To meet the needs for study the shapeselectivity of zeolite molecular sieves, an approach for estimation of molecular dimensions was developed.
为满足研究沸石分子筛择形选择性的需要，对分子尺寸的估算进行了探讨。
2
SAPO is a novel class of catalytic materials which exhibit excellent shapeselectivity, thermal stability and hydrothermal stability, which can catalyze hydrocarbon reactions.