Citation: Sameh M. K. Aboul-Fotouh, Noha A. K. Aboul-Gheit, Mona A. Naghmash. Dimethylether production on zeolite catalysts activated by Cl^-, F^- and/or ultrasonication[J]. Journal of Fuel Chemistry and Technology, ;2016, 44(4): 428-436. shu

Dimethylether production on zeolite catalysts activated by Cl^-, F^- and/or ultrasonication

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

Corresponding author: Sameh M. K. Aboul-Fotouh, samehaboulfotouh@yahoo.com
Received Date: 7 November 2015
Revised Date: 21 January 2016

Figures(13)

The chlorinated and fluorinated zeolite catalysts were prepared by the impregnation of zeolites (H-ZSM-5, H-MOR or H-Y) using two halogen precursors (ammonium chloride and ammonium fluoride) in this study. The influence of ultrasonic irradiation was evaluated for optimizing both halogen precursors for production of dimethylether (DME) via methanol dehydration in a fixed bed reactor. The catalysts were characterized by SEM, XRD, BET and NH₃-TPD. The reaction conditions were temperatures from 100 to 300 ℃ and a WHSV =15.9 h^-1. All halogenated catalysts show higher catalytic activities at all reaction temperatures studied. However, the halogenated zeolite catalysts prepared under ultrasonic irradiation show higher performance for DME formation. The chlorinated zeolite catalysts show higher activity and selectivity for DME production than the respective fluorinated versions.
- ultrasonication,
- DME,
- zeolite,
- Cl^-,
- F^-
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Dimethylether production on zeolite catalysts activated by Cl-, F- and/or ultrasonication

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通讯作者: 陈斌, bchen63@163.com

Dimethylether production on zeolite catalysts activated by Cl^-, F^- and/or ultrasonication