Oxidative dehydrogenation of ethane over a monolith coated by molybdenum-vanadium-niobium mixed-oxide catalyst

Karamullaoglu G., Dogu T.

CHEMICAL ENGINEERING COMMUNICATIONS, cilt.190, sa.10, ss.1427-1438, 2003 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 190 Sayı: 10
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1080/00986440390225963
  • Dergi Adı: CHEMICAL ENGINEERING COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1427-1438
  • Anahtar Kelimeler: oxidative dehyrogenation, ethane, monolith, mixed-oxide catalyst, DRIFTS, PROPANE, MECHANISM
  • Orta Doğu Teknik Üniversitesi Adresli: Hayır

Özet

Oxidative dehydrogenation of ethane to ethylene was investigated using Mo0.71V0.21N0.08 mixed-oxide catalyst. in powder form and coated over a monolith. At 570degreesC and with a feed stream containing an O-2/C2H6 mole ratio of one. ethylene selectivity value reaching to 96% was obtained Lit a conversion level of about 5% with the monolith-supported catalyst. DRIFTS studies indicated the presence of adsorbed ethoxide species. The proposed reaction scheme for the production of ethylene includes the elimination of beta-hydrogen of adsorbed species by the lattice oxygen.