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Gao Hong, Zhang Yong, Ning Ping, Zhang Aimin, Wang Xueqian. Research on dynamics and reaction mechanism of PH3 and H2S removal by metallic modified activated carbon[J]. Chinese Journal of Environmental Engineering, 2009, 3(2): 301-305.
Citation: Gao Hong, Zhang Yong, Ning Ping, Zhang Aimin, Wang Xueqian. Research on dynamics and reaction mechanism of PH3 and H2S removal by metallic modified activated carbon[J]. Chinese Journal of Environmental Engineering, 2009, 3(2): 301-305.
shu

Research on dynamics and reaction mechanism of PH3 and H2S removal by metallic modified activated carbon

  • 1.

    Faculty of Environmental Science & Engineering, Kunming University of Science and Technology, Kunming 650093

  • 2.

    Kunming Sino-Platinum Metals Catalyst Co., Ltd., Kunming 650101

  • Received Date: 06/08/2008
    Accepted Date: 07/04/2008
    Fund Project:
  • In order to comprehensively utilize CO in yellow phosphorus off-gas, activated carbon (AC) modified with Cu2+ and Mn+ was used to remove PH3 and H2S from yellow phosphorus offgas. XPS、TG/DTA and nitrogen adsorption were measured, and average activation energy was calculated to illustrate the dynamics and reaction mechanism. Reaction orders were -0.8 and -0.76 for PH3 and H2S respectively; and average activation energies were 1 247.6 J/mol and 134.4 J/mol for PH3 and H2S respectively. Average reaction rate of PH3 and H2S on metallic AC (MMAC) increased markedly with the decrease of diameter and increase of flow rate. XPS, TGA, DTA and nitrogen adsorption indicated that the removal of PH3 and H2S by MMAC was a catalytic-adsorptive process, in which PH3 and H2S was firstly oxidized catalytically on the surface of MMAC, and then deposited and adsorbed on the surface.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Research on dynamics and reaction mechanism of PH3 and H2S removal by metallic modified activated carbon

  • Received Date: 06/08/2008
  • Accepted Date: 07/04/2008
Fund Project:

Abstract: In order to comprehensively utilize CO in yellow phosphorus off-gas, activated carbon (AC) modified with Cu2+ and Mn+ was used to remove PH3 and H2S from yellow phosphorus offgas. XPS、TG/DTA and nitrogen adsorption were measured, and average activation energy was calculated to illustrate the dynamics and reaction mechanism. Reaction orders were -0.8 and -0.76 for PH3 and H2S respectively; and average activation energies were 1 247.6 J/mol and 134.4 J/mol for PH3 and H2S respectively. Average reaction rate of PH3 and H2S on metallic AC (MMAC) increased markedly with the decrease of diameter and increase of flow rate. XPS, TGA, DTA and nitrogen adsorption indicated that the removal of PH3 and H2S by MMAC was a catalytic-adsorptive process, in which PH3 and H2S was firstly oxidized catalytically on the surface of MMAC, and then deposited and adsorbed on the surface.

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