13X molecular sieve is a special product which is produced to meet the special requirements of air separation industry. It further enhances the adsorption capacity for carbon dioxide and water, and also avoids tower frozen during air separation process. It also can be used for oxygen-making 13X type molecular sieve, also known as sodium X type molecular sieve, is an alkali metal aluminosilicate, which has a certain basicity and belongs to a class of solid bases. 3.64A is less than 10A for any molecule. The pore size of 13X molecular sieve is 10A, and the adsorption is greater than 3.64A and less than 10A. It can be used for catalyst co-carrier, co-adsorption of water and carbon dioxide, co-adsorption of water and hydrogen sulfide gas, mainly used for drying of medicine and air compression system. There are different professional varieties of applications.