Effect of SO on NH oxidation over a Cu-SAPO-34 SCR catalyst
The impact of SO 2 on NH 3 oxidation, an undesired side reaction that can occur during NH 3 -SCR, was studied using Cu-SAPO-34. Based on kinetic analysis, monomeric Cu ++ was active toward NH 3 oxidation. In terms of the SO 2 effect, significant loss in NH 3 oxidation activity was observed at temper...
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| Veröffentlicht in: | Catalysis science & technology 2016-04, Vol.6 (8), p.2679-2685 |
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| container_title | Catalysis science & technology |
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| creator | Jangjou, Yasser Ali, Mustafa Chang, Qingyun Wang, Di Li, Junhui Kumar, Ashok Epling, William S |
| description | The impact of SO
2
on NH
3
oxidation, an undesired side reaction that can occur during NH
3
-SCR, was studied using Cu-SAPO-34. Based on kinetic analysis, monomeric Cu
++
was active toward NH
3
oxidation. In terms of the SO
2
effect, significant loss in NH
3
oxidation activity was observed at temperatures below 350 C. However, at higher temperatures, SO
2
had no significant effect on NH
3
oxidation, which corresponds to the lack of an observed effect on SCR performance. Temperature-programmed-desorption (TPD) data obtained after NH
3
and SO
2
exposures demonstrate that SO
2
inhibited monomeric copper NH
3
oxidation activity through formation of ammonium sulfate, whose formation was catalyzed by the Cu. The monomeric copper regained NH
3
oxidation activity after ammonium sulfate decomposed.
The impact of SO
2
on NH
3
oxidation, an undesired side reaction that can occur during NH
3
-SCR, was studied using Cu-SAPO-34. |
| doi_str_mv | 10.1039/c5cy02212f |
| format | Article |
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2
on NH
3
oxidation, an undesired side reaction that can occur during NH
3
-SCR, was studied using Cu-SAPO-34. Based on kinetic analysis, monomeric Cu
++
was active toward NH
3
oxidation. In terms of the SO
2
effect, significant loss in NH
3
oxidation activity was observed at temperatures below 350 C. However, at higher temperatures, SO
2
had no significant effect on NH
3
oxidation, which corresponds to the lack of an observed effect on SCR performance. Temperature-programmed-desorption (TPD) data obtained after NH
3
and SO
2
exposures demonstrate that SO
2
inhibited monomeric copper NH
3
oxidation activity through formation of ammonium sulfate, whose formation was catalyzed by the Cu. The monomeric copper regained NH
3
oxidation activity after ammonium sulfate decomposed.
The impact of SO
2
on NH
3
oxidation, an undesired side reaction that can occur during NH
3
-SCR, was studied using Cu-SAPO-34.</description><identifier>ISSN: 2044-4753</identifier><identifier>EISSN: 2044-4761</identifier><identifier>DOI: 10.1039/c5cy02212f</identifier><ispartof>Catalysis science & technology, 2016-04, Vol.6 (8), p.2679-2685</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Jangjou, Yasser</creatorcontrib><creatorcontrib>Ali, Mustafa</creatorcontrib><creatorcontrib>Chang, Qingyun</creatorcontrib><creatorcontrib>Wang, Di</creatorcontrib><creatorcontrib>Li, Junhui</creatorcontrib><creatorcontrib>Kumar, Ashok</creatorcontrib><creatorcontrib>Epling, William S</creatorcontrib><title>Effect of SO on NH oxidation over a Cu-SAPO-34 SCR catalyst</title><title>Catalysis science & technology</title><description>The impact of SO
2
on NH
3
oxidation, an undesired side reaction that can occur during NH
3
-SCR, was studied using Cu-SAPO-34. Based on kinetic analysis, monomeric Cu
++
was active toward NH
3
oxidation. In terms of the SO
2
effect, significant loss in NH
3
oxidation activity was observed at temperatures below 350 C. However, at higher temperatures, SO
2
had no significant effect on NH
3
oxidation, which corresponds to the lack of an observed effect on SCR performance. Temperature-programmed-desorption (TPD) data obtained after NH
3
and SO
2
exposures demonstrate that SO
2
inhibited monomeric copper NH
3
oxidation activity through formation of ammonium sulfate, whose formation was catalyzed by the Cu. The monomeric copper regained NH
3
oxidation activity after ammonium sulfate decomposed.
