Molecular sieve manufacturer talks about the application of molecular sieve in air purification

At present, the air purifiers used in domestic air separation plants are divided into vertical and horizontal types according to the placement method, and there are two types of single-layer beds and bunk beds in structure. The advantage of the vertical air purifier is that it occupies a small area, while the horizontal air purifier has a relatively simple structure, but it occupies a large area and is limited in use. The adsorbent used in the single bed is molecular sieve, which is responsible for the adsorption of harmful components such as moisture, carbon dioxide and hydrocarbons. Next, the molecular sieve manufacturer will talk about the applications of molecular sieves in air purification:

(1) Alumina can adsorb acidic components in the air (such as SO2, NO2, HCl, etc.), and these acidic components are harmful to the molecular sieve, because it will generate acid with the water absorbed by the molecular sieve and destroy the molecular sieve. That is, the molecular sieve is poisoned, thereby damaging the performance of the molecular sieve. After the double bed is used, alumina is used to absorb moisture in advance, which has a good protective effect on the molecular sieve and prolongs the service life of the molecular sieve.

(2) Molecular sieve has a stronger affinity for water than alumina, so more energy is consumed during desorption; the use of alumina to remove water can reduce energy consumption for regeneration.

(3) Replacing the molecular sieve required for adsorbing water with alumina can save costs, because the price of alumina is much cheaper than that of molecular sieve. In the air with a relative humidity of 100% (ie saturated), activated alumina has excellent hygroscopic performance. For molecular sieves, the moisture in the saturated air is absorbed by alumina in the lower layer of the adsorption bed, and after the moisture concentration at the alumina is reduced, the upper molecular sieve is used for deep adsorption.