Author/Authors :
Xiang، نويسنده , , Minglin and Li، نويسنده , , Debao and Xiao، نويسنده , , Haicheng and Zhang، نويسنده , , Jianli and Qi، نويسنده , , Huijie and Li، نويسنده , , Wenhuai and Zhong، نويسنده , , Bing and Sun، نويسنده , , Yuhan، نويسنده ,
Abstract :
Fischer–Tropsch elements (Fe, Co and Ni) modified K/β-Mo2C catalysts were prepared and investigated for their performance in CO hydrogenation. The results revealed that Ni or Co modified K/β-Mo2C catalysts were shown to be highly active and selective towards the synthesis of mixed alcohols, especially for the C 2 + OH production, but Fe caused a negative effect. Ni or Co led to a decrease in apparent activation energies for C1–C4 alcohols, whereas Fe caused a slight increase for methanol and the decrease for C2–C4 alcohols. As a result, the promotion effects of Fischer–Tropsch elements were different and followed the sequence: Ni ≫ Co > Fe for the activity and Ni > Co > Fe for the C 2 + OH alcohol selectivity.
