What question did this study set out to answer?

The aim is to investigate the synthesis and catalytic properties of mordenite zeolites in toluene disproportionation.

February 27, 2026Petroleum Chemistry0 citations

Seed-Assisted Synthesis of Mordenite and Its Physicochemical and Catalytic Properties in Toluene Disproportionation

ADAnastasiia P. Dubtsova EAE. P. Andriako TBT. O. Bok

Key Points

The aim is to investigate the synthesis and catalytic properties of mordenite zeolites in toluene disproportionation.
Synthesis of MOR-type zeolites using seed-assisted hydrothermal crystallization
Characterization through nitrogen adsorption, XRD, SEM, XRF, and FTIR-Py
Catalytic performance testing in gas-phase toluene disproportionation
Synthesis yields zeolites with a Si/Al ratio of ~5
Materials exhibit the highest concentration of accessible Brønsted acid sites at 10 wt % seed content
Significantly enhanced catalytic activity noted in toluene disproportionation

Abstract

A series of MOR-type zeolites with a Si/Al ratio of ~5 were synthesized via seed-assisted hydrothermal crystallization. Their physicochemical properties were characterized by low-temperature nitrogen adsorption, X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray fluorescence spectrometry (XRF), and infrared spectroscopy of adsorbed pyridine (FTIR-Py). Their catalytic performance was tested in gas-phase toluene disproportionation. At a seed content of 10 wt % in the reaction mixture, the synthesized material exhibited the highest concentration of accessible Brønsted acid sites and the greatest catalytic activity.

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