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题名: NO reduction by CH4 in over Pd/sulfated the presence of excess O-2 alumina catalysts
作者: Li, N;  Wang, AQ;  Lin, L;  Wang, XD;  Ren, LL;  Zhang, T
关键词: NO reduction ;  methane ;  sulfated alumina ;  Pd
刊名: APPLIED CATALYSIS B-ENVIRONMENTAL
发表日期: 2004-06-18
DOI: 10.1016/j.apcatb.2003.10.009
卷: 50, 期:1, 页:1-7
收录类别: SCI
文章类型: Article
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: Selective catalytic reduction (SCR) of nitric oxide with methane in the presence of excess oxygen has been studied for the first time on a series of Pd loaded sulfated alumina (SA) catalysts. Pd/gamma-Al2O3 showed only a low activity for the SCR of NO with methane but high activity for combustion by-reaction. After pretreating the gamma-Al2O3 with H2SO4, a remarkably promoting effect on the catalytic activity was achieved. NH3-TPD spectra of different catalysts demonstrated that the sulfation increased the acidity of support which is very important for the reduction of NO with methane over Pd catalysts. The Pd/sulfated alumina catalyst exhibited best catalytic activity when 0.1 wt.% Pd was loaded on sulfated alumina (SA) prepared by impregnating the gamma-Al2O3 with 2.5 M H2SO4. The activity of Pd/SA catalyst can be improved by increasing the surface area of the gamma-Al2O3 Precursor. Moreover, the Pd/SA catalyst as prepared exhibited high catalytic performance in high space velocity and in the presence Of SO2. (C) 2003 Elsevier B.V. All rights reserved.
关键词[WOS]: PALLADIUM-LOADED ZEOLITES ;  SELECTIVE REDUCTION ;  NITROGEN MONOXIDE ;  NITRIC-OXIDE ;  ZIRCONIA CATALYSTS ;  METHANE ;  PD ;  OXYGEN ;  ACIDITY ;  SULFUR
语种: 英语
WOS记录号: WOS:000221383900001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139576
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:
Li, N,Wang, AQ,Lin, L,et al. NO reduction by CH4 in over Pd/sulfated the presence of excess O-2 alumina catalysts[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2004,50(1):1-7.
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