Alumina PSA nitrogen is separated by van der Waals forces of oxygen and nitrogen, and therefore the larger the specific surface area of ??the alumina, more uniform pore size distribution and pore or more sub-micropores greater number of adsorption, when alumina The pores are clogged water or oily substances, the adsorption capacity of the alumina is greatly reduced, which is aluminum poisoning. Alumina Precautions 1. Early treatment is not equipped with air purification equipment, resulting in oil, water impurity in the air directly into the adsorption capacity of the alumina adsorption column is caused by poisoning, analytical ability severely impaired adsorption declined significantly. 2. alumina reaches a certain age, the adsorption capacity decreased, we can not guarantee the application requirements. Encountered such a situation, you have to consider replacing the alumina. Shipping and Handling: Activated Alumina ball in the transport process, should prevent mixed with the hard material, non-throwing, stampede, during transport to avoid the rain affect use.