יישום של אלומינה פעילה בספיחה וקטליזה

לאלומינה פעילה יש שטח פנים ספציפי גדול, מגוון מבני נקבוביות והתפלגות גודל נקבוביות, ותכונות פני שטח עשירות. לכן, יש לו מגוון רחב של שימושים בסופחים, זרזים ותמיכות זרז.

Alumina for adsorbent and catalyst carrier is a fine chemical and also a special chemical. Different uses have different requirements on the physical structure, which is the reason for its strong speciality and many varieties and brands. According to statistics, the amount of alumina used as catalyst and carrier is more than the total amount of catalyst used in molecular sieve, silica gel, activated carbon, diatomaceous earth and silica-alumina. It can be seen that alumina plays a pivotal role in catalysts and supports. Among them, η-Al2O3 and γ-Al2O3 are the most important catalysts and supports. They are both spinel structures with defects. The difference between the two is: The regularity is different (γ>η) and the Al-O bond distance is different (η>, ההבדל הוא 0.05-0.1nm).