Catalytic performance of Co/H<em>β</em> in N<sub>2</sub>O decomposition

XU Xiang-yang; GU Cheng; WANG Hong; ZHANG Yuan-yuan; KE Yan; ZHANG Cheng-le; WANG Ming-jin; SONG Bao-hua; LI Cui-qing

Volume 42 Issue 07

Jul. 2014

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Article Navigation > Journal of Fuel Chemistry and Technology > 2014 > 42(07): 877-883

XU Xiang-yang, GU Cheng, WANG Hong, ZHANG Yuan-yuan, KE Yan, ZHANG Cheng-le, WANG Ming-jin, SONG Bao-hua, LI Cui-qing. Catalytic performance of Co/Hβ in N2O decomposition[J]. Journal of Fuel Chemistry and Technology, 2014, 42(07): 877-883.

Citation:

XU Xiang-yang, GU Cheng, WANG Hong, ZHANG Yuan-yuan, KE Yan, ZHANG Cheng-le, WANG Ming-jin, SONG Bao-hua, LI Cui-qing. Catalytic performance of Co/Hβ in N₂O decomposition[J]. Journal of Fuel Chemistry and Technology, 2014, 42(07): 877-883.

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Catalytic performance of Co/Hβ in N₂O decomposition

1.
College of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617;
2.
Beijing University of Chemical Technology, Beijing 100029, China;
3.
CECEP Liuhe Talroad Environmental Technology Co., Ltd, Beijing 100085, China

Received Date: 2014-01-27
Rev Recd Date: 2014-04-14
Publish Date: 2014-07-30

Abstract

Abstract

The catalyst of cobalt oxide supported on Hβ zeolite (Co/Hβ) was prepared by impregnation method and characterized by XRD, H₂-TPR, NH₃-TPD, and SEM. The effects of calcination temperature and cobalt loading on the catalytic performance of Co/Hβ in N₂O decomposition were investigated. The results showed that cobalt species are present mainly in the form of Co₃O₄ spinel oxide. The acidity, acid amount and redox property of the Co/Hβ catalyst were significantly affected by the calcination temperature; the Co-Al-O species that is difficult to reduce by hydrogen is formed at a calcination temperature over 700℃. The catalytic activity of the Co/Hβ catalyst was affected by the calcintion temperature and cobalt loading. The Co/Hβ catalyst calcined at 600℃ and with a cobalt loading of 10%~15% exhibits excellent catalytic activity in N₂O decomposition; the temperatures t₁₀, t₅₀ and t₉₅ for N₂O decomposition are 325~329℃, 364~367℃, and 406~408℃, respectively.
- N₂O,
- catalytic decomposition,
- cobalt,
- H&beta,
- zeolite,
- calcination temperature

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References(22)

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