Bifunctional and bimetallic Fe/ZSM-5 nanocatalysts for methanol to olefin reaction

Methanol converts to light olefins over ZSM-5 catalyst. In this work, we synthesized the high silica bifunctional and bimetallic nanocatalysts (Si/Al = 200) by hydrothermal and new wet incipient impregnation techniques, respectively. FE-SEM, XRD, BET, TG-DTA, FT-IR, TEM and NH3-TPD characterized the nanocatalysts. Fe incorporation influences the acidity and textural properties. The bifunctional nanocatalyst includes the uniform morphology and high BET surface area (359.30 m(2) g(-1)). The nanocatalysts represent the high methanol conversion (100%) and long-term stability (>140 h) in the methanol to olefin (MTO) reaction. The bimetallic nanocatalyst (0.5Fe-ZSM-5) represents the high propylene and total olefins (C-2(=)-C-4(=)) selectivity (51% and 80%, respectively). (C) 2016 Elsevier Ltd. All rights reserved.