolite/aluminum composite adsorbents with optimized sorption and heat transfer properties were prepared following the partial support transformation technique. A direct and binderless contact between the closed zeolite layer and the metal could be established which enables best thermal diffusivity. It is shown by measurements of thermal sorption capacities and kinetics on planar samples and on coated heat exchangers that this causes best sorption performance combined with high mechanical stability.

show abstract

“…Mabande et al [11] and Bonaccorsi and Proverbio [12] successfully prepared ZSM-5 and zeolite A coatings on stainless steel after thermal oxidation and/or alkali surface treatments. This suggests that such surface treatments are effective in enhancing the adherence strength of the zeolite grains formed on the present foamed stainless steel substrate.…”

Section: Adherence Strength Of the Zeolite Productsmentioning

confidence: 99%

Zeolite coating on foamed stainless steel by in-situ crystallization method

et al. 2006

View full text Add to dashboard Cite

Faujasite-type zeolite films were prepared on foamed stainless steel by the in-situ crystallization method. Precursor solutions were prepared by dissolving water glass and NaAlO 2 in a NaOH solution and aged at room temperature for two days. The concentrations of the starting materials were varied from 0.29 to 2.3 M (in SiO 2 concentration) keeping the molar ratios of Na 2 O:SiO 2 :Al 2 O 3 fixed at 3.6:3.0:1.0. The foamed stainless steel substrate had about 90% of porosity and an average pore size of 600 μm. It was dip-coated in the precursor solution four times, then hydrothermally treated at 80 • , 110 • and 150 • C for 6-48 h. The XRD patterns and SEM photographs revealed that faujasite-type zeolite was formed predominantly at a SiO 2 concentration of 1.1 M, temperature of 110 • C and duration of 24 h, with a product particle size of 2-5 μm. At higher concentrations of the precursor solution, hydroxylsodalite becomes the major product rather than faujasite-type zeolite. The adherence strength of the zeolite grains deposited on the foamed stainless steel is higher in the in-situ crystallization method than when a conventional solution method is used. Thus, the insitu crystallization method is concluded to be effective for preparing zeolite films even on metal substrates.

show abstract

A study of Silicalite-1 and Al-ZSM-5 membrane synthesis on stainless steel supports

Cited by 54 publications

References 38 publications

Zeolitic Materials with Hierarchical Porous Structures

Zeolitic Materials with Hierarchical Porous Structures

Zeolite/aluminum composite adsorbents for application in adsorption refrigeration

Zeolite coating on foamed stainless steel by in-situ crystallization method

Contact Info

Product

Resources

About