The effect of copper valence on catalytic combustion of styrene over the copper based catalysts in the absence and presence of water vapor

Hongyan Pan; Zhiyan He; Qian Lin; Fei Liu; Zhong Li

doi:10.1016/j.cjche.2015.11.020

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The effect of copper valence on catalytic combustion of styrene over the copper based catalysts in the absence and presence of water vapor

第25届中国过程控制会议专栏 | Updated：2026-01-06

- The effect of copper valence on catalytic combustion of styrene over the copper based catalysts in the absence and presence of water vapor
- Chinese Journal of Chemical Engineering Vol. 24, Issue 4, Pages: 468-474(2016)
- Affiliations：
  
  1. 2 Key Laboratory of Guizhou Province for Green Chemical Industry and Clean Energy Technology,Guiyang,China,550025
  2. 3 Research Institute of Chemical Engineering, South China University of Technology,Guangzhou,China,510640
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2015.11.020
  CLC：
- Published：2016
- Accepted：
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Hongyan Pan, Zhiyan He, Qian Lin, Fei Liu, Zhong Li. The effect of copper valence on catalytic combustion of styrene over the copper based catalysts in the absence and presence of water vapor[J]. Chin.J.Chem.Eng., 2016, 24(4): 468-474.
DOI：

Hongyan Pan, Zhiyan He, Qian Lin, Fei Liu, Zhong Li. The effect of copper valence on catalytic combustion of styrene over the copper based catalysts in the absence and presence of water vapor[J]. Chin.J.Chem.Eng., 2016, 24(4): 468-474. DOI： 10.1016/j.cjche.2015.11.020.

摘要

Abstract

Catalysts CuO

/γ-Al

-IH and CuO

/γ-Al

-IM were prepared

characterized

and tested for styrene combustion in the absence and presence of water vapor. The effect of copper valence of the catalysts on the catalytic activity for styrene combustion was discussed using the theory of hard soft acids and bases (HSAB). The results showed that the existence of water vapor in feed stream inhibited the catalytic activity for styrene combustion due to the competition adsorption of water molecule. HSAB theory confirmed that the local soft acidity of the catalyst CuO

/γ-Al

-IH was much stronger than that of the catalyst CuO

/γ-Al

-IM because of the higher content of soft acid Cu

on its surface

which increased the adsorption ability toward soft base of styrene and reduced the adsorption toward hard base of water vapor

and thus increased the catalytic activity for styrene combustion and weakened the negative influence of water vapor.

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