Citation: Yingli Wang, Xin Chen, Zhengxi Yu, Lei Xu. Methanol aromatization over HZSM-5 catalysts modified with different zinc salts[J]. Chinese Journal of Catalysis, ;2014, 35(10): 1740-1751. doi: 10.1016/S1872-2067(14)60145-5 shu

Methanol aromatization over HZSM-5 catalysts modified with different zinc salts

^a,b ,
Yingli Wang ^a ,
Xin Chen ^a ,
Zhengxi Yu ^a ,
Lei Xu ^a,,

1.
a Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, Chinab University of Chinese Academy of Sciences, Beijing 100049, China

Corresponding author: Lei Xu,
Received Date: 22 March 2014
Available Online: 9 April 2014
Fund Project:

HZSM-5 catalysts modified with various Zn salts, namely zinc sulfate, zinc acetate, zinc nitrate, and zinc chloride, were prepared using an impregnation method. The resultant catalysts were characterized by X-ray diffraction, N₂ adsorption, thermogravimetry-mass spectrometry, temperature-programmed desorption of NH3, and infrared spectroscopy using pyridine as the probe molecule. The methanol-to-aromatic (MTA) performance over the modified catalysts was investigated. The results showed that the type of Zn species in the catalyst significantly influenced the catalyst surface acidity. The distribution of acid sites and Zn species in the HZSM-5 catalyst modified with zinc sulfate effectively improved the MTA performance.
- HZSM-5 zeolite,
- Zinc salt,
- Methanol,
- Aromatization
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沈阳化工大学材料科学与工程学院沈阳 110142