Catalytic Reduction of NO and N2O to N2 in the Presence of O2, C3H6, SO2, and H2O
The reduction of NO and N2O to N2 under the same reaction conditions was studied. When both NO and N2O coexisted in the feed, the two gases were reduced at different temperatures over Rh/- or Ru/Al2O3. NO was reduced over In/Al2O3 and N2O over Ru/- or Rh/Al2O3 at the same temperature range. Bimetall...
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| Veröffentlicht in: | Industrial & engineering chemistry research 2002-05, Vol.41 (9), p.2090-2095 |
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| container_issue | 9 |
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| container_title | Industrial & engineering chemistry research |
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| creator | Christoforou, S. C Efthimiadis, E. A Vasalos, I. A |
| description | The reduction of NO and N2O to N2 under the same reaction conditions was studied. When both NO and N2O coexisted in the feed, the two gases were reduced at different temperatures over Rh/- or Ru/Al2O3. NO was reduced over In/Al2O3 and N2O over Ru/- or Rh/Al2O3 at the same temperature range. Bimetallic catalysts consisting of both In and Ru sites were not efficient for the simultaneous NO and N2O reduction because C3H6 was oxidized over the Ru sites. A two-layered catalytic bed made of In/Al2O3 located close to the feed inlet and Ru/Al2O3 located close to the reactor exit was used to efficiently reduce (more than 80% conversion) both NO and N2O at 450 °C. The performance of the same catalytic system was tested by adding both H2O and SO2 in the feed. These gases caused a moderate inhibition in the activity, thus shifting the conversion vs temperature curves to higher temperatures and lowering the conversion to N2. |
| doi_str_mv | 10.1021/ie010862o |
| format | Article |
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C ; Efthimiadis, E. A ; Vasalos, I. A</creator><creatorcontrib>Christoforou, S. C ; Efthimiadis, E. A ; Vasalos, I. A</creatorcontrib><description>The reduction of NO and N2O to N2 under the same reaction conditions was studied. When both NO and N2O coexisted in the feed, the two gases were reduced at different temperatures over Rh/- or Ru/Al2O3. NO was reduced over In/Al2O3 and N2O over Ru/- or Rh/Al2O3 at the same temperature range. Bimetallic catalysts consisting of both In and Ru sites were not efficient for the simultaneous NO and N2O reduction because C3H6 was oxidized over the Ru sites. A two-layered catalytic bed made of In/Al2O3 located close to the feed inlet and Ru/Al2O3 located close to the reactor exit was used to efficiently reduce (more than 80% conversion) both NO and N2O at 450 °C. The performance of the same catalytic system was tested by adding both H2O and SO2 in the feed. These gases caused a moderate inhibition in the activity, thus shifting the conversion vs temperature curves to higher temperatures and lowering the conversion to N2.</description><identifier>ISSN: 0888-5885</identifier><identifier>EISSN: 1520-5045</identifier><identifier>DOI: 10.1021/ie010862o</identifier><identifier>CODEN: IECRED</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Applied sciences ; Atmospheric pollution ; Catalysis ; Catalytic reactions ; Chemistry ; Combustion and energy production ; Exact sciences and technology ; General and physical chemistry ; Pollution ; Prevention and purification methods ; Theory of reactions, general kinetics. Catalysis. 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The performance of the same catalytic system was tested by adding both H2O and SO2 in the feed. These gases caused a moderate inhibition in the activity, thus shifting the conversion vs temperature curves to higher temperatures and lowering the conversion to N2.</description><subject>Applied sciences</subject><subject>Atmospheric pollution</subject><subject>Catalysis</subject><subject>Catalytic reactions</subject><subject>Chemistry</subject><subject>Combustion and energy production</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Pollution</subject><subject>Prevention and purification methods</subject><subject>Theory of reactions, general kinetics. Catalysis. 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Nomenclature, chemical documentation, computer chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Christoforou, S. C</creatorcontrib><creatorcontrib>Efthimiadis, E. A</creatorcontrib><creatorcontrib>Vasalos, I. A</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><jtitle>Industrial & engineering chemistry research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Christoforou, S. C</au><au>Efthimiadis, E. A</au><au>Vasalos, I. A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Catalytic Reduction of NO and N2O to N2 in the Presence of O2, C3H6, SO2, and H2O</atitle><jtitle>Industrial & engineering chemistry research</jtitle><addtitle>Ind. Eng. Chem. Res</addtitle><date>2002-05-01</date><risdate>2002</risdate><volume>41</volume><issue>9</issue><spage>2090</spage><epage>2095</epage><pages>2090-2095</pages><issn>0888-5885</issn><eissn>1520-5045</eissn><coden>IECRED</coden><abstract>The reduction of NO and N2O to N2 under the same reaction conditions was studied. When both NO and N2O coexisted in the feed, the two gases were reduced at different temperatures over Rh/- or Ru/Al2O3. NO was reduced over In/Al2O3 and N2O over Ru/- or Rh/Al2O3 at the same temperature range. Bimetallic catalysts consisting of both In and Ru sites were not efficient for the simultaneous NO and N2O reduction because C3H6 was oxidized over the Ru sites. A two-layered catalytic bed made of In/Al2O3 located close to the feed inlet and Ru/Al2O3 located close to the reactor exit was used to efficiently reduce (more than 80% conversion) both NO and N2O at 450 °C. The performance of the same catalytic system was tested by adding both H2O and SO2 in the feed. These gases caused a moderate inhibition in the activity, thus shifting the conversion vs temperature curves to higher temperatures and lowering the conversion to N2.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><doi>10.1021/ie010862o</doi><tpages>6</tpages></addata></record> |
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| ispartof | Industrial & engineering chemistry research, 2002-05, Vol.41 (9), p.2090-2095 |
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| source | American Chemical Society Publications |
| subjects | Applied sciences Atmospheric pollution Catalysis Catalytic reactions Chemistry Combustion and energy production Exact sciences and technology General and physical chemistry Pollution Prevention and purification methods Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry |
| title | Catalytic Reduction of NO and N2O to N2 in the Presence of O2, C3H6, SO2, and H2O |
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