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A facile synthesis of hierarchical Nanosized zeolite Beta and its application in direct crude oil hydrocracking
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DOI：10.1016/j.catcom.2024.106871.png)
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Abstract
En 中文
This study focuses on the synthesis of hierarchical nano-sized beta zeolites that exhibit enhanced catalytic properties through zeolite particle size reduction (to <80 nm) and the introduction of mesopores inside and between particles to improve diffusion of large molecules. The zeolites were produced by desilication and with template-including nano-sized beta as starting material. The samples were characterized by BET, XRD, XRF, solid-state NMR, TG-DTA, and NH3-TPD. Our method uses a shortened synthesis process to yield zeolites with higher surface area, pore volume (>1.0 ml/g), and stronger acidity that those developed by other methods. The zeolite reaction performances were evaluated in crude oil hydrocracking under commercial hydrocracker operating conditions in a pilot plant unit. The testing results showed that the catalyst including the hierarchical nanosized zeolite beta had much higher heavy oil conversion activity and naphtha selectivity.
Keywords:
Zeolite beta
Crude oil to chemicals
Nanozeolites
Hydrocracking
Hierarchical structure
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