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Pilot-scale investigation of Pt/alumina catalysts deactivation by organosilicon in the total oxidation of hydrocarbons
Växjö University, Faculty of Mathematics/Science/Technology, School of Technology and Design. Bioenergiteknik.ORCID iD: 0000-0002-5835-865X
Växjö University, Faculty of Mathematics/Science/Technology, School of Technology and Design.
Chalmers University of Technology.
Amir-Kabir University of Technology, Iran.
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2007 (English)In: Topics in catalysis, ISSN 1022-5528, E-ISSN 1572-9028, Vol. 45, no 1, p. 121-124Article in journal (Refereed) Published
Abstract [en]

The deactivation of alumina-supported platinum catalyst for VOC oxidation by long-term exposure for hexamethyldisiloxane (HMDS) has been investigated in a pilot scale reactor for up to 1000 h of exposure. Catalyst samples were characterized by ICP-AES, BET and silicon deposition by SEM. Catalyst activity was investigated using oxidation of ethyl acetate showing deactivation of the catalyst samples as exposed to HMDS increasing with exposure time. Silicon was shown to deposit on the catalyst as well as on the blank alumina support. SEM investigation of an individual pellet revealed a radial eggshell silicon distribution. CO chemisorption showed strong decrease of Pt active sites after deactivation, while still maintaining reasonable oxidation levels of ethyl acetate.

Place, publisher, year, edition, pages
2007. Vol. 45, no 1, p. 121-124
Keywords [en]
deactivation, platinum, volatile organic compounds, ethyl acetate, organosilicon
National Category
Energy Engineering
Research subject
Technology (byts ev till Engineering), Bioenergy Technology
Identifiers
URN: urn:nbn:se:vxu:diva-2768DOI: 10.1007/s11244-007-0251-6OAI: oai:DiVA.org:vxu-2768DiVA, id: diva2:202724
Available from: 2007-12-14 Created: 2007-12-14 Last updated: 2017-12-13Bibliographically approved

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Larsson, Ann-Charlotte

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CiteExportLink to record
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