Sequential Template Decomposition to Adjust the Performance of Imperfect Zeolite BEA Membranes

Reuß S, Reif B, Sanwald D, Schwieger W, Kaspereit M, Singh PS, Al-Thabaiti SA, Basahel SN, Mokhtar M, Obaid AY, Alyoubi AO (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Book Volume: 91

Pages Range: 953-960

Journal Issue: 7

DOI: 10.1002/cite.201800189

Abstract

Zeolite membranes offer superior thermal, chemical, and mechanical stability compared to polymeric membranes. However, it is still a challenge to prepare completely defect-free membranes without any intercrystalline voids, which is necessary for gas separation processes. In this study zeolite beta (*BEA) membranes on stainless-steel supports were prepared by applying the multiple in situ crystallization technique. The membranes were used as a model system to systematically study the decomposition of the organic structure directing agent tetraethylammoniumhydroxide (TEA-OH). It was evaluated if the organic decomposition products of TEA-OH can be used for enhancing the membranes selectivity. Post-treatment experiments have been carried out to adjust surface properties and pore size dimensions in the zeolitic membrane layer. The results show that membranes calcined at lower temperatures exhibit a higher gas selectivity.

Authors with CRIS profile

Involved external institutions

King Abdulaziz University (KAU) / جامعة الملك عبد العزيز Saudi Arabia (SA)

How to cite

APA:

Reuß, S., Reif, B., Sanwald, D., Schwieger, W., Kaspereit, M., Singh, P.S.,... Alyoubi, A.O. (2019). Sequential Template Decomposition to Adjust the Performance of Imperfect Zeolite BEA Membranes. Chemie Ingenieur Technik, 91(7), 953-960. https://dx.doi.org/10.1002/cite.201800189

MLA:

Reuß, Stephanie, et al. "Sequential Template Decomposition to Adjust the Performance of Imperfect Zeolite BEA Membranes." Chemie Ingenieur Technik 91.7 (2019): 953-960.

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