mSORB 3A-NG is a potassium type A zeolite bead, Interra Global's natural gas grade of 3A molecular sieve. Exchanging potassium into the framework narrows the pore opening to a nominal 3 angstroms, which admits water while limiting the uptake of carbon dioxide, hydrogen sulfide, and ethane and heavier hydrocarbons. The grade is formulated for natural gas dehydration where the formation of carbonyl sulfide (COS) must be minimized, and the beads combine high mass transfer efficiency with the durability to hold up through repeated adsorption and regeneration cycles. The data sheet states the maximum heating temperature for regeneration. It is the selective grade of Interra Global's two natural gas molecular sieves; mSORB 4A-NG is the high-capacity grade, usually chosen where the gas has already been treated for acid gas, and the natural gas dehydration page sets out the choice between them.
Chemical Formula: K₁₂[(AlO₂)₁₂(SiO₂)₁₂]·nH₂O
TYPICAL APPLICATIONS
Where a 3A molecular sieve is preferred, mSORB 3A-NG is typically used for:
- Dehydrating natural gas ahead of NGL recovery, where ethane and heavier hydrocarbons would otherwise be co-adsorbed
- Dehydrating natural gas ahead of LNG production, where a 3A grade is recommended for the service
- Drying saturated and unsaturated hydrocarbon streams
SIZES AND PACKAGING
- 4x8 mesh beads, product code 3A48B-NG
- 8x12 mesh beads, product code 3A812B-NG
Supplied in 330 lb (150 kg) steel drums and in super sacks. The bead size suited to a unit depends on its design, and Interra Global's technical staff can advise on the selection for a given unit. Other bead sizes and packaging are quoted on request.