用常压脉冲微反色谱法研究了几个典型化合物在稀土含量不同的铂稀土氧化铝(稀土指铈、镝、钇,氧化铝属γ—型)催化剂上的重整反应。在实验的条件下,铈、镝和钇改变了负载型铂的催化性质。这些稀土元素的改性作用的特性,实质上是有区别的。对于同一稀土元 The reforming reactions of several typical compounds on platinum-based rare earth aluminosilicates (rare earth-based cerium, dysprosium, yttrium, and aluminum is a γ-type) catalysts were studied by means of pulsed-pressure micro-chromatography. Under the experimental conditions, cerium, dysprosium and yttrium changed the catalytic properties of supported platinum. The characteristics of the modification of these rare earth elements, in essence, are different. For the same rare earth element