Confirm the Dryer Type: Before selecting new activated alumina, first confirm which regeneration method the dryer uses. Common adsorption dryers include heatless regenerative dryers, heated regenerative dryers, and other types of regenerative drying equipment. Different regeneration methods have different working conditions for adsorbents. For example, heatless regenerative dryers usually use part of the dried gas […]
The core function of activated alumina is to adsorb water vapor. When wet compressed air enters an adsorption tower filled with activated alumina, water molecules come into contact with the surface of the activated alumina particles and are adsorbed by its porous structure and surface active sites. As the wet air continuously passes through the […]
The Quality of Activated Alumina Itself: Activated alumina used in air separation units needs to maintain good particle integrity during long-term airflow flushing and periodic regeneration. If the mechanical strength of the particles is low, they are prone to breakage during loading and operation, forming more and more fine powder. These dust particles not only […]
Many customers ask a question when selecting activated alumina: Is smaller particle size of activated alumina for air separation equipment better? Under certain conditions, smaller activated alumina particles can indeed shorten the mass transfer distance for moisture entering the particles and help improve the mass transfer rate. However, for air separation equipment and fixed-bed adsorption […]
Why Does Activated Alumina Produce Dust? Activated alumina is usually loaded into the adsorption bed in the form of spherical particles. During transportation, loading and unloading, and equipment operation, collisions and friction may occur between the particles. If the mechanical strength of the activated alumina is insufficient, or if the particles themselves contain a large […]
Activated alumina is usually filled in the adsorption bed in spherical or approximately spherical particles. When compressed air or feed air passes through the adsorbent bed, the moisture in the air comes into contact with the activated alumina particles and is adsorbed by the pores. Particle size will directly affect the flow state of the […]
Why Is Potassium Permanganate Activated Alumina Affected by Humidity? When the moisture in the gas increases, water molecules also interact with the surface and pores of activated alumina. If the humidity is at a relatively high level, water may occupy part of the surface and pore space, causing changes in the ability of target pollutants […]
Spherical particles have a relatively regular shape and, with relatively uniform particle sizes, are more likely to form a stable adsorbent bed. For potassium permanganate activated alumina, this is particularly important because its actual performance depends not only on the chemical properties of the material itself, but is also closely related to the residence time […]
How Does Activated Carbon Remove Odors? Activated carbon has a developed pore structure and a large specific surface area, and can capture various pollutants in the air through physical adsorption. When air containing odor gases passes through the activated carbon bed, some pollutants enter the pores inside the activated carbon and are adsorbed on its […]
Potassium permanganate is an important active component in potassium permanganate activated alumina. For certain reducing pollutants and odorous gases, potassium permanganate can exert an oxidizing effect. Therefore, a reasonable potassium permanganate loading is very important for the purification performance of the material. When the potassium permanganate content is relatively low, the active components that can […]