Abstract
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 (359.30m2g−1). The nanocatalysts represent the high methanol conversion (100%) and long-term stability (>140h) in the methanol to olefin (MTO) reaction. The bimetallic nanocatalyst (0.5Fe–ZSM-5) represents the high propylene and total olefins (C2C4) selectivity (51% and 80%, respectively).
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