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三效催化转化器催化剂硫中毒机理

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蔡皓, 龚金科, 鄂加强, 耿玉鹤, 余明果. 三效催化转化器催化剂硫中毒机理[J]. 环境工程学报, 2013, 7(6): 2278-2284.
引用本文: 蔡皓, 龚金科, 鄂加强, 耿玉鹤, 余明果. 三效催化转化器催化剂硫中毒机理[J]. 环境工程学报, 2013, 7(6): 2278-2284.
shu
Cai Hao, Gong Jinke, E Jiaqiang, Geng Yuhe, Yu Minguo. Sulfur poisoning mechanism of three way catalytic converter[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2278-2284.
Citation: Cai Hao, Gong Jinke, E Jiaqiang, Geng Yuhe, Yu Minguo. Sulfur poisoning mechanism of three way catalytic converter[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2278-2284.
shu

三效催化转化器催化剂硫中毒机理

  • 1.

    湖南大学机械与运载工程学院, 长沙 410082

  • 2.

    广汽三菱汽车股份有限公司, 长沙 410014

  • 基金项目:

    湖南省科学技术厅科技计划重点项目(2009CK2001)

    湖南大学"青年教师成长资助计划"资助项目

  • 中图分类号: TK411+.5

Sulfur poisoning mechanism of three way catalytic converter

  • 1.

    College of Mechanical and Automotive Engineering, Hunan University, Changsha 410082, China

  • 2.

    Guangzhou Automobile Group Mitsubishi Motors Co. Ltd., Changsha 410014, China

  • Fund Project:

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  • 摘要: 在一种详细的表面反应机理中加入了包含贵金属催化剂与助催化剂的硫中毒基元反应,建立了新的三效催化转化器催化反应机理。利用该机理进行了稳态工况数值模拟,得到了各排气污染物起燃温度与转化效率随尾气中SO2浓度的变化情况。采用灰色关联分析了SO2浓度与各排气组分转化效率的关联度,结果表明,SO2浓度对C3H6与NOx转化效率影响最大。对三效催化转化器的催化剂活性设计具有重要的参考价值,并对其工况设计及优化提供了指导。
    Abstract: Combining a detailed catalytic surface reaction mechanism with noble metal and promoter elementary reactions, a new three way catalytic reaction mechanism was established. Based on the new mechanism, steady condition numerical simulation was carried out, and the change of light off temperatures and conversion efficiency with various SO2 contents was gotten. By grey relational analysis, the relational grade between conversion efficiency and SO2 content was gotten. And, the result showed that SO2 content was the most important influence on C3H6 and NOx conversion efficiency. This provides an important reference to the improvement of activity design of TWC, and may provide guidance for the condition design and optimization of a catalytic converter.
  • [1] Gandhi H. S., Shelef M. Effects of sulphur on noble metal automotive catalysts.Applied Catalysis,1991,77(2):175-186
    [2] Donald D. Beck,John W. Sommers,Craig L. Dimaggio.Impact of sulfur on model palladium-only catalysts under simulated three-way operation.Applied Catalysis B: Environmental,1994,3(2-3):205-227
    [3] Calvin H. Bartholomew,Gustavo A. Fuentes.Catalyst Deactivation 1997:Studies In Surface Science And Catalysis.United States:Elsevier Science,1997
    [4] Crucq A. Catalysis And Automotive Pollution Control II.United States:Elsevier Science,1991
    [5] Twu J.,Chuang C.J.,Chang K.I.Raman spectroscopy studies on the sulfation of cerium oxide.Applied Catalysis B: Environmental,1997,12(4):309-324
    [6] Yu T. C.,Shaw H.The effect of sulfur poisoning on methane oxidation over palladium supported on γ-alumina catalysts.Applied Catalysis B: Environmental,1998,18(1-2):105-114
    [7] Massimo Morbidelli,Asterios Gavriilidis,Arvind Varma.Catalyst Design:Optimal Distribution of Catalyst in Pellets, Reactors, and Membranes.United Kingdom:Cambridge University Press,2001
    [8] Truex T. J. Interaction of sulfur with automotive catalysts and the impact on vehicle emission:A review.SAE1999011543,1999
    [9] 蔡皓.三效催化转化器长寿低排放机理及性能优化研究.长沙:湖南大学博士学位论文,2009 Cai Hao.Study on long life and low emission mechanism of three-way catalyst and performance optimization.Changsha: Doctoral Dissertation of Hunan University,2009(in Chinese)
    [10] 龚金科,蔡皓,耿玉鹤,等.改进型汽油发动机三效催化转化器反应模型及实验研究.内燃机学报,2009,5(34):430-434 Gong Jinke,Cai Hao,Geng Yuhe, et al.Improved reaction model and experimental research of gasoline engine three-way catalytic converter.Transactions of Csice,2009,5(34):430-434(in Chinese)
    [11] Waquif M., Bazin P., Saur O. Study of ceria sulfation.Applied Catalysis B: Environmental,1997,11(2):193-205
    [12] Bazin P., Saur O., Lavalley J. C., et al.Influence of platinum on ceria sulfation.Applied Catalysis B: Environmental,1997,13(3-4):265-274
    [13] Praveen K. Cheekatamarla,Alan M. Lane.Catalytic autothermal reforming of diesel fuel for hydrogen generation in fuel cells II. Catalyst poisoning and characterization studies.Journal of Power Sources,2006,154(1):223-231
    [14] Daniel Chatterjee,Olaf Deutschmann,Jurgen Warnatz.Detailed surface reaction mechanism in a three-way catalyst.Faraday Discuss,2001,119(1):371-384
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  • 收稿日期:  2012-05-30
  • 刊出日期:  2013-06-11
蔡皓, 龚金科, 鄂加强, 耿玉鹤, 余明果. 三效催化转化器催化剂硫中毒机理[J]. 环境工程学报, 2013, 7(6): 2278-2284.
引用本文: 蔡皓, 龚金科, 鄂加强, 耿玉鹤, 余明果. 三效催化转化器催化剂硫中毒机理[J]. 环境工程学报, 2013, 7(6): 2278-2284.
shu
Cai Hao, Gong Jinke, E Jiaqiang, Geng Yuhe, Yu Minguo. Sulfur poisoning mechanism of three way catalytic converter[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2278-2284.
Citation: Cai Hao, Gong Jinke, E Jiaqiang, Geng Yuhe, Yu Minguo. Sulfur poisoning mechanism of three way catalytic converter[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2278-2284.
shu

三效催化转化器催化剂硫中毒机理

  • 1. 湖南大学机械与运载工程学院, 长沙 410082
  • 2. 广汽三菱汽车股份有限公司, 长沙 410014
  • 收稿日期:  2012-05-30
基金项目:

湖南省科学技术厅科技计划重点项目(2009CK2001)

湖南大学"青年教师成长资助计划"资助项目

摘要: 在一种详细的表面反应机理中加入了包含贵金属催化剂与助催化剂的硫中毒基元反应,建立了新的三效催化转化器催化反应机理。利用该机理进行了稳态工况数值模拟,得到了各排气污染物起燃温度与转化效率随尾气中SO2浓度的变化情况。采用灰色关联分析了SO2浓度与各排气组分转化效率的关联度,结果表明,SO2浓度对C3H6与NOx转化效率影响最大。对三效催化转化器的催化剂活性设计具有重要的参考价值,并对其工况设计及优化提供了指导。

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