Open AccessIN SITU Device for Real-Time Catalyst Deactivation Measurements
Author(s) -
Research, Fossil Energy
Publication year - 2008
Language(s) - English
Resource type - Reports
DOI - 10.2172/924163
Subject(s) - mercury (programming language) , catalysis , elemental mercury , inlet , environmental science , chemistry , waste management , environmental chemistry , analytical chemistry (journal) , engineering , computer science , mechanical engineering , biochemistry , flue gas , programming language
SCR catalyst management has become an important operations and maintenance activity for coal-fired utility boilers in the United States. To facilitate this activity, a method to determine Catalyst Activity in situ is being developed. This report describes the methodology and presents the results of a two ozone season demonstration conducted at Alabama Power Company's Gorgas Unit 10 during the 2005 and 2006 ozone seasons. The results showed that the in situ measurements are in good agreement with the laboratory measurements and the technique has some advantages over the traditional laboratory method of determining Catalyst Activity and Reactor Potential. SCR Performance is determined by the overall Reactor Potential (the product of the Catalyst Activity and the available surface area per unit of flue gas). The in situ approach provides a direct measurement of Reactor Potential under actual operating conditions, whereas laboratory measurements of Catalyst Activity need to be coupled with estimates of catalyst pluggage and flue gas flowrate in order to assess Reactor Potential. The project also showed that the in situ activity results can easily be integrated into catalyst management software to aid in making informed catalyst decisions