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Acta Physico-Chimica Sinica  2011, Vol. 27 Issue (06): 1501-1508    DOI: 10.3866/PKU.WHXB20110517
CATALYSIS AND SURFACE SCIENCE     
Aromatization of Ethanol over Metal Modified P/HZSM-5 Zeolite
ZHANG Shao-Long, LI Bin, ZHANG Fei-Yue, MA Li, HAN Yan-Hua, FAN Min-Guang
College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China
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Abstract  

A series of P/HZSM-5 zeolites modified with different metals (Cr, Co, Cu, Zn) were prepared by impregnation. The physicochemical features of the M-P/HZSM-5 catalysts were characterized by X-ray diffraction (XRD), BET surface area measurements, and temperature programmed desorption of ammonia (NH3-TPD). We investigated the catalytic activity upon the aromatization of ethanol. The results showed that the framework of the modified zeolites was retained while the specific surface area decreased and the distribution of the acid sites changed greatly. Cu-P/HZSM-5 gave excellent catalytic activity. When the P loading and the Cu loading were 3% and 5% on the HZSM-5 zeolites, respectively, P was modified first and then Cu, the aromatization of ethanol over the 5%Cu-3%P/HZSM-5 zeolite achieved 57.6% with a total light aromatic hydrocarbons (BTX) yield at 400 °C and a weight hourly space velocity (WHSV) of 1.0 h-1.



Key wordsEthanol      Aromatization      Light aromatic hydrocarbon      P/HZSM-5 zeolite     
Received: 02 December 2010      Published: 02 April 2011
MSC2000:  O643  
Fund:  

The project were supported by the National Natural Science Foundation of China (20763001) and Natural Science Foundation of Guangxi Province, China (0640004).

Corresponding Authors: ZHANG Fei-Yue     E-mail: fyzhang@gxu.edu.cn
Cite this article:

ZHANG Shao-Long, LI Bin, ZHANG Fei-Yue, MA Li, HAN Yan-Hua, FAN Min-Guang. Aromatization of Ethanol over Metal Modified P/HZSM-5 Zeolite. Acta Physico-Chimica Sinica, 2011, 27(06): 1501-1508.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB20110517     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2011/V27/I06/1501

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