Steam reforming of n-hexadecane over noble metal-modified Ni-based catalysts

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• 作者：Dae Hyun Kim ; Jung Shik Kang ; Yun Joo Lee ; Nam Kuk Park ; Young Chul Kim ; Suk In Hong ; Dong Ju Moon
• 关键词：Steam reforming ; n-Hexadecane ; Ni-based catalyst ; Noble metal-modified Ni-based catalyst ; Hydrotalcite ; Carbon formation
• 刊名：Catalysis Today
• 出版年：2008
• 期刊代码：13_09205861
• 类别：ce
• 出版时间：31 July 2008
• 卷：136
• 期：3-4
• 页码：228-234
• 文件大小：964 K

摘要

Steam reforming of n-hexadecane, a main constituent of diesel, over noble metal-modified Ni-based hydrotalcite catalyst was carried out in a temperature range of 700–950 °C, at an atmospheric pressure with space velocity of 10,000–100,000 h⁻¹ and feed molar ratio of H₂O/C = 3.0. The catalysts were prepared by a co-precipitation and dipping methods. The noble metal-modified Ni-based hydrotalcite catalyst displayed higher resistance for the sintering of active metal than the Ni-based hydrotalcite catalyst prepared by the conventional method. It was found that the Rh-modified Ni-based catalysts showed high resistance to the formation of carbon compared to Ni-based catalysts. The results suggest that Rh-modified Ni-based catalyst can be applied for the steam reforming (SR) reaction of diesel.