Water-gas shift reaction over bimetallic Pt-Ni/Al2O3 catalysts
Turkish Journal of Chemistry, cilt.33, sa.2, ss.249-256, 2009 (SCI-Expanded, Scopus, TRDizin)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 33 Sayı: 2
- Basım Tarihi: 2009
- Doi Numarası: 10.3906/kim-0809-32
- Dergi Adı: Turkish Journal of Chemistry
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
- Sayfa Sayıları: ss.249-256
- Anahtar Kelimeler: CO removal, High temperature shift (HTS), Pt-Ni, Water-gas shift
- Boğaziçi Üniversitesi Adresli: Evet
Özet
The water-gas shift (WGS) activity of bimetallic Pt-Ni/Al2 O3 catalysts was investigated in the temperature range 200-450° C using an idealized feed composition consisting of 3% CO and 6%-10% H2O. The effects of the Ni content, space velocity, and H2O/CO ratio on the catalytic performance of the catalysts were studied. An increase in the Ni content and H2O/CO ratio shifted the carbon monoxide conversion-temperature curve toward lower reaction temperatures. No detectable methane formation was observed in the catalytic reaction tests. The results indicate that Pt-Ni/Al2O3 catalysts are highly selective and active for water-gas shift reactions under idealized conditions. © TÜBİTAK.