Hydrogen production by steam reforming of acetic acid as a model compound of bio-oil over Ni-Ce-Mg/olivine catalyst
Hydrogen production by steam reforming of acetic acid as a model compound present in bio-oil over Ni based catalysts were investigated. In this study, olivine was used as a substrate and catalysts were prepared by wet impregnation. However, NiO/olivine catalysts were easy to be deactivated due to carbon deposition. CeO2 was used as a promoter in Ni based catalysts not only to enhance the resistance to coke formation, but also to improve the catalytic activity of catalysts obviously. MgO could improve the resistance to carbon deposition, too. Besides, the stability of catalysts were improved. The catalyst of 6％Ni-3％Ce-1％Mg/olivine performed optimum activity at T=750~C, S/C=5, SV=6000h-1, with acetic acid conversion closed to 100％ and hydrogen yield reached up to 75.92％. The deactivation didnt occur clearly during continuous reaction for 70 hours.
Hydrogen bio-oil steam reforming acetic acid Ni based catalyst
Xing-min XU Chang-sen ZHANG Rui-qin ZHANG
Research Institute of Environmental Sciences & Department of Chemistry,Zhengzhou University,Zhengzhou 450001,Henan,China
国际会议
广州
英文
1294-1301
2008-12-03（万方平台首次上网日期，不代表论文的发表时间）