کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1290795 | 973337 | 2007 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Perovskite catalysts for the auto-reforming of sulfur containing fuels Perovskite catalysts for the auto-reforming of sulfur containing fuels](/preview/png/1290795.png)
The ideal fuel for PEMs and SOFC fuel cells is pure hydrogen, which is not available in nature and thus needs to be produced from other resources. It is a special task to make hydrogen from JP-8 (kerosene-based jet propulsion fuel), which consists of high hydrocarbon and aromatic compounds, as well as contains a significant amount of sulfur (up to 3000 ppm). The auto-thermal reforming (ATR) process is externally energy-intensive and cost-effective method for hydrogen generation. However, it is critical to develop highly efficient, low-cost catalyst. This paper presents a detailed description of a novel combustion approach for synthesis of complex LaFeO3-based catalysts. The activities of these catalysts for ATR of JP-8 fuel were also tested in unique Micro-Scale Bench-Top Reactor System. Several non-noble (Me = K, Na, Li, Cs, Co, Mo) and noble metals additives (Me = Pt, Pd, Ru, Re) were tested as B-site substitution in La0.6Ce0.4Fe0.8−ZNi0.2MeZO3−δ perovskite to find the compositions that possess stable and effective performance under severe sulfur containing environment. It was shown that small amounts of potassium (2 wt.%) or ruthenium (1 wt.%) doped to above perovskite structure significantly increase catalysts activity and lead to their stable performance during reforming of JP-8 fuel with up to 220 ppm of sulfur.
Journal: Journal of Power Sources - Volume 167, Issue 2, 15 May 2007, Pages 472–481