本文用动态程序升温脱附的方法,研究了甲苯等芳烃在氢型丝光佛石(HM)上表面反应的活性中心,并从脱附谱得到了有用的信息。脱附谱中共有四个峰,每个峰均对应于不同的化学过程。色谱分析的结果说明,第Ⅰ峰为脱烷基反应的活性中心,第Ⅱ峰为歧化和异构化的活性中心。因此从实验结果可以比较直观地观察到活性中心的种类,初步得到了有关HM对甲苯歧化、脱烷基等反应的活性、选择性及稳定性的信息。 In this paper, the active sites of toluene and other aromatics are studied on the surface of hydrogen-type mercerized feldspar (HM) by dynamic temperature-programmed desorption. And the useful information is obtained from the desorption spectra. There are four peaks in the desorption spectrum, each corresponding to a different chemical process. Chromatographic analysis shows that the first peak is the active center of the dealkylation reaction and the second peak is the active center of disproportionation and isomerization. Therefore, the experimental results can be more intuitive to observe the type of active center, initially obtained HM of toluene disproportionation, dealkylation reactions such as activity, selectivity and stability of the information.