Citation: Aboul-Fotouh Sameh M. K., Ali Laila I., Naghmash Mona A., Aboul-Gheit Noha A. K.. Effect of the Si/Al ratio of HZSM-5 zeolite on the production of dimethyl ether before and after ultrasonication[J]. Journal of Fuel Chemistry and Technology, ;2017, 45(5): 581-588. shu

Effect of the Si/Al ratio of HZSM-5 zeolite on the production of dimethyl ether before and after ultrasonication

1.
Chemistry Department, Faculty of Science, Northern Boder University, Arar 91431, Kingdom of Saudi Arabia
2.
Chemistry Department, Faculty of Education, Ain Shams University, Roxy, Cairo 11757, Egypt
3.
Egyptian Petroleum Research Institute, Nasr City, Cairo 11787, Egypt

Corresponding author: Aboul-Fotouh Sameh M. K., samehaboulfotouh@yahoo.com
Received Date: 21 December 2016
Revised Date: 27 March 2017

Figures(12)

A series of as-synthesized HZSM-5 zeolites with different Si/Al ratios (25, 90, 120, 240 and 400) were post-treated by ultrasonication for an optimum time of 60 min. The morphology, acidity and textural properties of HZSM-5 were characterized with XRD, SEM, N₂ adsorption and NH₃-TPD techniques. The catalytic performance was evaluated by dehydration of methanol to dimethyl ether (DME), which is a promising gaseous automotive fuel in future. It was found that the Si/Al ratio of HZSM-5 had considerable impacts on its catalytic performance for dehydration of methanol to DME. Its activity increased with decreasing Si/Al ratio from 400 to 25. Ultrasonication of HZSM-5 could significantly improve its catalytic performance.
- Ultrasonication-HZSM-5,
- -dimethyl,
- ether-Si/Al,
- ratio
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沈阳化工大学材料科学与工程学院沈阳 110142