The pore size for 13X molecular sieve is about 10A. It can adsorb any molecular smaller than 10A, mainly used as catalyze carrier, coadsorption of CO2 and H2O and H2O, H2O and H2S, as desiccant for medical and air compressor systems, and can also be adjusted to fit other various applications. Typical applications 　　 Purification and removal of H2O and CO2 　　 Dehydration and desulfuration of nature gas, liquid petro gas and liquid alkane 　　 Deep dry of common gases