Usage of 5A Molecular Sieve, the dehydration operation of 5A molecular sieve is relatively simple, and the molecular sieve can be directly put into the solvent removal, or the solution and gas can be directly passed through the molecular sieve adsorption tower. Molecular sieves have selective adsorption capacity and can remove water from organic solvents and gases, but do not adsorb solvents and gases (such as tetrahydrofuran). The original method uses caustic soda for dehydration, which is easily soluble in water, and is not easy to separate from tetrahydrofuran after dehydration, and it is not easy to recycle after using caustic soda, which increases the cost.
Using water vapor as a desorption agent to deactivate the molecular sieve n-alkanes, the 5A molecular sieve can remove some polar pollutants and restore the working activity of the molecular sieve after low temperature and warm water heat treatment; during the regeneration process, the cations within the crystalline structure of the molecular sieve shift , And then open after low temperature heat treatment to increase the life of the molecular sieve.
When using 5A molecular sieve, oil and liquid water should not be used, and direct contact with oil and liquid water should be avoided as much as possible.
As a kind of alkali metal aluminosilicate, 5A molecular sieve is favored by customers in the drying of gas and liquid. It can also be used for the refining and purification of gas and liquid, such as the extraction of H2.
Post time: Mar-21-2022