화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.25, 338-343, May, 2015
DOI10.1016/j.jiec.2014.11.013  Export Citation
Enhanced activity of Cusingle bondFe/SiO2 catalyst for CO hydrogenation to higher alcohols by pretreating the support with ammonia
Ruili Lu, Dongsen Mao†, Jun Yu, and Qiangsheng Guo
  • Research Institute of Applied Catalysis, School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, PR China, Korea
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The effect of support pretreatment with ammonia on the performance of Cusingle bondFe/SiO2 catalyst for higher alcohols synthesis from syngas was studied by CO hydrogenation, X-ray diffraction, N2 adsorption-desorption, temperature-programmed reduction of H2, Fourier transform infrared spectroscopy, N2O chemisorption and temperature-programmed desorption of adsorbed CO. The results indicated that the pretreatment of SiO2 with ammonia resulted in the formation of more active sites of Cu and higher dispersion of Fe species on the catalyst surface and enhanced the synergistic effect between the copper and iron species. As a result, the CO conversion and the space time yield of alcohols of the Cusingle bondFe/SiO2 catalyst increased from 14.8% and 89.0 g kg-1 h-1 to 17.4% and 107.0 g kg-1 h-1, respectively.
Keywords:Cusingle bondFe/SiO2;Higher alcohols;CO hydrogenation;Ammonia;Silica pretreatment
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