Influence of nitric acid modified activated coke on its surface properties and desulphurization performance by orthogonal test

GUO Jiao-jiao; YANG Yong-zhen; ZHANG Yong-qi; FANG Yi-tian; LIU Xu-guang

Volume 40 Issue 08

Aug. 2012

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Article Navigation > Journal of Fuel Chemistry and Technology > 2012 > (08): 1014-1018

GUO Jiao-jiao, YANG Yong-zhen, ZHANG Yong-qi, FANG Yi-tian, LIU Xu-guang. Influence of nitric acid modified activated coke on its surface properties and desulphurization performance by orthogonal test[J]. Journal of Fuel Chemistry and Technology, 2012, (08): 1014-1018.

Citation:

GUO Jiao-jiao, YANG Yong-zhen, ZHANG Yong-qi, FANG Yi-tian, LIU Xu-guang. Influence of nitric acid modified activated coke on its surface properties and desulphurization performance by orthogonal test[J]. Journal of Fuel Chemistry and Technology, 2012, (08): 1014-1018.

Citation:

GUO Jiao-jiao, YANG Yong-zhen, ZHANG Yong-qi, FANG Yi-tian, LIU Xu-guang. Influence of nitric acid modified activated coke on its surface properties and desulphurization performance by orthogonal test[J]. Journal of Fuel Chemistry and Technology, 2012, (08): 1014-1018.

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Influence of nitric acid modified activated coke on its surface properties and desulphurization performance by orthogonal test

1.
College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
2.
Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;
3.
Research Center on Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China

Received Date: 2011-12-03
Rev Recd Date: 2012-03-17
Publish Date: 2012-08-31

Abstract

Abstract

An activated coke was modified by HNO₃. The influences of HNO₃ concentration, activation temperature, activation time and calcination temperature on surface properties the activated coke were investigated by orthogonal experiments. The SO₂ adsorption capacities of the modified activated coke were examined in a fixed bed reactor. The surface acidity-basicity, specific surface area and pore structure coke were characterized by acid-base titration, N₂ adsorption, iodine adsorption value and Fourier transform infrared spectrometry, respectively. The results show that HNO₃ modification raises the specific surface area and surface basicity of the activated coke. Calcination improves the surface basicity. HNO₃ modification obviously enhances the desulfurization performance of the activated coke.
- flue gas desulfurization,
- HNO₃ oxidation,
- activated coke,
- surface properties

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References(9)

References

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