Molecular Sieve 13X is made from zeolite powder 13X (>70%) and binder. Molecular sieve 13X is can adsorb aromatics and branched-chain hydrocarbons. Molecular sieve 13X is commonly used in removal of mercaptans, removal of CO2 in cryogenic air separation, etc.
Molecular Sieve 13X is a multiple purpose, highly porous, high capacity alkali metal alumino-silicate in the spherical form. It is the sodium form of the Type X crystal structure with pore diameters of approximately 10Å. It can adsorb all molecules that can be adsorbed by 3A, 4A, and 5A molecular sieve. Type 13X molecular sieve can also adsorb molecules such as aromatics and branched-chain hydrocarbons, which have large critical diameters.
Synonym: Zeolite 13X, Molsive 13X, 13X molecular sieve, 13X-APG
Typical Chemical Formula: Na86[(AlO2)86(SiO2)106].nH2O
CAS NO.: 1318-02-1
Silica-alumina ratio: SiO2/ Al2O3≈2.4
1. Molecular sieve 13X is used in removal of CO2 and moisture from air (air pre-purification) and other gases
2. Molecular sieve 13X is used in separation of enriched oxygen from air
3. Molecular sieve 13X is used in removal of mercaptans and hydrpogen sulphide from hydrocarbon liquid streams such as LPG, butane, propane etc
4. Molecular sieve 13X is used in removal of n-chained compositions from aromatics
Molecular sieve 13X can be regenerated either thermal regeneration method(Thermal Swing Adsorption, TSA); To remove moisture from a 13X molecular sieve, a temperature of 200-230℃ (390-570°F) is required. Molecular sieve 13X can also be regnerated by lowering the pressure in the case of pressure swing processes (PSA). A properly regenerated molecular sieve can give moisture dew points below -100℃. The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process.