Hybrid Cu-ZnO-ZrO2/H-ZSM5 system for the direct synthesis of DME by CO2 hydrogenation (Articolo in rivista)

Type
Label
  • Hybrid Cu-ZnO-ZrO2/H-ZSM5 system for the direct synthesis of DME by CO2 hydrogenation (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.apcatb.2013.03.048 (literal)
Alternative label
  • G. Bonura a, M. Cordaro b, L. Spadaro a, C. Cannilla a, F. Arena b, F. Frusteri a (2013)
    Hybrid Cu-ZnO-ZrO2/H-ZSM5 system for the direct synthesis of DME by CO2 hydrogenation
    in Applied catalysis. B, Environmental (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • G. Bonura a, M. Cordaro b, L. Spadaro a, C. Cannilla a, F. Arena b, F. Frusteri a (literal)
Pagina inizio
  • 16 (literal)
Pagina fine
  • 24 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 140 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • aCNR-ITAE, Institute for Advanced Energy Technologies \"Nicola Giordano\", Via S. Lucia Sopra Contesse, 5, 98126 Messina, bDepartment of Industrial Chemistry & Engineering Materials, University of Messina, V.le F. Stagno D'Alcontres 31, 98166 Messina (literal)
Titolo
  • Hybrid Cu-ZnO-ZrO2/H-ZSM5 system for the direct synthesis of DME by CO2 hydrogenation (literal)
Abstract
  • One-step CO2 hydrogenation reaction to dimethyl ether (DME) was studied on a hybrid system characterized by different reactor bed configurations (physical mixing, dual-bed and mono-bed). Homemade Cu-ZnO-ZrO2 methanol catalytic system and a commercial H-ZSM5 zeolite were used to realize the hybrid system. The influence of preparation method on activity, selectivity and yield in the temperature range of 453-513 K at 3.0 MPa and CO2/H2/N2 feed concentration of 3/9/1 has been evaluated. The results obtained under kinetic conditions show a superior specific productivity of ca. 430 gtotalMeOHkg-1 cath-1at 513 K using the hybrid catalyst prepared by physical mixing. A combined effect of sites located at metal/oxide(s)-acid interface to drive DME synthesis through a consecutive mechanism was claimed as the main factor affecting the CO2 conversion and DME productivity. (literal)
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