负载型Ru基催化剂用于丙酮常压气相加氢  

Supported Ru Catalysts Applied in Hydrogenation of Acetoneunder the Condition of Atmosphere Press

作　　者：李万刚[1] 石秋杰[1] 谌伟庆[1] 

机构地区：[1]南昌大学应用化学研究所,江西南昌330047

出　　处：《分子催化》2004年第6期404-408,共5页Journal of Molecular Catalysis(China)

基　　金：江西省自然科学基金资助(0320012)项目.

摘　　要：采用气相脉冲法,首次将非晶态Ru-B合金催化剂用于催化丙酮常压气相加氢反应.研究结果表明负载型Ru-B合金催化剂在较低的反应温度下表现出了很高的活性及生成异丙醇的选择性;负载在γ-Al2O3上的非晶态Ru-B合金与晶态的Ru相比,活性及异丙醇的产率都有很大提高;采用不同载体的非晶态Ru-B合金催化剂活性不同,在所选定的反应温度下,以膨润土为载体的Ru-B合金催化剂的活性与异丙醇的产率均高于以γ-Al2O3作载体的.用程序升温还原(TPR),程序升温脱附(TPD),等离子体发射光谱(ICP)等方法对催化剂表面性质及含量进行了表征.The amorphous RuB alloy catalysts were applied to catalyze acetone hydrogenation under the condition of atmosphere press by the technique of pulse microreaction for the first time .The results showed that the catalysts exhibit high activity and selectivity to isopropanol.The activity and yield of isopropanol on RuB/γ-Al_2O_3 were higher than that on Ru/γ-Al_2O_3. The yield of isopropanol on RuB/Bn was higher than that on RuB/γ-Al_2O_3.The surface properties of the catalysts were characterized by TPR and TPD and the catalysts' composition was characterized by ICP.

关 键 词：钌 非晶态合金 丙酮加氢 载体 

分 类 号：O643.38[理学—物理化学]