Steam reforming of ethanol over Pt-Ni Catalysts
Catalysis Today, cilt.138, sa.3-4, ss.183-186, 2008 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 138 Sayı: 3-4
- Basım Tarihi: 2008
- Doi Numarası: 10.1016/j.cattod.2008.05.035
- Dergi Adı: Catalysis Today
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.183-186
- Anahtar Kelimeler: Ethanol steam reforming, Hydrogen production, Kinetics, Pt-Ni catalysts
- Boğaziçi Üniversitesi Adresli: Evet
Özet
A parametric study was conducted over Pt-Ni/δ-Al2O3 to explore the effect of Pt and Ni contents on the ethanol steam reforming characteristics of the bimetallic catalyst. Experiments with catalysts having 0.2-0.3 wt%Pt and 10-15 wt%Ni contents indicated that the best ethanol steam reforming performance is achieved over 0.3 wt%Pt-15 wt%Ni/δ-Al2O3. Kinetics of ethanol steam reforming was studied over this catalyst in the 673-823 K interval using differential and integral methods of data analysis. A power-function rate expression was obtained with reaction orders of 1.01 and -0.09 in ethanol and steam, respectively, and the apparent activation energy of ethanol steam reforming over 0.3 wt%Pt-15 wt%Ni/δ-Al2O3 was calculated as 59.3 ± 2.3 kJ mol-1. © 2008 Elsevier B.V. All rights reserved.