Adsorption types of molecular sieves

Adsorption types of molecular sieves

3A molecular sieve hardly adsorbs mercaptans;

4A molecular sieves have a small adsorption capacity for mercaptans;

5A molecular sieves and 13X molecular sieves have relatively strong adsorption capacities for mercaptans. Mercaptan>H2S; the suitable regeneration temperature range of 13X molecular sieve adsorbing methyl mercaptan is 200-250℃, and the suitable regeneration temperature range of 13X molecular sieve adsorbing ethanethiol is 250-300℃, and the order of regeneration from difficult to easy is :H2S>ethanethiol>methylmercaptan.

13X molecular sieve has a pore size of 10A and can adsorb molecules smaller than 10A. It can be used for catalyst carrier, co-adsorption of water and carbon dioxide, co-adsorption of water and hydrogen sulfide gas. It is mainly used in the drying of medicine and air compression systems. It has different specialties according to different applications. Variety.

13X-APG (molecular sieve for air separation) is a special molecular sieve produced to meet the special requirements of the cryogenic air separation industry, to further improve the adsorption capacity of molecular sieves for carbon dioxide and water, and to avoid freezing towers in the process of air separation rectification. Products are suitable for cryogenic air separation units of all sizes.

Molecular formula: Na2O.Al2O32.45SiO2.6.OH2O