Cyclic catalytic upgrading of chemical species using metal oxide materials

Cyclic catalytic upgrading of chemical species using metal oxide materials

Processes are disclosure which comprise alternately contacting an oxygen-carrying catalyst with a reducing substance, or a lower partial pressure of an oxidizing gas, and then with the oxidizing gas or a higher partial pressure of the oxidizing gas, whereby the catalyst is alternately reduced and th...

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Hauptverfasser: White, James H., Schutte, Erick J., Rolfe, Sara L.
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Schutte, Erick J.
Rolfe, Sara L.
description Processes are disclosure which comprise alternately contacting an oxygen-carrying catalyst with a reducing substance, or a lower partial pressure of an oxidizing gas, and then with the oxidizing gas or a higher partial pressure of the oxidizing gas, whereby the catalyst is alternately reduced and then regenerated to an oxygenated state. In certain embodiments, the oxygen-carrying catalyst comprises at least one metal oxide-containing material containing a composition having one of the following formulas: (a) Ce.sub.xB.sub.yB'.sub.zB''O.sub..delta., wherein B=Ba, Sr, Ca, or Zr; B'=Mn, Co, or Fe; B''=Cu; 0.01
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In certain embodiments, the oxygen-carrying catalyst comprises at least one metal oxide-containing material containing a composition having one of the following formulas: (a) Ce.sub.xB.sub.yB'.sub.zB''O.sub..delta., wherein B=Ba, Sr, Ca, or Zr; B'=Mn, Co, or Fe; B''=Cu; 0.01<x<0.99; 0<y<0.6; 0<z<0.5; and 1<.delta.<2.2; (b) Sr.sub.vLa.sub.wB.sub.xB'.sub.yB''.sub.zO.sub..delta., wherein B=Co or Fe; B'=Al or Ga; B''=Cu; 0.01<v<1.4; 0.1<w<1.6; 0.1<x<1.9; 0.1<y<0.9; 0<z<2.2; and 3<.delta.<5.5).]]></description><language>eng</language><publisher>Glenn Research Center</publisher><subject>Chemistry And Materials (General)</subject><creationdate>2010</creationdate><rights>Copyright Determination: GOV_PUBLIC_USE_PERMITTED</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>776,796,4476</link.rule.ids><linktorsrc>$$Uhttps://ntrs.nasa.gov/citations/20110000780$$EView_record_in_NASA$$FView_record_in_$$GNASA$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>White, James H.</creatorcontrib><creatorcontrib>Schutte, Erick J.</creatorcontrib><creatorcontrib>Rolfe, Sara L.</creatorcontrib><title>Cyclic catalytic upgrading of chemical species using metal oxide materials</title><description><![CDATA[Processes are disclosure which comprise alternately contacting an oxygen-carrying catalyst with a reducing substance, or a lower partial pressure of an oxidizing gas, and then with the oxidizing gas or a higher partial pressure of the oxidizing gas, whereby the catalyst is alternately reduced and then regenerated to an oxygenated state. In certain embodiments, the oxygen-carrying catalyst comprises at least one metal oxide-containing material containing a composition having one of the following formulas: (a) Ce.sub.xB.sub.yB'.sub.zB''O.sub..delta., wherein B=Ba, Sr, Ca, or Zr; B'=Mn, Co, or Fe; B''=Cu; 0.01<x<0.99; 0<y<0.6; 0<z<0.5; and 1<.delta.<2.2; (b) Sr.sub.vLa.sub.wB.sub.xB'.sub.yB''.sub.zO.sub..delta., wherein B=Co or Fe; B'=Al or Ga; B''=Cu; 0.01<v<1.4; 0.1<w<1.6; 0.1<x<1.9; 0.1<y<0.9; 0<z<2.2; and 3<.delta.<5.5).]]></description><subject>Chemistry And Materials (General)</subject><fulltext>true</fulltext><rsrctype>report</rsrctype><creationdate>2010</creationdate><recordtype>report</recordtype><sourceid>CYI</sourceid><recordid>eNrjZPByrkzOyUxWSE4sScypLAGySgvSixJTMvPSFfLTFJIzUnMzkxNzFIoLUpMzU4sVSotBMrmpQNUK-RWZKakKuYklqUWZiTnFPAysaUAqlRdKczPIuLmGOHvo5iUWJ8bnlRQVxxsZGBoaAIG5hYExAWkA_VsxBg</recordid><startdate>20101102</startdate><enddate>20101102</enddate><creator>White, James H.</creator><creator>Schutte, Erick J.</creator><creator>Rolfe, Sara L.</creator><scope>CYE</scope><scope>CYI</scope></search><sort><creationdate>20101102</creationdate><title>Cyclic catalytic upgrading of chemical species using metal oxide materials</title><author>White, James H. ; Schutte, Erick J. ; Rolfe, Sara L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-nasa_ntrs_201100007803</frbrgroupid><rsrctype>reports</rsrctype><prefilter>reports</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Chemistry And Materials (General)</topic><toplevel>online_resources</toplevel><creatorcontrib>White, James H.</creatorcontrib><creatorcontrib>Schutte, Erick J.</creatorcontrib><creatorcontrib>Rolfe, Sara L.</creatorcontrib><collection>NASA Scientific and Technical Information</collection><collection>NASA Technical Reports Server</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>White, James H.</au><au>Schutte, Erick J.</au><au>Rolfe, Sara L.</au><format>book</format><genre>unknown</genre><ristype>RPRT</ristype><btitle>Cyclic catalytic upgrading of chemical species using metal oxide materials</btitle><date>2010-11-02</date><risdate>2010</risdate><abstract><![CDATA[Processes are disclosure which comprise alternately contacting an oxygen-carrying catalyst with a reducing substance, or a lower partial pressure of an oxidizing gas, and then with the oxidizing gas or a higher partial pressure of the oxidizing gas, whereby the catalyst is alternately reduced and then regenerated to an oxygenated state. In certain embodiments, the oxygen-carrying catalyst comprises at least one metal oxide-containing material containing a composition having one of the following formulas: (a) Ce.sub.xB.sub.yB'.sub.zB''O.sub..delta., wherein B=Ba, Sr, Ca, or Zr; B'=Mn, Co, or Fe; B''=Cu; 0.01<x<0.99; 0<y<0.6; 0<z<0.5; and 1<.delta.<2.2; (b) Sr.sub.vLa.sub.wB.sub.xB'.sub.yB''.sub.zO.sub..delta., wherein B=Co or Fe; B'=Al or Ga; B''=Cu; 0.01<v<1.4; 0.1<w<1.6; 0.1<x<1.9; 0.1<y<0.9; 0<z<2.2; and 3<.delta.<5.5).]]></abstract><cop>Glenn Research Center</cop><oa>free_for_read</oa></addata></record>
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title Cyclic catalytic upgrading of chemical species using metal oxide materials
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