Catalytic behaviour of a bifunctional system for the one step synthesis of DME by CO2 hydrogenation (Articolo in rivista)

Type
Label
  • Catalytic behaviour of a bifunctional system for the one step synthesis of DME by CO2 hydrogenation (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.cattod.2013.11.017 (literal)
Alternative label
  • Bonura, Giuseppe; Cordaro, Manuela; Cannilla, Catia; Mezzapica, A.; Spadaro, Lorenzo; Arena, Francesco; Frusteri, Francesco (2014)
    Catalytic behaviour of a bifunctional system for the one step synthesis of DME by CO2 hydrogenation
    in Catalysis Today
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bonura, Giuseppe; Cordaro, Manuela; Cannilla, Catia; Mezzapica, A.; Spadaro, Lorenzo; Arena, Francesco; Frusteri, Francesco (literal)
Pagina inizio
  • 51 (literal)
Pagina fine
  • 57 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.scopus.com/record/display.url?eid=2-s2.0-84896988415&origin=inward (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 228 (literal)
Rivista
Note
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto Di Tecnologie Avanzate Per L'energia, Messina; Universita degli Studi di Messina (literal)
Titolo
  • Catalytic behaviour of a bifunctional system for the one step synthesis of DME by CO2 hydrogenation (literal)
Abstract
  • tOne-step CO2hydrogenation reaction to dimethyl ether (DME) on a bifunctional system constitutedby Cu-ZnO-ZrO2(ZCZ) methanol synthesis catalyst and HZSM-5 zeolite was studied. The influenceof the reactor configuration in terms of combination procedure of the admixed samples on activ-ity, selectivity and DME yield has been evaluated. The results obtained at TR= 513 K, PR= 3.0 MPa andGHSV = 9000 NL gcat-1h-1show a superior DME productivity (4.4 mmol kgZCZ-1s-1) using the bifunctionalcatalyst prepared by physical mixing. A combined effect of active sites located at metal/oxide(s)-acidinterface was claimed as the main factor affecting the CO2conversion and DME productivity. The strongsurface acidity of ZCZ catalyst is not suitable to drive DME synthesis through a consecutive mechanism,while DME formation effectively proceeds on weak and medium acid sites of HZSM-5. (literal)
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