With the decrease of total acidity, the activity of aromatization decrease. With the decrease of strong Bronsted acid sites, cracking reactions decrease.

• 各改性HZSM-5分子筛催化剂芳构化性能变化与表面酸性有关,总酸量下降,芳构化活性下降,强B酸中心减少,深度裂解反应减少;