Citation: Tong ZHANG, Jing SHI, Zhao-Teng XUE, Dong-Sen MAO, Jia-Wei TENG. Synthesis and catalytic activity in n-hexane isomerization of EU-1 zeolite[J]. Chinese Journal of Inorganic Chemistry, ;2023, 39(4): 659-670. doi: 10.11862/CJIC.2023.038 shu

Synthesis and catalytic activity in n-hexane isomerization of EU-1 zeolite

Tong ZHANG ^{1, 2} ,
Jing SHI ² ,
Zhao-Teng XUE ¹ ,
Dong-Sen MAO ^1,, ,
Jia-Wei TENG ^2,,

1.
School of Chemical and Environment Engineering, Shanghai Institute of Technology, Shanghai 201418, China
2.
State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Sinopec Shanghai Research Institute of Petrochemical Technology, Shanghai 201208, China

Corresponding author: Dong-Sen MAO, dsmao@sit.edu.cn Jia-Wei TENG, tengjw@sinopec.com
Received Date: 11 October 2022
Revised Date: 9 March 2023

Figures(15)

In this study, a series of pure-phase EU-1 zeolites were synthesized by introducing seeds into a series of synthetic gels with different SiO₂/Al₂O₃ ratios (n_SiO₂/n_Al₂O₃, containing pure silicon gel).The effect of the aluminum source, the amount of template and seed on the crystallinity, and the morphology and size of EU-1 zeolite were investigated.The effects of different SiO₂/Al₂O₃ ratios synthesis systems on the crystallinity, crystal size, acidic property, specific surface area, and pore volume of the samples were emphatically studied.Pure phase EU-1 was synthesized not only in a high-silicon system but also in an aluminum-free system by the seeding method.The results were plotted into a ternary plot of the synthesis conditions of pure phase EU-1 zeolite.It is obvious from the ternary plot that the crystal seed method can significantly expand the synthesis region of pure phase EU1 zeolite.Pt/H-EU-1 was applied to catalyze the n-hexane isomerization reaction.The results showed that the catalyst had excellent n-hexane isomerization activity and stability, and high selectivity to isoparaffins.
- EU-1 zeolite,
- SiO₂/Al₂O₃ ratio,
- directing agent,
- seed crystal,
- synthetic region,
- n-hexane isomerization
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