Selective oxidation of propane over PMoVM/α‐Al2O3 (M: Co, Fe, or Ni)
Identifieur interne : 000684 ( Main/Exploration ); précédent : 000683; suivant : 000685Selective oxidation of propane over PMoVM/α‐Al2O3 (M: Co, Fe, or Ni)
Auteurs : L. Dermeche [Algérie] ; S. Hocine [Algérie] ; M. M. Bettahar [France] ; C. Rabia [Algérie]Source :
- The Canadian Journal of Chemical Engineering [ 0008-4034 ] ; 2009-08.
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Abstract
Alumina supported phosphovanodomolybdic acid and alumina supported phosphovanodomolybdic acid‐transition metal ions (M: Fe3+, Co2+, or Ni2+) were prepared by impregnation. The thermal decomposition, in situ at 400°C, of supported catalysts showed the formation of V2O5, P2O5, MoO3 and MoO3, CoMoO4, (Mo0.3V0.7)2O5 phases, on the alumina surface, in the presence of H4PMo11VO40/α‐Al2O3 and H4PMo11VO40Co/α‐Al2O3, respectively. The catalytic activity of alumina‐supported catalysts was evaluated in the reaction of propane oxidation at 380 and 400°C. The addition of transition metal increases the conversion and changes the reaction products distribution. The reaction conditions (temperature and propane/oxygen ratio) have also modified the behaviour of the studied catalysts.
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DOI: 10.1002/cjce.20182
Affiliations:
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<front><div type="abstract" xml:lang="en">Alumina supported phosphovanodomolybdic acid and alumina supported phosphovanodomolybdic acid‐transition metal ions (M: Fe3+, Co2+, or Ni2+) were prepared by impregnation. The thermal decomposition, in situ at 400°C, of supported catalysts showed the formation of V2O5, P2O5, MoO3 and MoO3, CoMoO4, (Mo0.3V0.7)2O5 phases, on the alumina surface, in the presence of H4PMo11VO40/α‐Al2O3 and H4PMo11VO40Co/α‐Al2O3, respectively. The catalytic activity of alumina‐supported catalysts was evaluated in the reaction of propane oxidation at 380 and 400°C. The addition of transition metal increases the conversion and changes the reaction products distribution. The reaction conditions (temperature and propane/oxygen ratio) have also modified the behaviour of the studied catalysts.</div>
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