화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.33, No.2, 500-506, February, 2016
DOI10.1007/s11814-015-0189-5  Export Citation
CO hydrogenation to higher alcohols over Ni- and Mo-modified Cu/CeO2 catalyst
Jun Chen, Wei Li†, and Rongchun Shen
  • State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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Ni-Mo promoted Cu/CeO2 catalyst was synthesized by co-precipitation method using 28%wt NH3·H2O as the precipitant. The catalysts were characterized by BET, XRD, TPR and XPS. The results showed that Ni and Mo could promote the reducibility of Cu, and the interaction between Ni and Mo may be needed for catalytic activity and higher alcohols synthesis. Therefore, CuNiMo/CeO2 catalyst showed a higher activity for higher alcohols synthesis than Cu/CeO2. In the meantime, the effect of pyrogallol used in preparing the CuNiMo/CeO2 catalyst was investigated. Pyrogallol had a significant influence on lowering the methanol selectivity and improving the C2+-OH selectivity. The methanol selectivity decreased from 52.99% to 44.81% and SC2+OH/SMeOH (MeOH denoted as methanol) ratio increased from 0.27 to 0.35. The XPS results gave evidence that pyrogallol can form complexes with Cu+ on the CeO2 support, which causes methanol decrease. In addition, pyrogallol could serve as a “temperature addictive agent” to save power.
Keywords:Co-precipitation;NH3·H2O;Higher Alcohol;Pyrogallol;Temperature Addictive Agent
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