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Poisoning of SCR Catalysts used in Municipal Waste Incineration Applications
Linnaeus University, Faculty of Technology, Department of Built Environment and Energy Technology.ORCID iD: 0000-0002-4162-3680
Lund University .
2017 (English)In: Topics in catalysis, ISSN 1022-5528, E-ISSN 1572-9028, Vol. 60, no 17-18, 1306-1316 p.Article in journal (Refereed) Published
Abstract [en]

A commercial vanadia, tungsta on titania SCRcatalyst was poisoned in a side stream in a waste incinerationplant. The effect of especially alkali metal poisoningwas observed resulting in a decreased activity at long timesof exposure. The deactivation after 2311 h was 36% whilethe decrease in surface area was only 7.6%. Thus the majorcause for deactivation was a chemical blocking of acidicsites by alkali metals. The activation–deactivation modelshowed excellent agreement with experimental data. Themodel suggests that the original adsorption sites, fromthe preparation of the catalyst, are rapidly deactivated butare replaced by a new population of adsorption sites dueto activation of the catalyst surface by sulphur compounds(SO2, SO3)in the flue gas.

Place, publisher, year, edition, pages
2017. Vol. 60, no 17-18, 1306-1316 p.
Keyword [en]
Poisoning, Waste incineration, SCR catalyst, Modelling of activation and deactivation
National Category
Chemical Process Engineering Energy Systems Inorganic Chemistry Bioenergy Renewable Bioenergy Research
Research subject
Technology (byts ev till Engineering), Bioenergy Technology
Identifiers
URN: urn:nbn:se:lnu:diva-66849DOI: 10.1007/s11244-017-0816-yOAI: oai:DiVA.org:lnu-66849DiVA: diva2:1120782
Conference
17th Nordic Symposium on Catalysis, 2016, Lund Sweden
Available from: 2017-07-07 Created: 2017-07-07 Last updated: 2017-11-06Bibliographically approved

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Brandin, Jan
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CiteExportLink to record
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Citation style
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