Activated alumina is a porous alumina material with high surface area and strong surface activity. A key advantage is that it is regenerable and reusable. After it becomes saturated with adsorbates, for example water molecules, heating, typically at 100°C to 350°C, desorbs the retained species and restores capacity. This cyclic use significantly reduces operating costs. Thanks to its distinctive physical and chemical properties, it is widely used across many fields:
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Gas drying: Deep drying of industrial gases such as hydrogen, oxygen, nitrogen, argon, acetylene, cracked gas, natural gas, associated petroleum gas, and coal gas. It can lower gas dew points to below −70°C.
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Liquid drying: Dehydration of organic liquids, for example transformer oil, lubricating oil, gasoline, and kerosene, as well as certain inorganic liquids, preventing moisture from harming equipment or interfering with reactions.
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Air drying: Drying compressed air in compressors, oxygen generators, and refrigeration systems, helping prevent icing and corrosion in lines and equipment.
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Defluoridation: Removal of fluoride from household and community drinking water.
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Catalyst support: The largest application area. Noble metals such as platinum and palladium, or active components like oxides of cobalt, molybdenum, and nickel, are dispersed on activated alumina to provide a large effective surface, boosting catalytic efficiency.
Shanghai Jiuzhou is a high-tech producer of activated alumina and participated in drafting the national industry standard Industrial Activated Alumina. The company develops and manufactures a wide range of activated alumina products with excellent performance and broad applicability, playing an indispensable role especially in adsorption, catalysis, and water treatment.
Post time: Sep-15-2025