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题名: Promotional effect of colloidal alumina on the activity of the In/HZSM-5 catalyst for the selective reduction of NO with methane
作者: Ren, LL;  Zhang, T;  Tang, JW;  Zhao, JF;  Li, N;  Lin, LW
关键词: DeNO(x) ;  SCR of NOx ;  methane ;  In/HZSM-5 ;  Al2O3 ;  Co-operative effect
刊名: APPLIED CATALYSIS B-ENVIRONMENTAL
发表日期: 2003-03-10
卷: 41, 期:1-2, 页:129-136
收录类别: ISTP ;  SCI
文章类型: Article
部门归属: 1501
项目归属: 1501
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Engineering, Environmental ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: Colloidal alumina was used to improve the activity of an In/HZSM-5 catalyst for the selective reduction of NO with CH4 in the excess of oxygen. Compared with In/HZSM-5, the In/HZSM-5/Al2O3 catalyst showed higher activity in a wide range of reaction temperatures. It is visualized that a synergetic effect between In/HZSM-5 and Al2O3 enhances the conversion of NOx. The addition of Al2O3 improved the conversion of NO to NO2 and facilitated the activation of methane. An In/HZSM-5/Al2O3 pre-treated with steam for 15 h at 700 degreesC still showed a high activity for the removal of NOx with methane, while an In/HZSM-5 similarly pre-treated with steam showed a lower activity than the fresh sample. The activity of the In/HZSM-5/Al2O3 catalyst could be restored completely after water vapor was removed from the feed gas. Furthermore, it was found that the In/HZSM-5/Al2O3 remained fairly active under high GHSV and O-2 concentration conditions. It was also interesting to find that an increase in NO content could enhance the conversion of methane, and this illustrates that the existence of NO is beneficial for the activation of methane. (C) 2002 Elsevier Science B.V. All rights reserved.
关键词[WOS]: NITROGEN MONOXIDE ;  ZEOLITE CATALYSTS ;  EXCESS OXYGEN ;  NITRIC-OXIDE ;  GALLIUM ;  INDIUM ;  ATMOSPHERE ;  PLATINUM ;  SITES ;  CH4
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000181679800012
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/82483
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Ren, LL,Zhang, T,Tang, JW,et al. Promotional effect of colloidal alumina on the activity of the In/HZSM-5 catalyst for the selective reduction of NO with methane[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2003,41(1-2):129-136.
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