The impact of SO
2
on NH
3
oxidation, an undesired side reaction that can occur during NH
3
-SCR, was studied using Cu-SAPO-34.</description><issn>2044-4753</issn><issn>2044-4761</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNpjYBAyNNAzNDC21E82Ta40MDIyNEpjYuA0MjAx0TUxNzNkgbNNjTkYeIuLswyAwMTS0MDCiJPB2jUtLTW5RCE_TSHYXyE_T8HPQyG_IjMlsSQTyMkvSy1SSFRwLtUNdgzw1zU2UQh2DlJITixJzKksLuFhYE1LzClO5YXS3Ayybq4hzh66RcXJ8QVFmbmJRZXxCEcZE5IHAMgqNuo</recordid><startdate>20160418</startdate><enddate>20160418</enddate><creator>Jangjou, Yasser</creator><creator>Ali, Mustafa</creator><creator>Chang, Qingyun</creator><creator>Wang, Di</creator><creator>Li, Junhui</creator><creator>Kumar, Ashok</creator><creator>Epling, William S</creator><scope/></search><sort><creationdate>20160418</creationdate><title>Effect of SO on NH oxidation over a Cu-SAPO-34 SCR catalyst</title><author>Jangjou, Yasser ; Ali, Mustafa ; Chang, Qingyun ; Wang, Di ; Li, Junhui ; Kumar, Ashok ; Epling, William S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-rsc_primary_c5cy02212f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><creationdate>2016</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jangjou, Yasser</creatorcontrib><creatorcontrib>Ali, Mustafa</creatorcontrib><creatorcontrib>Chang, Qingyun</creatorcontrib><creatorcontrib>Wang, Di</creatorcontrib><creatorcontrib>Li, Junhui</creatorcontrib><creatorcontrib>Kumar, Ashok</creatorcontrib><creatorcontrib>Epling, William S</creatorcontrib><jtitle>Catalysis science & technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jangjou, Yasser</au><au>Ali, Mustafa</au><au>Chang, Qingyun</au><au>Wang, Di</au><au>Li, Junhui</au><au>Kumar, Ashok</au><au>Epling, William S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of SO on NH oxidation over a Cu-SAPO-34 SCR catalyst</atitle><jtitle>Catalysis science & technology</jtitle><date>2016-04-18</date><risdate>2016</risdate><volume>6</volume><issue>8</issue><spage>2679</spage><epage>2685</epage><pages>2679-2685</pages><issn>2044-4753</issn><eissn>2044-4761</eissn><abstract>The impact of SO
2
on NH
3
oxidation, an undesired side reaction that can occur during NH
3
-SCR, was studied using Cu-SAPO-34. Based on kinetic analysis, monomeric Cu
++
was active toward NH
3
oxidation. In terms of the SO
2
effect, significant loss in NH
3
oxidation activity was observed at temperatures below 350 C. However, at higher temperatures, SO
2
had no significant effect on NH
3
oxidation, which corresponds to the lack of an observed effect on SCR performance. Temperature-programmed-desorption (TPD) data obtained after NH
3
and SO
2
exposures demonstrate that SO
2
inhibited monomeric copper NH
3
oxidation activity through formation of ammonium sulfate, whose formation was catalyzed by the Cu. The monomeric copper regained NH
3
oxidation activity after ammonium sulfate decomposed.
The impact of SO
2
on NH
3
oxidation, an undesired side reaction that can occur during NH
3
-SCR, was studied using Cu-SAPO-34.</abstract><doi>10.1039/c5cy02212f</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2044-4753 |
| ispartof | Catalysis science & technology, 2016-04, Vol.6 (8), p.2679-2685 |
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| recordid | cdi_rsc_primary_c5cy02212f |
| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| title | Effect of SO on NH oxidation over a Cu-SAPO-34 SCR catalyst |
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