高级搜索

Cu-ZSM-5/堇青石催化剂上同时消除烃和NO的研究

,  ,  ,  ,  , 

downloadPDF

上一篇

下一篇

刘致强, 唐磊, 田东, 鲍卫仁, 王建成, 常丽萍. Cu-ZSM-5/堇青石催化剂上同时消除烃和NO的研究[J]. 环境化学, 2011, 30(9): 1558-1563.
引用本文: 刘致强, 唐磊, 田东, 鲍卫仁, 王建成, 常丽萍. Cu-ZSM-5/堇青石催化剂上同时消除烃和NO的研究[J]. 环境化学, 2011, 30(9): 1558-1563.
shu
LIU Zhiqiang, TANG Lei, TIAN Dong, BAO Weiren, WANG Jiancheng, CHANG Liping. REMOVAL OF HYDROCARBON AND NO BY Cu-ZSM-5 CORDIERITE CATALYST[J]. Environmental Chemistry, 2011, 30(9): 1558-1563.
Citation: LIU Zhiqiang, TANG Lei, TIAN Dong, BAO Weiren, WANG Jiancheng, CHANG Liping. REMOVAL OF HYDROCARBON AND NO BY Cu-ZSM-5 CORDIERITE CATALYST[J]. Environmental Chemistry, 2011, 30(9): 1558-1563.
shu

Cu-ZSM-5/堇青石催化剂上同时消除烃和NO的研究

  • 1.

    太原理工大学煤科学与技术教育部和山西省重点实验室, 太原, 030024

  • 基金项目:

    国家自然科学基金(20906067)

    山西省科技基础条件平台建设项目(2010091015)

    山西省高等学校优秀青年学术带头人支持计划资助.

REMOVAL OF HYDROCARBON AND NO BY Cu-ZSM-5 CORDIERITE CATALYST

  • 1.

    Key Laboratory of Coal Science and Technology, Taiyuan University of Technology, Ministry of Education and Shanxi Province, Taiyuan, 030024, China

  • Fund Project:

