Molecular sieve is a kind of silico-aluminate, mainly composed of silicon and aluminum through oxygen bridge to form a wide skeleton structure, in the structure there are many uniform pore size and regular, large internal surface area of the hole. In addition, it also contains metal ions with low electric price and large ionic radius and combined water. Because the water molecules are successively lost after heating, but the crystal skeleton structure is unchanged, many cavities of the same size and size are formed, and the cavities are connected with many micropores of the same diameter, and the material molecules smaller than the diameter of the pores are adsorbed inside the cavity, and the molecules larger than the pores are excluded, so that the molecules of different sizes and shapes are separated until the effect of screening molecules. Hence the name molecular sieve. It is mainly used for the deep boring of various gases and liquids, the separation and purification of gases and liquids, catalyst carriers, etc., so it is widely used in oil refining, petrochemical, chemical industry, metallurgy, electronics, national defense industry, etc., together in medicine, light industry, agriculture, environmental protection and many other aspects, but also increasingly widely used.

3A molecular sieve:

It is mainly used for the boring of petroleum cracking gas, olefin, gas refining plant, oil field gas, and is a boring agent for chemical industry, medicine, insulating glass and other industries.

Chemical formula: 2/3K2O·1/3Na22O·AI2O3·2SiO2·.9/2H2O

Primary use: 1, liquid (such as ethanol) boring

2, the air in the hollow glass is boring

3. The boredom of nitrogen and hydrogen gas mixture

4. The boredom of refrigerant

4A molecular sieve:

Mainly used for natural gas and various chemical gases and liquids, refrigerants, pharmaceuticals, electronic materials and volatile substances dry, argon purification, methane, ethane propane separation.

Chemical formula: Na2O·Al2O3·2SiO2·9/2H2O

Primary uses: 1, air, natural gas, hydrocarbon complete alkanes, refrigerants and other gases and liquids deep dry;

2, argon preparation and purification;

3, static boring of electronic components and materials susceptible to moisture deterioration;

4, paint, polyester, dye, paint as dehydrating agent.

5A molecular sieve:

Chemical formula: 3/4CaO·1/4Na2O·Al2O3·2SiO2·9/2H2O

Primary uses: 1, natural gas dry, desulfurization, carbon dioxide removal;

2, nitrogen and oxygen separation, nitrogen and hydrogen separation, to produce oxygen, nitrogen and hydrogen;

3. Petroleum dewaxing, separation of normal hydrocarbon from branched hydrocarbon and cyclic hydrocarbon.

(renewable)

13XAPG molecular sieve:

Mainly used for large and medium-sized air separation equipment material gas purification.

Insulating glass special molecular sieve series:

It can absorb the moisture and residual organic matter in the insulating glass together, so that the insulating glass still insists on smooth and transparent even at a very low temperature, and fully reduces the strong pressure difference accepted by the insulating glass because of the temperature difference between the seasons and the day and night, completely solving the distortion and breakage problem that usually the insulating glass is easy to make the insulating glass expand or contract. Fully extend the service life of insulating glass.

Molecular sieve activated powder series:

Molecular sieve is the molecular sieve after dehydration of the original component. It has certain dispersibility and rapid adsorption rate. It is mainly used as additives for coatings, paints, resins and related adhesives.

Regeneration of molecular sieve

In order to obtain good operating function and long life, molecular sieve is necessary to regenerate after a certain time. The correctly regenerated molecular sieves are the same as the fresh ones, and the decay and aging of adsorption and mechanical functions are very low. There are two fundamental ways to regenerate molecular sieve:

1) Change the temperature, that is, "change the temperature". It is heated by molecular sieve to remove adsorbed material. In industry, it is usually heated with preheated regas, which purges the molecular sieve to 200 meters and carries away the desorbed adsorbent.

2) Change the relative pressure, that is, "transformer". It is commonly used in gas phase adsorption processes. The fundamental method is to adhere to the same temperature of the adsorbent, after falling pressure and inert gas blowback, remove the adsorbent. Regeneration is usually carried out in reverse with adsorption, which can make the large adsorbent contained at the entrance of the adsorption bed do not have to pass through the entire bed, and some molecular sieves do not touch the hot and humid gas, thereby improving the service life of the molecular sieves. Then the gas should be as dry as possible, otherwise it will affect the adsorption power.