Article: The role of stirring type in the formation of uniform structures of ZSM-5 - gamma alumina enriched with Si Journal: International Journal of Oil, Gas and Coal Technology (IJOGCT) 2025 Vol.38 No.4 pp.429 - 442 Abstract: The synergistic enhancement of ZSM-5 zeolite and gamma alumina in catalysis is of great interest to the chemical industry. This study aims to overcome the individual drawbacks of these materials by using a combination of physical agitation techniques with variations of mechanical and sonochemical agitation. The morphological characterisation process includes scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), SEM elemental mapping, Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD). The study demonstrated that ZSM-5 was successfully formed with distinctive characteristics, as evidenced by SEM and FTIR analysis, which revealed the formation of core groups of ZSM-5. The sonochemical stirring effect yielded superior outcomes, as the stirring down to the micromolecular level facilitated effective agitation. The combination of ZSM-5 and γ-Al2O3 resulted in a uniform morphology, with the Si/Al ratio exhibiting a higher Si composition due to the addition of silica. The crystal planes of ZSM-5 and γ-Al2O3 were identified through XRD, indicating that ZSM-5 was successfully combined with γ-Al2O3 to form a uniform structure. [Received: August 19, 2024; Accepted: October 25, 2024] Inderscience Publishers - linking academia, business and industry through research

Title: The role of stirring type in the formation of uniform structures of ZSM-5 - gamma alumina enriched with Si

Authors: Dino Dewantara; Ambo Intang; Muhammad Djoni Bustan; Sri Haryati

Addresses: Department of Chemical Engineering, Universitas Sriwijaya, Ogan Ilir, Indonesia ' Department of Chemical Engineering, Universitas Sriwijaya, Ogan Ilir, Indonesia ' Department of Chemical Engineering, Universitas Sriwijaya, Ogan Ilir, Indonesia ' Department of Chemical Engineering, Universitas Sriwijaya, Ogan Ilir, Indonesia

Abstract: The synergistic enhancement of ZSM-5 zeolite and gamma alumina in catalysis is of great interest to the chemical industry. This study aims to overcome the individual drawbacks of these materials by using a combination of physical agitation techniques with variations of mechanical and sonochemical agitation. The morphological characterisation process includes scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), SEM elemental mapping, Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD). The study demonstrated that ZSM-5 was successfully formed with distinctive characteristics, as evidenced by SEM and FTIR analysis, which revealed the formation of core groups of ZSM-5. The sonochemical stirring effect yielded superior outcomes, as the stirring down to the micromolecular level facilitated effective agitation. The combination of ZSM-5 and γ-Al₂O₃ resulted in a uniform morphology, with the Si/Al ratio exhibiting a higher Si composition due to the addition of silica. The crystal planes of ZSM-5 and γ-Al₂O₃ were identified through XRD, indicating that ZSM-5 was successfully combined with γ-Al₂O₃ to form a uniform structure. [Received: August 19, 2024; Accepted: October 25, 2024]

Keywords: ZSM-5; γ-Al₂O₃; material combined; physical-mechanical; physical sonochem.

DOI: 10.1504/IJOGCT.2025.149842

International Journal of Oil, Gas and Coal Technology, 2025 Vol.38 No.4, pp.429 - 442

Received: 19 Aug 2024
Accepted: 01 Dec 2024
Published online: 14 Nov 2025 *

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Title: The role of stirring type in the formation of uniform structures of ZSM-5 - gamma alumina enriched with Si

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