Effect of modifiers on the reactivity of Cr2O3/Al2O3 and Cr2O3/TiO2 catalysts for the oxidative dehydrogenation of propane
Chromium oxide supported on alumina and titania supports was modified with oxides of sodium, vanadium and molybdenum. The modified and unmodified chromium oxide catalysts were characterized by several techniques. The presence of surface chromium oxide and surface molybdenum and vanadium oxide specie...
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| Veröffentlicht in: | Catalysis letters 2003-03, Vol.86 (4), p.179-189 |
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| creator | CHERIAN, Maymol GUPTA, Rohit MUSTI SOMESWARA RAO DEO, Goutam |
| description | Chromium oxide supported on alumina and titania supports was modified with oxides of sodium, vanadium and molybdenum. The modified and unmodified chromium oxide catalysts were characterized by several techniques. The presence of surface chromium oxide and surface molybdenum and vanadium oxide species was detected in the unmodified and molybdenum and vanadium oxide modified supported chromium oxide catalysts. The reducibility (Tmax and H/Cr ratio) of the surface chromium species was not affected for the vanadium and molybdenum oxide modified catalysts; however, the reducibility changed noticeably for sodium modified supported chromium oxide catalysts. Studies of the reactivity of the ODH of propane revealed the effect of modifiers on the reactivity properties of the surface chromium oxide species. The activity and propene selectivity decreased for sodium modified supported chromium oxide catalysts. However, the activity increased for vanadium oxide modified catalysts and was similar for molybdenum oxide modified catalysts irrespective of the support. The propene selectivity was higher for molybdenum oxide modified chromium oxide catalysts. However, the propene selectivity for vanadium oxide modified catalysts depends on the support since it appears that the inherent selectivity of the surface vanadium oxide species is reflected. |
| doi_str_mv | 10.1023/A:1022655716275 |
| format | Article |
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The modified and unmodified chromium oxide catalysts were characterized by several techniques. The presence of surface chromium oxide and surface molybdenum and vanadium oxide species was detected in the unmodified and molybdenum and vanadium oxide modified supported chromium oxide catalysts. The reducibility (Tmax and H/Cr ratio) of the surface chromium species was not affected for the vanadium and molybdenum oxide modified catalysts; however, the reducibility changed noticeably for sodium modified supported chromium oxide catalysts. Studies of the reactivity of the ODH of propane revealed the effect of modifiers on the reactivity properties of the surface chromium oxide species. The activity and propene selectivity decreased for sodium modified supported chromium oxide catalysts. However, the activity increased for vanadium oxide modified catalysts and was similar for molybdenum oxide modified catalysts irrespective of the support. The propene selectivity was higher for molybdenum oxide modified chromium oxide catalysts. However, the propene selectivity for vanadium oxide modified catalysts depends on the support since it appears that the inherent selectivity of the surface vanadium oxide species is reflected.</description><identifier>ISSN: 1011-372X</identifier><identifier>EISSN: 1572-879X</identifier><identifier>DOI: 10.1023/A:1022655716275</identifier><language>eng</language><publisher>Dordrecht: Springer</publisher><subject>Aluminum oxide ; Catalysis ; Catalysts ; Catalysts: preparations and properties ; Chemical industry ; Chemistry ; Chromium ; Chromium oxides ; Dehydrogenation ; Exact sciences and technology ; General and physical chemistry ; Molybdenum ; Molybdenum oxides ; Propane ; Reactivity ; Selectivity ; Sodium ; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry ; Titanium dioxide ; Vanadium oxides</subject><ispartof>Catalysis letters, 2003-03, Vol.86 (4), p.179-189</ispartof><rights>2003 INIST-CNRS</rights><rights>Catalysis Letters is a copyright of Springer, (2003). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c189t-6c8ca244011031b47cbc307c69937cd7ecad307dc018357acff2bc6170c15b13</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27922,27923</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=14660099$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>CHERIAN, Maymol</creatorcontrib><creatorcontrib>GUPTA, Rohit</creatorcontrib><creatorcontrib>MUSTI SOMESWARA RAO</creatorcontrib><creatorcontrib>DEO, Goutam</creatorcontrib><title>Effect of modifiers on the reactivity of Cr2O3/Al2O3 and Cr2O3/TiO2 catalysts for the oxidative dehydrogenation of propane</title><title>Catalysis letters</title><description>Chromium oxide supported on alumina and titania supports was modified with oxides of sodium, vanadium and molybdenum. The modified and unmodified chromium oxide catalysts were characterized by several techniques. The presence of surface chromium oxide and surface molybdenum and vanadium oxide species was detected in the unmodified and molybdenum and vanadium oxide modified supported chromium oxide catalysts. The reducibility (Tmax and H/Cr ratio) of the surface chromium species was not affected for the vanadium and molybdenum oxide modified catalysts; however, the reducibility changed noticeably for sodium modified supported chromium oxide catalysts. Studies of the reactivity of the ODH of propane revealed the effect of modifiers on the reactivity properties of the surface chromium oxide species. The activity and propene selectivity decreased for sodium modified supported chromium oxide catalysts. However, the activity increased for vanadium oxide modified catalysts and was similar for molybdenum oxide modified catalysts irrespective of the support. The propene selectivity was higher for molybdenum oxide modified chromium oxide catalysts. However, the propene selectivity for vanadium oxide modified catalysts depends on the support since it appears that the inherent selectivity of the surface vanadium oxide species is reflected.