低温液相合成甲醇用新型铜基催化剂研究  

Investigation on Novel Copper-based Catalysts for Low Temperature Methanol Synthesis (LTMS) in Liquid Phase

作　　者：王立楠[1] 储伟[1] 张雄伟[1] 徐士伟[1] 戴晓雁[1] 

机构地区：[1]四川大学化工学院,四川成都610065

出　　处：《天然气化工—C1化学与化工》2005年第1期27-30,共4页Natural Gas Chemical Industry

基　　金：国家自然科学基金(2 990 30 11);973国家重点基础研究发展规划项目分题资助

摘　　要：应用络合共沉淀法制备了低温液相合成甲醇用新型铜铬硅催化剂 ,并采用TPR、XRD和TG等表征手段对催化剂的结构进行了表征 ,考察了铬含量、催化助剂以及活性中心价态对催化剂活性影响。结果表明 ,当w(Cr) =32 32 %时最优 ,甲醇的时空产率可达 2 32 5mmol/ (molCu·min) ;w(Cr) =12 32 %时助剂Zr、Mn的添加使甲醇收率提高Novel Cu-Cr-Si based catalysts were prepared by complex co-precipitation, and their performances were investigated in a slurry reactor for low temperature methanol synthesis. The catalysts were also characterized by TPR, XRD and TG techniques. The results showed that the optimal content of Cr was 32.32wt%, while the STY of methanol was up to 232.5 mmol/(molCu·min). The STY of methanol was increased 30 times with the addition of promoter Zr, Mn in the system when the content of Cr was 12.32wt%.

关 键 词：Cu-Cr-Si催化剂 低温甲醇合成 浆态床 催化助剂 结构表征 

分 类 号：O643[理学—物理化学]