  • 摘要: 利用水热合成技术在堇青石蜂窝陶瓷载体上原位合成分子筛,分别通过离子交换法和浸渍法制备了整体式Cu-ZSM-5/堇青石催化剂,以丙烷为还原剂,在模拟柴油机尾气系统中评价了两类催化剂消除烃和NO的性能.结果表明,晶化时间48 h时,原位合成的ZSM-5/堇青石催化剂载体表面有形状规则的ZSM-5晶核生成,且具有较好的牢固度,引入活性组分铜制得的催化剂具有明显的的脱除丙烷和NO的活性.在以丙烷为还原剂的选择性催化还原过程中,整体式Cu-ZSM-5/堇青石催化剂对C3H8表现出了较高的催化转化能力.低于800 K的温度范围内,C3H8主要作为还原剂参与反应,最高转化率可达100%;高于800 K时,C3H8被氧化的反应逐渐增强;在575-895 K的温度区间,NO的最高转化率为50%左右;水蒸气的加入,对C3H8的转化几乎没有影响,但对NO的转化有明显的抑制作用,其最高转化率降低到不足40%.与浸渍法制备的催化剂相比,离子交换法制备的催化剂对NO的催化转化能力增强,但对C3H8转化的影响不大.
    Abstract: Using hydro-thermal synthesis technique, ZSM-5 zeolite was firmly attached on the surface of honeycomb made of cordierite ceramic, called ZSM-5/cordierite. The Cu-ZSM-5/cordierite monolithic catalysts were then prepared by ion-exchange method and impregnation method, respectively. XRD showed ZSM-5 crystalline was formed on the surface of cordierite when the ZSM-5/cordierite was made after 48 h crystallization. The catalysts were evaluated in the simulated diesel-engine exhausting gas for both hydrocarbons and nitrogen monoxide (NO) removal. In the selective catalytic reduction process with propane (C3H8) as a reducing agent, the conversion of propane over the Cu-ZSM-5/cordierite catalysts was able to reach 100% in the temperature range below 800 K. Over 800 K, the oxidation of C3H8 was enhanced. In the temperature range of 575 K to 895 K, the maximum NO conversion was 50%. The addition of water vapour did not affect the conversion of C3H8, but mitigated the conversion of NO. In presence of vapour, the maximum NO conversion was up to 40 % in the same temperature range. Comparison between the catalysts made by ion-exchange and impregnation showed the former facilitated higher NO conversion; but both had the same C3H8 conversion.
  • 加载中
  • [1] 曲虹霞, 钟秦. MoO3/TiO2 催化剂对NH3 选择性催化还原NOx的研究[J]. 环境化学,2004,23(4): 372-375
    [2] 李秋荣, 李俊华, 贺君, 等. NiO/γ-Al2O3复合氧化物低温吸附NOx的性能[J]. 环境化学,2010,29(4): 721-725
    [3] 王桂茹. 催化剂与催化作用[M]. 大连: 大连理工大学出版社, 2008: 25-51
    [4] 秦文新, 程熙, 叶霭云,等. 汽车尾气净化与噪声控制[M]. 北京: 人民交通出版社, 2002: 79-102
    [5] Mieic H, Lee W, Chen C, et al. Effect of fuel aromatic content on PAH emission from a heavy-duty diesel engine[J]. Chemosphere, 2000, 41(11): 1783-1790
    [6] Takaaki K. Development of hydrocarbon adsorbents, oxygen storage materials for three-way catalysts and NOx storage-reduction catalyst[J]. Catal Today, 2004, 96: 171-177
    [7] Szailer T, Kwak J H, Kim D H, et al. Reduction of stored NOx on Pt/Al2O3 and Pt/BaO/Al2O3 catalysts with H2 and CO[J]. J Catal, 2006, 239: 51-64
    [8] 陈树伟, 闫晓亮, 陈佳琪, 等. 富氧条件下Mn/ZSM-5选择催化CH4还原NO[J]. 催化学报, 2010, 31:1107-1114
    [9] Costas C , Efstathiou E M. Low-temperature H2-SCR of NO on a novel Pt/MgO-CeO2 catalyst[J]. Appl Catal B, 2007, 72: 240-252
    [10] Ishihara T, Kagawa M, Hadama F Y, et al. Copper ion-exchanged SAPO-34 as a thermostable catalyst for selective reduction of NO with C3H6[J]. J Catal, 1997, 169: 93-102
    [11] Shan Z, Kooten V, Calis H , et al. Optimization of the preparation of binderless ZSM-5 coatings on stainless steel monoliths by in situ hydrothermal synthesis[J]. Microporous and Mesoporous Materials, 2000, 34: 81-91
    [12] Aiello R, Crea F, Spanti A , et al. In situ crystallization of MFI-type zeolites over cordierite support[J]. Surface Science and Catalysis, 1999, 125: 29-36
    [13] Lovallo M, Tsapatsis M, Tallo C, et al. Preparation of an asymmetric zeolite film[J]. Chemistry of Materials, 1996, 8(8): 1579-1583
    [14] Nishivama K, Uevama T, Masahiko L, et al. Synthesis of defect-free zeolite-alumina composite membranes by vapour-phase transport method[J]. Microporous Materials, 1996, 7(6): 299-308
    [15] 王爱琴,梁东白,徐长海,等. 堇青石蜂窝陶瓷载体上ZSM-5及Anacime沸石的原位合成[J]. 催化学报, 2000, 21(1): 19-21
    [16] Suresh T. Long-term durability of ceramic honeycombs for automotive emissions control[J]. Society of Automotive Engineers Paper, 1985, 8: 130-132
    [17] Boudrear L. Deposition of oriented zeolite a films: in situ and secondary growth[J]. Journal of Membrane Science, 1999, 15(2): 41-59
    [18] Mintova S, Bein T, Lina L , et al. Nanosized AlPO4-5 molecular sieves and ultrathin films prepared by microwave synthesis[J]. Chemistry of Materials, 1998, 10: 4030-4036
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  937
  • HTML全文浏览数:  891
  • PDF下载数:  339
  • 施引文献:  0
出版历程
  • 收稿日期:  2010-11-18
刘致强, 唐磊, 田东, 鲍卫仁, 王建成, 常丽萍. Cu-ZSM-5/堇青石催化剂上同时消除烃和NO的研究[J]. 环境化学, 2011, 30(9): 1558-1563.
引用本文: 刘致强, 唐磊, 田东, 鲍卫仁, 王建成, 常丽萍. Cu-ZSM-5/堇青石催化剂上同时消除烃和NO的研究[J]. 环境化学, 2011, 30(9): 1558-1563.
shu
LIU Zhiqiang, TANG Lei, TIAN Dong, BAO Weiren, WANG Jiancheng, CHANG Liping. REMOVAL OF HYDROCARBON AND NO BY Cu-ZSM-5 CORDIERITE CATALYST[J]. Environmental Chemistry, 2011, 30(9): 1558-1563.
Citation: LIU Zhiqiang, TANG Lei, TIAN Dong, BAO Weiren, WANG Jiancheng, CHANG Liping. REMOVAL OF HYDROCARBON AND NO BY Cu-ZSM-5 CORDIERITE CATALYST[J]. Environmental Chemistry, 2011, 30(9): 1558-1563.
shu

Cu-ZSM-5/堇青石催化剂上同时消除烃和NO的研究

  • 1. 太原理工大学煤科学与技术教育部和山西省重点实验室, 太原, 030024
  • 收稿日期:  2010-11-18
基金项目:

国家自然科学基金(20906067)

山西省科技基础条件平台建设项目(2010091015)

山西省高等学校优秀青年学术带头人支持计划资助.

摘要: 利用水热合成技术在堇青石蜂窝陶瓷载体上原位合成分子筛,分别通过离子交换法和浸渍法制备了整体式Cu-ZSM-5/堇青石催化剂,以丙烷为还原剂,在模拟柴油机尾气系统中评价了两类催化剂消除烃和NO的性能.结果表明,晶化时间48 h时,原位合成的ZSM-5/堇青石催化剂载体表面有形状规则的ZSM-5晶核生成,且具有较好的牢固度,引入活性组分铜制得的催化剂具有明显的的脱除丙烷和NO的活性.在以丙烷为还原剂的选择性催化还原过程中,整体式Cu-ZSM-5/堇青石催化剂对C3H8表现出了较高的催化转化能力.低于800 K的温度范围内,C3H8主要作为还原剂参与反应,最高转化率可达100%;高于800 K时,C3H8被氧化的反应逐渐增强;在575-895 K的温度区间,NO的最高转化率为50%左右;水蒸气的加入,对C3H8的转化几乎没有影响,但对NO的转化有明显的抑制作用,其最高转化率降低到不足40%.与浸渍法制备的催化剂相比,离子交换法制备的催化剂对NO的催化转化能力增强,但对C3H8转化的影响不大.

English Abstract

    全文HTML

参考文献 (18)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心