Catalytic diesel particulate filters with highly dispersed ceria Effect of the soot-catalyst contact on the regeneration performance.pdfVIP

下载本文档

4
0
约3.84万字
约 9页
2017-03-16 发布于天津
举报
版权申诉

Catalytic diesel particulate filters with highly dispersed ceria Effect of the soot-catalyst contact on the regeneration performance.pdf

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

Catalytic diesel particulate filters with highly dispersed ceria Effect of the soot-catalyst contact on the regeneration performance.pdf

Applied Catalysis B: Environmental 197 (2016) 116–124 Contents lists available at ScienceDirect Applied Catalysis B: Environmental journal homepage: /locate/apcatb Catalytic diesel particulate ?lters with highly dispersed ceria: Effect of the soot-catalyst contact on the regeneration performance Valeria Di Sarli a,?, Gianluca Landi a, Luciana Lisi a, Anna Saliva b, Almerinda Di Benedetto b a Istituto di Ricerche sulla Combustione, Consiglio Nazionale delle Ricerche (CNR), Piazzale V. Tecchio 80, 80125 Napoli, Italy b Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II, Piazzale V. Tecchio 80, 80125 Napoli, Italy article info Article history: Received 14 October 2015 Received in revised form 24 January 2016 Accepted 31 January 2016 Available online 3 February 2016 Keywords: Catalytic diesel particulate ?lters Soot Catalyst dispersion Soot-catalyst contact Ceria abstract In this work, the effect of the soot-catalyst contact on the regeneration performance of a diesel particulate ?lter (DPF) wash-coated with nano-metric ceria particles was investigated. The catalyst load was suitably chosen to avoid major changes in pore size distribution of the original ?lter. Different amounts of soot were loaded into the ?lter, thus varying the catalyst/soot ratio. Filter samples were characterized by N2 physisorption at 77 K, Hg intrusion porosimetry and SEM/EDX analysis. Regeneration tests were performed in a lab-scale plant by temperature programmed combustion of soot. At the lowest soot load explored (corresponding to catalyst/soot ratio ～100 w/w), the soot particles deeply penetrate into the macro-pores of the ?lter walls coming in close touch with highly dispersed ceria. At the highest soot load explored (catalyst/soot ratio ～20 w/w), in addition to the soot particles trapped inside the macro-pores, a thick soot cake layer accumulates on top of the catalytic walls of the ?lter. The former condition resu