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Regeneration of Al2O3-coated cordierite supported CuO for simultaneous SO2 and NO removal
Liu, QY; Liu, ZY; Huang, ZG; Liu, T; Zhang, J; Liu T(刘涛); Zhang J(张静)
2005
发表期刊INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷号44期号:4页码:651-657
通讯作者Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, State Key Lab Synchrotron Radiat, Beijing 100039, Peoples R China
文章类型Article
摘要Al2O3-Coated cordierite supported CuO catalysts exhibit desirable activities for simultaneous SO2 and NO removal from flue gas at 400 degreesC. This paper aims to investigate their regeneration behavior when it is conducted in 5% NH3/Ar at 400 degreesC. N-2 adsorption, scanning electron microscopy (SEM), temperature-programmed reduction (TPR), chemical analysis, extended X-ray adsorption fine structure (EXAFS), and X-ray diffraction (XRD) techniques are used in the study. Results show that a small amount of sulfates located in some of the pores of the catalysts cannot be reduced by NH3 at 400degreesC, which results in significant decreases in surface area and pore volume of the catalyst. This, in turn, reduces the mass transfer rate of SO2 and makes some of the reduced copper not reachable by SO2 in the time frame of the experiment (SO2 conversion of greater than 70%). These are responsible for the decrease in SO2 removal activity after the regeneration. Water washing of the catalyst after the first regeneration may remove the unreduciable sulfates and improve SO2 removal activity of the catalyst in the subsequent cycles. Regeneration and water wash do not influence NO removal activity, and the washed catalyst can run stably at high activities for SO2 and NO removal.
学科领域Engineering
研究领域[WOS]Engineering ; Engineering
DOI10.1021/ie049414h
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语种英语
研究领域[WOS]Engineering ; Engineering
WOS类目Engineering, Chemical
WOS记录号WOS:000227055500002
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被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238197
专题多学科研究中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Liu, QY,Liu, ZY,Huang, ZG,et al. Regeneration of Al2O3-coated cordierite supported CuO for simultaneous SO2 and NO removal[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2005,44(4):651-657.
APA Liu, QY.,Liu, ZY.,Huang, ZG.,Liu, T.,Zhang, J.,...&张静.(2005).Regeneration of Al2O3-coated cordierite supported CuO for simultaneous SO2 and NO removal.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,44(4),651-657.
MLA Liu, QY,et al."Regeneration of Al2O3-coated cordierite supported CuO for simultaneous SO2 and NO removal".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 44.4(2005):651-657.
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