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用吡啶和位阻胺吸附、吡啶吸附红外光谱（ＩＲ）、氨程序升温脱附（ＴＰＤ）和微反活性试验（ＭＡＴ）对比考察了目前工业上使用的几种超稳Ｙ沸石（ＵＳＹ、ＲＥＹ、ＳＲＮＹ、ＦＳＹ）及作者改进的超稳Ｙ沸石（ＩＩＳＹ）的酸密度、酸强度变化情况及微反活性。结果表明，酸性及活性的变化情况与沸石制备方法有关。Ｂ酸强度随骨架硅铝比的升高而增强，其密度随温度升高急剧减少。Ｂ酸对活性有明显的影响。Ｌ酸中心强度随硅铝比升高变化很少。除ＲｅＹ外，Ｌ酸密度随温度升高减少的程度远比Ｂ酸慢，在一定的温度范围内基本不变。
The effects of pyridine and hindered amine adsorption, pyridine adsorption infrared spectroscopy (IR), ammonia temperature-programmed desorption (TPD) and micro-activity test (MAT) were compared. , SRNY, FSY) and the author’s modified ultra-stable Y zeolite (IISY) acid density, acid strength changes and micro-activity. The results show that the changes of acidity and activity are related to the preparation of zeolite. The acid strength of B increases with the increase of Si / Al ratio, and its density decreases sharply with the increase of temperature. B acid has a significant effect on the activity. L acid center intensity changes with the silicon-aluminum ratio changes very little. In addition to ReY, L acid density decreases with the temperature to a greater extent than the B acid slow, in a certain temperature range substantially unchanged.