RP molecular sieve 3A

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RP Molecular Sieve 3A 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.

 

 

Spcification
Property	Unit	Value
Bead Size	mm	1.7-2.5	3.0-5.0
Size qualification	%	≥96	≥96
Bulk Density	g/ml	≥0.68	≥0.68
Wear Ratio	%	≤0.10	≤0.10
Crush Strength	N	≥30	≥70
Equilibrium Water Capacity @ 25°C	%	≥20	≥20
Ethylene adsorption	%	≤3.0	≤3.0
Package Moisture	%	≤1.5	≤1.5

 

 

TYPICAL APPLICATION

 

n Ethanol Drying

n Methanol Drying

n Ethylene Drying

n Butadiene Drying

n Static Dehydration of Gas

n Static Dehydration of Air Filled Insulated Glass Units

n Gas Drying

n Cracked Gas Drying

n Drying of liquid alcohol

n Drying of refrigerants

REGENERATION

 

RP 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 200-230°C is required. A properly regenerated molecular sieve can give moisture dew points below -100°C. The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process.

 

 

HANDLING & STORAGE RECOMMENDATIONS

 

Store RP molecular sieve in a dry location to prevent premature water adsorption. Reseal packages after opening to prevent contamination and unintended water adsorption. We recommend that you rotate stock so oldest material is used first.

RP molecular sieve 3A