</description><subject>Aluminum oxide</subject><subject>Catalysis</subject><subject>Catalysts</subject><subject>Catalysts: preparations and properties</subject><subject>Chemical industry</subject><subject>Chemistry</subject><subject>Chromium</subject><subject>Chromium oxides</subject><subject>Dehydrogenation</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Molybdenum</subject><subject>Molybdenum oxides</subject><subject>Propane</subject><subject>Reactivity</subject><subject>Selectivity</subject><subject>Sodium</subject><subject>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><subject>Titanium dioxide</subject><subject>Vanadium oxides</subject><issn>1011-372X</issn><issn>1572-879X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNotUDtPwzAQthBIlMLMagkxBvyI7ZitqspDqtSlQ7fIOdvUVZoUO0WEX4-BLnf36b6H7hC6peSBEsYfZ0-5MSmEopIpcYYmVChWVEpvzvNMKC24YptLdJXSjhCiFdUT9L3w3sGAe4_3vQ0-uJhw3-Fh63B0BobwGYbxdz2PbJVT2lyx6ewJr8OKYTCDacc0JOz7-Cftv4I1WeuwddvRxv7ddRln4-x0iP3BdO4aXXjTJndz6lO0fl6s56_FcvXyNp8tC6CVHgoJFRhWlvkAwmlTKmiAEwVSa67AKgfGZmyB0IoLZcB71oCkigAVDeVTdPdvm2M_ji4N9a4_xi4n1oyJSmuhpMis-xPLJDCtj6aDkOpDDHsTx5qWUuaXaf4DC9xrLw</recordid><startdate>20030301</startdate><enddate>20030301</enddate><creator>CHERIAN, Maymol</creator><creator>GUPTA, Rohit</creator><creator>MUSTI SOMESWARA RAO</creator><creator>DEO, Goutam</creator><general>Springer</general><general>Springer Nature B.V</general><scope>IQODW</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20030301</creationdate><title>Effect of modifiers on the reactivity of Cr2O3/Al2O3 and Cr2O3/TiO2 catalysts for the oxidative dehydrogenation of propane</title><author>CHERIAN, Maymol ; GUPTA, Rohit ; MUSTI SOMESWARA RAO ; DEO, Goutam</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c189t-6c8ca244011031b47cbc307c69937cd7ecad307dc018357acff2bc6170c15b13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Aluminum oxide</topic><topic>Catalysis</topic><topic>Catalysts</topic><topic>Catalysts: preparations and properties</topic><topic>Chemical industry</topic><topic>Chemistry</topic><topic>Chromium</topic><topic>Chromium oxides</topic><topic>Dehydrogenation</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Molybdenum</topic><topic>Molybdenum oxides</topic><topic>Propane</topic><topic>Reactivity</topic><topic>Selectivity</topic><topic>Sodium</topic><topic>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</topic><topic>Titanium dioxide</topic><topic>Vanadium oxides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>CHERIAN, Maymol</creatorcontrib><creatorcontrib>GUPTA, Rohit</creatorcontrib><creatorcontrib>MUSTI SOMESWARA RAO</creatorcontrib><creatorcontrib>DEO, Goutam</creatorcontrib><collection>Pascal-Francis</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Catalysis letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>CHERIAN, Maymol</au><au>GUPTA, Rohit</au><au>MUSTI SOMESWARA RAO</au><au>DEO, Goutam</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of modifiers on the reactivity of Cr2O3/Al2O3 and Cr2O3/TiO2 catalysts for the oxidative dehydrogenation of propane</atitle><jtitle>Catalysis letters</jtitle><date>2003-03-01</date><risdate>2003</risdate><volume>86</volume><issue>4</issue><spage>179</spage><epage>189</epage><pages>179-189</pages><issn>1011-372X</issn><eissn>1572-879X</eissn><abstract>Chromium oxide supported on alumina and titania supports was modified with oxides of sodium, vanadium and molybdenum. The modified and unmodified chromium oxide catalysts were characterized by several techniques. The presence of surface chromium oxide and surface molybdenum and vanadium oxide species was detected in the unmodified and molybdenum and vanadium oxide modified supported chromium oxide catalysts. The reducibility (Tmax and H/Cr ratio) of the surface chromium species was not affected for the vanadium and molybdenum oxide modified catalysts; however, the reducibility changed noticeably for sodium modified supported chromium oxide catalysts. Studies of the reactivity of the ODH of propane revealed the effect of modifiers on the reactivity properties of the surface chromium oxide species. The activity and propene selectivity decreased for sodium modified supported chromium oxide catalysts. However, the activity increased for vanadium oxide modified catalysts and was similar for molybdenum oxide modified catalysts irrespective of the support. The propene selectivity was higher for molybdenum oxide modified chromium oxide catalysts. However, the propene selectivity for vanadium oxide modified catalysts depends on the support since it appears that the inherent selectivity of the surface vanadium oxide species is reflected.</abstract><cop>Dordrecht</cop><pub>Springer</pub><doi>10.1023/A:1022655716275</doi><tpages>11</tpages></addata></record> |
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| subjects | Aluminum oxide Catalysis Catalysts Catalysts: preparations and properties Chemical industry Chemistry Chromium Chromium oxides Dehydrogenation Exact sciences and technology General and physical chemistry Molybdenum Molybdenum oxides Propane Reactivity Selectivity Sodium Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Titanium dioxide Vanadium oxides |
| title | Effect of modifiers on the reactivity of Cr2O3/Al2O3 and Cr2O3/TiO2 catalysts for the oxidative dehydrogenation of propane |
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