【摘要】 文章制备了非晶态还原型Ni基催化剂,进行了催化加氢糠醛和半纤维素制备燃料添加剂的研究。实验结果表明,在非晶态载体表面,助催化剂Mo的引入有利于金属Ni组分的还原和聚集。非晶态HZ-Mo催化剂可以实现糠醛的完全转化,燃料添加剂的选择性达到64.9%。溶剂对还原型金属催化剂催化半纤维素的加氢产物有显著的影响。以工业乙醇为溶剂时,获得了32.0%的呋喃类产物;以水为溶剂时,获得了58.5%酮类产物。随着反应温度的升高,非晶态还原型催化剂的催化活性增加。更多还原

【Abstract】 In this paper,amorphous reduced Ni-based catalysts were developed,and the catalytic hydrogenation of furfural and hemicellulose to produce fuel additives was studied. The results show that promoter Mo is beneficial to the reduction and aggregation of Ni metal on the surface of amorphous support. Furfural can be completely converted by amorphous HZ-Mo catalyst, and the selectivity of fuel additives reaches 64.9%.Solvent has a significant effect on the hydrogenation products of hemicellulose with reduced metal catalyst. The furans derivatives selectivity of 32.0% with the solvent of industrial ethanol and ketones derivatives selectivity of 58.5% with the solvent of water are obtained with HZ-Mo. As reaction temperature increases,the hydrogenation activity of amorphous reduced catalyst is enhanced.更多还原