[V,Al]-MCM-22 catalyst in the oxidative dehydrogenation of propane (Articolo in rivista)

Type
Label
  • [V,Al]-MCM-22 catalyst in the oxidative dehydrogenation of propane (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.cattod.2007.11.012 (literal)
Alternative label
  • A. A. Teixeira-Neto; L. Marchese; G. Landi; L. Lisi; H. O. Pastore (2008)
    [V,Al]-MCM-22 catalyst in the oxidative dehydrogenation of propane
    in Catalysis Today
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • A. A. Teixeira-Neto; L. Marchese; G. Landi; L. Lisi; H. O. Pastore (literal)
Pagina inizio
  • 1 (literal)
Pagina fine
  • 6 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 133-135 (literal)
Rivista
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Grupo de Peneiras Moleculares Micro e Mesoporosas, Instituto de Qu?´mica, UNICAMP, CP 6154, CEP 13084-862, Campinas-SP, Brazil Dipartimento di Scienze e Tecnologie Avanzate, Universita` del Piemonte Orientale ''A. Avogadro'', Via Bellini 25G, I-15100 Alessandria, Italy Istituto Ricerche sulla Combustione, CNR, P.le Tecchio, 80 Napoli, Italy (literal)
Titolo
  • [V,Al]-MCM-22 catalyst in the oxidative dehydrogenation of propane (literal)
Abstract
  • MCM-22 zeolite containing vanadium atoms either at structural or at ion-exchange positions was synthesized and tested in propane oxidative dehydrogenation (ODH) reaction in a fixed bed reactor, at temperatures between 340 and 5608C. Acidity of these materials, as well as of similar materials that did not contain vanadium, was characterized by ammonia temperature programmed desorption (TPD-NH3). Vanadoaluminosilicates contain a higher number of acid sites, which present higher acidity in relation to the aluminosilicates. They also presented better performances in propane ODH, as they lead to higher values of conversion without loss of selectivity. Ion-exchange with alkaline ions leads to a decrease in cracking reactions, which are caused by strong Brønsted acid sites. (literal)
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