还原温度对氧化铁吸附性能的影响  

Characterization of Adsorption on Iron Oxide with Various Reduced Temperature

作　　者：刘晨湘[1] 李燕红[1] 马卓娜[1] 李利民[1] 郭益群[1] 

机构地区：[1]郑州大学化学化工学院,郑州450052

出　　处：《化学研究》1999年第3期49-52,共4页Chemical Research

摘　　要：利用脉冲气相色谱保留体积法测定了不同还原温度的氧化铁样品对水的吸附特性并和Ｘ光衍射结果进行了关联，同时测定了含铬氧化铁对水的吸附特性。结果表明，中温还原样品有比较均匀的表面，低温和高温还原样品的表面均有一定程度的不均匀性且符合焦姆金吸附方程。铬的加入降低了氧化铁对水的吸附热。The adsorption properties of steam on iron oxide and iron oxide containing chromium oxide with various reduced temperatures were studied,it showed that the number of adsorption centers of the sample at 170℃ reduction was less than that at 195℃～300℃. When reduction temperature ranged 195℃～280℃,the surface of the sample was homogeneous.This result provedconsistent with X ray deflection experiment.The adsorption heat of simples containing chromium oxide decreased.

关 键 词：氧化铁 铁系 中温变换催化剂 催化剂 吸附性能 

分 类 号：TQ113.247[化学工程—无机化工] TQ426.8