本文以Zn~(2+)为探针离子,通过ZnZSM-5-0及ZnZSM-5-800分子筛结构的测定,得到了HZSM-5分子筛晶内存在二种质子酸中心的结论,给出了这二种酸中心在晶内的分布、强弱、数量及稳定性等结果.讨论了Al在骨架中的几率分布,并将酸中心的微观分布与酸性的NH_3-TPD表征进行了关联.根据低碳醇、正已烷及异丙苯在HZSM-5-T上裂化产品的分布,初步得出了这二种质子酸中心的催化功能的概况. In this paper, the Zn 2+ (2+) is used as the probe ion to determine the existence of two kinds of protonic acid centers in the HZSM-5 molecular sieve via the determination of the structures of ZnZSM-5-0 and ZnZSM-5-800. The distribution, strength, quantity and stability of these two kinds of acid centers in the crystal were discussed.The probability distribution of Al in the framework was discussed, and the microscopic distribution of acid sites was correlated with the acidity NH_3-TPD characterization. The distribution of the cracking products on HZSM-5-T with low carbon alcohol, n-hexane and cumene preliminary obtained the overview of the catalytic functions of these two kinds of protonic acid centers.