Ultrasound-assisted rapid hydrothermal design of efficient nanostructured MFI-Type aluminosilicate catalyst for methanol to propylene reaction

A series of MFI-type aluminosilicate catalysts with ultasound-assisted rapid hydrothermal and conventional high temperature methods were synthesized at temperatures 250 300°C. The pure MFI framework was obtained when sonochemical method used prior to the conditions 250°C 3h. samples characterized by XRD, FESEM, BET-BJH, FTIR, TPD-NH 3 TG/DTG analyses. morphological analysis indicated coffin shape all particles different surface roughness. HZSM-5(UH-250) sample roughness proper structural properties improves access molecules active sites interior crystallites has an important beneficial effect in MTP catalytic reaction. So, it found methanol conversion improved selectivity toward olefins after 2100 min. • Ultrasound-assisted short time synthesis ZSM-5 catalyst 300 °C. Formation enhanced nucleation crystal growth. Potential characterization zeolites for process. influence ultrasound on propylene production. Proposed pathway deactivation mechanism. ultrasound-assisted examined this work. nanostructured materials approach heating evaluated prepared tested analyses such as TG/DTG. results confirmed that treatment process growth moderate Therefore, formation zeolite crystallinity textural, acidic ZSM-5(UH-250) compared other zeolites. This observation attributed relationship between perfect crystallization mechanism properties, which led producing efficient optimal performance. In manner, products carried out reaction 460 °C atmospheric pressure. slower regime exhibited constant level (84%) (78%) min stream. Moreover, also proposed.