1 Ocak 2012 Dergi makalesi Açık Erişim

Ates, Ayten; Hardacre, Christopher; Goguet, Alexandre

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/85437</identifier>
  <creators>
    <creator>
      <creatorName>Ates, Ayten</creatorName>
      <givenName>Ayten</givenName>
      <familyName>Ates</familyName>
      <affiliation>Cumhuriyet Univ, Fac Engn, Dept Chem Engn, TR-58140 Sivas, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Hardacre, Christopher</creatorName>
      <givenName>Christopher</givenName>
      <familyName>Hardacre</familyName>
      <affiliation>Queens Univ Belfast, Sch Chem &amp; Chem Engn, Belfast BT9 5AG, Antrim, North Ireland</affiliation>
    </creator>
    <creator>
      <creatorName>Goguet, Alexandre</creatorName>
      <givenName>Alexandre</givenName>
      <familyName>Goguet</familyName>
      <affiliation>Queens Univ Belfast, Sch Chem &amp; Chem Engn, Belfast BT9 5AG, Antrim, North Ireland</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Oxidative Dehydrogenation Of Propane With N2O Over Fe-Zsm-5 And Fe-Sio2: Influence Of The Iron Species And Acid Sites</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2012</publicationYear>
  <dates>
    <date dateType="Issued">2012-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/85437</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1016/j.apcata.2012.06.038</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">A series of iron containing zeolites with varying Si/Al ratios (11.5-140) and low iron content (similar to 0.9 wt.% Fe) have been synthesised by solid-state ion exchange with commercially available zeolites and tested, for the first time, in the oxidative dehydrogenation of propane (ODHP) with N2O. The samples were characterised by XRD, N-2-Adsorption, NH3-TPD and DR-UV-vis spectroscopy. The acidity of the Fe-ZSM-5 can be controlled by high temperature and steam treatments and Si/Al ratio. The selectivity and yield of propene were found to be the highest over Fe-ZSM-5 with low Al contents and reduced acidity. The initial propene yield over Fe-ZSM-5 was significantly higher than that of Fe-SiO2 since the presence of weak and/or medium acid sites together with oligonuclear iron species and iron oxides on the ZSM-5 are found to enhance the N2O activation. The coking of Fe-ZSM-5 catalysts could also be controlled by reduction of the surface acidity of ZSM-5 and by the use of O-2 in addition to N2O as the oxidant. Fe-ZSM-5 zeolites prepared with solid-state method have been shown to have comparable activity and better stability towards coking compared with Fe-ZSM-5 zeolites prepared by liquid ion exchange and hydrothermal synthesis methods. (C) 2012 Elsevier B.V. All rights reserved.</description>
  </descriptions>
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