Enhanced activity of CuFe/SiO2 catalyst for CO hydrogenation to higher alcohols by pretreating the support with ammonia
作者： Ruili Lu , Dongsen Mao , Jun Yu , Qiangsheng Guo
DOI: 10.1016/J.JIEC.2014.11.013
关键词:
摘要: Abstract The effect of support pretreatment with ammonia on the performance Cu Fe/SiO2 catalyst for higher alcohols synthesis from syngas was studied by CO hydrogenation, X-ray diffraction, N2 adsorption–desorption, temperature-programmed reduction H2, Fourier transform infrared spectroscopy, N2O chemisorption and desorption adsorbed CO. results indicated that SiO2 resulted in formation more active sites dispersion Fe species surface enhanced synergistic between copper iron species. As a result, conversion space time yield increased 14.8% 89.0 g kg−1 h−1 to 17.4% 107.0 g kg−1 h−1, respectively.
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