燃料化学学报2012，Vol.40Issue(4)：436-440,5.
La促进CuCo催化剂上合成气转化制低碳醇的研究
Studies on higher alcohols from syngas over the La promoted CuCo catalysts
摘要
Abstract
CuCo-based catalysts for the synthesis of higher alcohols from syngas were prepared by the ultrasound assisted reverse coprecipitation. The effects of rare earth La promoter on the structure and catalytic performance were investigated. The catalysts were systematically characterized by means of X-ray diffraction (XRD), N2 adsorption isotherm ( BET) and temperature-programmed desorption (CO-TPD) techniques. The catalytic performance for CO hydrogenation to higher alcohols was also evaluated. The experimental results showed that with the addition of La, the crystal size of the sample was decreased, the specific surface area was increased notably, the formation of the active sites for alcohol formation was improved and the concentration of more strongly adsorbed CO-species was increased. Therefore, the catalytic activity and higher selectivity to C2+ alcohols were improved obviously, and the content of methanol in mixed alcohols was reduced significantly.关键词
稀土/CuCo基催化剂/催化性能/低碳醇Key words
rare earth/ CuCo-based catalyst/ catalytic performance/ higher alcohols分类
化学化工引用本文复制引用
士丽敏,储伟,邓思玉..La促进CuCo催化剂上合成气转化制低碳醇的研究[J].燃料化学学报,2012,40(4):436-440,5.基金项目
陕西省教育厅自然科学专项(2010JK608) （2010JK608）
西安工业大学科学研究基金(204-000092). （204-000092）
