Sulfated Zirconia as Alkali-Resistant Support for Catalytic NOx Removal

Johannes Due-Hansen (Author), Arkadii Kustov (Author), Søren Birk Rasmussen (Author), Claus H. Christensen (Author), Rasmus Fehrmann (Author)

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The use of bio-fuels as alternatives to traditional fossil fuels has attracted much attention recent years since bio-fuels belong to a family of renewable types of energy sources and do not contribute to the green-house effect. Selective catalytic reduction (SCR) of NOx with ammonia as reductant is the most efficient method to eliminate NOx from flue gases in stationary sources. The traditional SCR catalyst suffers significant deactivation with time due to the presence of larger amounts of potassium in bio-fuels. A possible solution of this problem is use of highly acidic supports which would interact with potassium stronger than active metal species. Among potential carriers, sulfated zirconia is of high interest because its acidic and textural properties can be modified by varying preparation conditions.
Original languageEnglish
Publication date2007
Publication statusPublished - 2007
Event20th North American Catalysis Society Meeting (NACS) - Houston, TX, United States
Duration: 17 Jun 200722 Jun 2007
Conference number: 20


Conference20th North American Catalysis Society Meeting (NACS)
Country/TerritoryUnited States
CityHouston, TX

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