Activated alumina and molecular sieves are the most commonly used adsorbent. Both water vapor adsorbent has a strong adsorption capacity. Activated alumina also have a number of excellent overall physical and chemical properties of activated alumina, so in most cases is the preferred polar adsorption dryer. Especially in the absence of thermal regeneration, activated alumina almost get compressed air pressure dew point -40 ℃ about course selection. However, the adsorption capacity of the adsorbent at low moisture environment far less sieve, so in a very dry air (pressure dew point below -60 ℃) will come in handy when you get sieve. However, mechanical strength and resistance to molecular sieve droplets performance is far from ideal, and therefore it is often combined with the use of an alumina together to obtain the best results. Regardless of the occasion for all the selected molecular sieve desiccant adsorption is not it a good policy. Activated alumina is a desiccant to absorb moisture from the atmosphere water scavenger, its principle is activated alumina drying physically adsorbed water molecules in their structure or chemically absorb water molecules and changing their chemical structure Activated alumina specifications into another substance. Common activated alumina desiccant chemically adsorbed magnesium chloride, calcium chloride, phosphorus pentoxide or soda lime, silicic acid and other active alumina price, he is absorbed by water molecules and chemically alter its chemical structure, into another substances. Common physical adsorption desiccant silica gel desiccant, clay desiccant, molecular sieve desiccant, desiccant mineral fiber desiccant. Activated alumina desiccant application: 1, air drying: Warehouse, cabin, pharmaceutical, precision machinery, electronic equipment factory, compressed air, instrument air dry. 2, industrial gas dehydration purification: hydrogen, oxygen, nitrogen, chlorine, CO2, acetylene, ethylene, methane, ethane, propane, SO3, SO2, natural gas, coal gas. Activated alumina quality indicators quality indicators in line HG / T2765-2005 units adsorption capacity: adsorption capacity RH = 20% ≥10% RH = 40% when ≥20% RH = 90% ≥30% Note: Press GB10455-89 standard : In RH = 90% when qualified first grade ≥29% ≥28% ≥30% Packing Excellence for common specifications: 1g, 2g, 3g, 5g activated alumina molecular sieve, 10g, 20g, 30g packaging materials: composite paper , non-woven, non-woven composite, DuPont paper, OPP film activated alumina fluoride removal agent, activated alumina factory (certified), Chaohu activated alumina supplied by water purification materials Co., Ltd., Henan Golden Age. Henan Spirit Water Material Co. (www.gyssjs.com) is a leader in Zhengzhou, water treatment chemicals, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the Golden Age of water purification leadership with the staff warmly welcome all inquiries negotiations to create a better future prosperity water.