Product Description

3A Molecular Sieve is an alkali metal alumino-silicate; it is the potassium form of the type A crystal structure. Type 3A has an effective pore opening of about 3 angstroms (0.3nm). This is large enough to allow in moisture, but excludes molecules such as unsaturated hydrocarbons which can potentially form polymers; And this maximises lifetime when dehydrating such molecules. Typical Chemical Formula 0.*5 K2O. 0.*5 Na2O. Al2O3.2 SiO2.4.5H2O SiO2: Al2O3 ≈ 2 Typical Application 1) Drying of unsaturated hydrocarbons (e. g. ethylene, propylene, butadien) 2) Cracked Gas Drying 3) Drying of natural gas, if COS minimization is essential, or a minimum coadsorption of hydrocarbons is required. 4) Drying of highly polar compounds, such as methanol and ethanol 5) Drying of liquid alcohol 6) Static, (non-regenerative) dehydration of insulating glass units, whether air filled or gas-filled. 7) Drying of refrigerants Regeneration XINTAO molecular sieve Type 3A can be regenerated by either 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 3A molecular sieve, a temperature of ******0° C is required. A properly regenerated molecular sieve can give moisture dew points below ***0° C. The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process. Size 3A - Zeolites are available in beads of **2 mm, (*0x*8 mesh) **3 mm, (8x*2 mesh), 2.**5 mm, (4x8 mesh) and as powder, and in pellet 1.6", 3.2". Attention To avoid damp and pre-adsorption of organic before running, or must to be reactivated.