研究了不同硅铝比 Hβ沸石对β甲基萘的催化性能。结果表明催化活性与β沸石的酸量成顺变关系 ;在硅铝比较高的β沸石上 ,主要发生异构化反应 ,而在硅铝比较低的β沸石上则主要发生歧化反应 ,且歧化反应选择性主要受催化剂的 L酸中心影响 The catalytic performance of β-methylnaphthalene with different Si / Al ratio Hβ zeolites was studied. The results show that the catalytic activity is in a cis relationship with the zeolite β zeolite. In the zeolite with higher Si / Al ratio, isomerization occurs mainly in the zeolite with low Si / Al ratio, and the disproportionation reaction mainly occurs in the zeolite with relatively low Si / Al ratio. Selectivity is mainly affected by the L acid sites of the catalyst