ZEOCHEM® Molecular Sieves 13X

Outlines

ZEOCHEM® Molecular Sieve 13X is the sodium form of the type X crystal and has a larger pore opening than the type A crystals. It will adsorb molecules with a kinetic diameter of less than 9 Angstrom (0.9 nm) and exclude those larger.

There are many aplications for this product. It has the highest theoretical capacity of the common adsorbents and very good mass transfer rates. It can remove impurities too large to fit into A-type crystals.

Typical Chemical Formula

Na₂O . Al₂O₃ . 2.5 SiO₂ . n H₂O

Application

• Removal of CO2 and moisture from air (air pre-purification) and other gases with Z10-02 and Z10-02ND for longer CO2 break through time
• Separation of enriched oxygen from air, production of medical oxygen in small scale medical oxygen concentrators.
• Removal of mercaptans and hydrogen sulphide from natural gas using patented Zeochem technology
• Removal of mercaptans and hydrpogen sulphide from hydrocarbon liquid streams (LPG, butane, propane etc.) with Z10-01
• Catalyst protection, removal of oxygenates from hydrocarbons (olefin streams) with Z10-03
• Removal of n-chained organics from aromatics with Z10-03
• Production of bulk oxygen in PSA units
• Special lithium grades are available, such as LiLSX type: Z10-05-03 and Z12-07 for applications in both, small scale medical oxygen concentrators and VPSA bulk production units
• ZEOX OII for even faster adsorption and higher adsorption capacity for Medical Oxygen concentrators
  

Regeneration

ZEOCHEM® molecular sieve Type 13X can be regenerated either by heating in the case of thermal swing processes or by lowering the pressure in the case of pressure swing processes.

To remove moisture from a 13X molecular sieve, a temperature of 240-300°C is required.

CO2 may be regenerated at 180 - 200°C. For other compounds ask Zeochem.

A properly regenerated molecular sieve can give moisture dew points below -100°C, or mercaptan or CO2 levels below 2 ppmv.

The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process

13X - zeolites are available in beads.

Please ask for separate data sheets.