What is molecular sieve 3A?

What is molecular sieve 3A?

The 3A molecular sieve is an alkali metal aluminosilicate with a pore opening of approximately 3 angstroms. Type 3A is made by ion-exchanging the sodium in the type 4A sieve with potassium. The 3A molecular sieve will exclude most molecules except water, making it very selective.

What is 3A zeolite?

Molecular sieve 3A, also called zeolite 3A or zeolith 3A, is one type of aluminosilicate crystal with average pores measuring of 3 angstrom (0.3 nm). Our 3A molecular sieves are usually used for ethanol dehydration, natual gas dehydration, cracked gas dehydration and refrigerant dehydration.

What are molecular sieve materials?

Molecular sieves are synthetic zeolite materials engineered with pores of precise and uniform structure and size. This allows them to preferentially adsorb gases and liquids based on molecular size and polarity.

What is zeolite formula?

Zeolites are microporous, three dimensional crystalline solid of aluminium silicate. The chemical formula of zeolites is Na2Al2Si2O8. xH2O.

What is the price of zeolite?

Zeolite Powder at Rs 5/kg | Zeolite Powder | ID: 12989183888.

Why do we use molecular sieves?

Molecular sieves are used for drying gases and liquids and for separating molecules on the basis of their sizes and shapes. When two molecules are equally small and can enter the pores, separation is based on the polarity (charge separation) of the molecule, the more polar molecule being preferentially adsorbed.

Do molecular sieves come activated?

They can be activated by passing hot dry gas through them. Usually the boiling point of water is sufficient if the gas is supplied very dry like distilled argon or nitrogen for most purposes and distilled neon or helium for extreme cases. A molecular sieve is a material with pores (very small holes) of uniform size.

How big is a 3A molecular sieve Crystal?

The beads exhibit high mass transfer efficiency, high crush strength and durability. mSORB® 3A molecular sieve beads are the potassium form of the Type A crystal structure with a pore opening of approximately 3 Angstroms in diameter.

What kind of material is a molecular sieve?

Molecular sieves are synthetic zeolite materials engineered with pores of precise and uniform structure and size. This allows them to preferentially adsorb gases and liquids based on molecular size and polarity. Zeolites are naturally existing, highly porous crystalline solids, belonging to the class of chemicals known as aluminosilicates.

How are the pores of a molecular sieve determined?

The type is dependent on the molecule’s chemical formula, and it determines the pore size of the molecular sieve. A molecular sieve works by adsorbing gas or liquid molecules that are smaller than the effective diameter of its pores, while excluding those molecules that are larger than the openings.

Why do you need a molecular sieve for ethanol?

For ethanol to be considered fuel grade, it has to be greater than 99% dehydrated. To achieve this level of purity, a 3A molecular sieve, designed specifically with 3 Angstrom-sized pores, is used to adsorb the water molecules, while the larger ethanol molecules are excluded.