燃料化学学报2016，Vol.44Issue(8)：993-1000,8.
Ni-Fe/蒙脱土催化剂催化乙醇水蒸气重整制氢的研究
Montmorillonite supported Ni-Fe catalysts for hydrogen production from steam reforming of ethanol
摘要
Abstract
Ni-Fe/montmorillonite ( MMT ) catalysts were prepared by impregnation method for hydrogen production via ethanol steam reforming. The catalysts were characterized by XRD, H2-TPR, and N2 adsorption-desorption . It was found that Ni-Fe bimetallic catalysts exhibited higher activities and stability than single metallic catalysts due to the well dispersed Ni-Fe, small nickel crystallites and stronger interaction between Ni2+ and carrier. The conversion and selectivity were affected by the ratio of Ni to Fe. The 10Ni5Fe/MMT catalyst showed the optimum catalytic performance, its ethanol conversion was 100%, the selectivity of hydrogen gas remained at 72%, and selectivity of CO and CH4 were significantly decreased at 500℃ during 30 h testing. This could be attributed to the promoter Fe, which improves the dispersion of Ni and results in a good ESR activity at low reaction temperature. Small Ni particles can suppress methane formation and Fe addition can enhance the methane reforming with water and water gas shift reaction, resulting in higher selectivity of hydrogen.关键词
Ni-Fe/蒙脱土/乙醇/水蒸气重整/制氢Key words
Ni-Fe/montmorillonite/ethanol/water steam reforming/hydrogen production分类
化学工程引用本文复制引用
李宝茹,殷雪梅,吴旭,安霞,谢鲜梅..Ni-Fe/蒙脱土催化剂催化乙醇水蒸气重整制氢的研究[J].燃料化学学报,2016,44(8):993-1000,8.基金项目
The project was supported by the National Natural Science Foundation of China (51541210) and the Natural Science Foundation of Youths of Shanxi Province, China (2013021008-4).国家自然科学基金(51541210)和山西省自然科学基金(2013021008-4)资助 （51541210）
