... pore)、孔洞体积(pore volume)、表面积大小(surface area)、管壁厚度(wall thickness)、 水热稳定性 ( hydrothermal stability )与不同颗粒大小的奈米尺寸中孔洞分子筛。奈米尺寸中孔分 子筛之详细物理性质如下表一所示。
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热和水热稳定性 thermal and hydrothermal stability
The analysis results show that the amount of Cl of spherical alumina modified by hot water and ammonia was highly reduced. The hydrothermal stability has been improved and the surface acidity has been decreased.
分析结果表明，水洗法和氨水洗涤法可有效降低球形氧化铝载体的氯含量，在一定程度上提高了球形氧化铝载体的水热稳定性和降低了表面酸量。
参考来源 - 碳二加氢催化剂用球形氧化铝载体制备及性能研究·2,447,543篇论文数据，部分数据来源于NoteExpress
该助剂还具有良好的水热稳定性、抗磨损性及合适的粒度分布。
It has good thermal stability, strong abrasion resistance and appropriate particle size distribution.
催化剂活性高，异丁烯选择性好，水热稳定性好，抗重金属能力强。
It is characterized with good activity, good iso-olefins selectivity, hydrothermal stability and heavy metal tolerance.
镧离子也有稳定骨架的作用，更重要的是能提高酸中心的水热稳定性。
Proper increase of La ion exchange degree not only increased the stability of the framework structure but also the hydrothermal stability of acid sites.
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