Preferential CO oxidation over Pt-SnO2/Al2O 3 in hydrogen rich streams containing CO2 and H 2O (CO removal from H2 with PROX)
Catalysis Letters, cilt.111, sa.3-4, ss.173-176, 2006 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 111 Sayı: 3-4
- Basım Tarihi: 2006
- Doi Numarası: 10.1007/s10562-006-0143-6
- Dergi Adı: Catalysis Letters
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.173-176
- Anahtar Kelimeler: Fuel cell, Fuel processor, Pt-SnO2/Al2O3 sol-gel catalyst, Selective CO oxidation
- Boğaziçi Üniversitesi Adresli: Evet
Özet
The effects of reaction gases including CO2 and H2O and temperature on the selective low-temperature oxidation of CO were studied in hydrogen rich streams using a flow micro-reactor packed with a Pt-SnO 2/Al2O3 sol-gel catalyst that was initially designed and optimized for operation in the absence of CO2 and H 2O. 100% CO conversion was achieved over the 1 wt% Pt-3 wt% SnO 2/Al2O3 catalyst at 110 °C using a feed composition of 1.0% CO, 1.5% O2, 25% CO2, 10% H 2O, 58% H2 and He as balance at a space velocity of 24,000 cm3/(g h). CO2 in the feed was found to decrease CO conversion significantly while the presence of H2O in the feed increased CO conversion, balancing the effect of CO2. © Springer Science+Business Media, Inc. 2006.