... the deep adsorption of gas and liquid such as air, natural gas, ene, refrigerant, etc. Product name: Molecular sieves 4A Application ... used for adsorption of water, methanol, ethanol, hydrogen sulfide, sulfur dioxide, carbon dioxide, ethylene, propylene, and etc. 2)It is considered as one ... the deep adsorption of gas and liquid such as air, natural gas, ene, refrigerant, etc. 3) it is used for ...