Molecular Sieves have different types 3A, 4A, 5A, and 13X having different applications. It can be used for various processes where removal of moisture, gases, and other contaminants is required. These molecular sieves also used in drying of unsaturated hydrocarbons (e.g. ethylene, propylene, butadiene), cracked gas drying, drying of natural gas, drying of liquid alcohol, drying of CNG. Molecular sieves used for drying of highly polar compounds like methanol and ethanol. Static ( non regenerative ) dehydration of insulating glass units whether air filled or gas filled.