How is activated alumina used to remove water from gases and liquids?

Activated alumina is a highly porous, granular form of aluminum oxide produced by heating aluminum hydrates to drive off water. This heating process creates a specialized structure that enables the material to function as an effective adsorbent.12

When used to remove water from gases and liquids, activated alumina acts as a desiccant by trapping water molecules within its porous surface. Because of its high surface area and affinity for moisture, it is widely employed in industrial settings to dry various substances. In addition to its role as an adsorbent, activated alumina is also utilized as a substrate or carrier for catalysts in numerous chemical reactions.123