Evaluation of PCDD/F oxidation catalysts: Confronting studies on model molecules with tests on PCDD/F-containing gas stream

NCU Institutional Repository > 工學院 > 環境工程研究所 > 期刊論文 > Item 987654321/50151

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/50151

题名:	Evaluation of PCDD/F oxidation catalysts: Confronting studies on model molecules with tests on PCDD/F-containing gas stream
作者:	Debecker,DP;Delaigle,R;Hung,PC;Buekens,A;Gaigneaux,EM;Chang,MB
贡献者:	環境工程研究所
关键词:	OXIDE-BASED FORMULATIONS;MUNICIPAL SOLID-WASTE;CHLORINATED VOCS;FLUE-GAS;CHLOROBENZENE;ABATEMENT;DIOXINS;PERFORMANCES;DESTRUCTION;PHASES
日期:	2011
上传时间:	2012-03-27 17:04:49 (UTC+8)
出版者:	國立中央大學
摘要:	Titania supported vanadium oxide is a renowned catalyst for the abatement of polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs) from gas effluents. To develop more active formulations, researchers mainly rely on lab-scale experiments on "PCDD/Fs-mimicking substances", like (chloro)benzene. Using such model compounds is convenient whereas handling PCDD/Fs in the laboratory is potentially hazardous and complicated. Recent studies, however, challenged some foremost conclusions of model compound based studies, starting from the observation that different model compounds gave contrasted results. Thus the present work aims at confronting some of these dubious conclusions with direct experimental tests on PCDD/Fs. One reference V(2)O(5)/TiO(2) catalyst and three modified formulations (V(2)O(5)/TiO(2)-SO(4), V(2)O(5)-MoO(3)/TiO(2), and V(2)O(5)-WO(3)/TiO(2)) have been evaluated. A dedicated apparatus was used which allows safe and reliable tests on a mixture of PCDD/Fs congeners. Some of the previously proposed catalyst improvement strategies actually prove to be disadvantageous in the removal of PCDD/Fs. In particular, MoO(3)- and WO(3)-modified catalysts were significantly less active than the reference catalyst. These observations show that conclusions from model compound based studies must be drawn with care and should ideally be confronted with tests on the actual target pollutants. (C) 2010 Elsevier Ltd. All rights reserved.
關聯:	CHEMOSPHERE
显示于类别:	[環境工程研究所 ] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	693	检视/开启

在NCUIR中所有的数据项都受到原著作权保护.

社群 sharing

数据加载中.....