Caustic scrubber mist eliminators can foul because absorbed gases react with alkaline liquid to form dissolved salts that later concentrate or crystallize inside the separator. Material compatibility, salt chemistry, open geometry, drainage, washing, and DP monitoring should be evaluated together.

Marine and seawater scrubber mist eliminators must address chloride corrosion, salt crystallization, suspended solids, gas-load variation, vessel motion, support stability, wash systems, and restricted maintenance access. Long-term cleanability and mechanical stability are as important as initial droplet removal.

Mist eliminators upstream of compressors protect equipment from liquid ingestion, so outlet carryover, upset loading, level control, downstream condensation, and pressure drop are more important than a generic efficiency percentage. Bulk liquid and fine mist may require different separation stages.

Amine and glycol mist eliminators can be affected by foaming, hydrocarbon contamination, solids, degradation products, and changing wetting behavior. Separator selection should therefore consider solvent cleanliness and operating history—not only gas velocity and vessel diameter.

Chloride-rich scrubber mist eliminators must manage both corrosion and salt deposition. Material selection, separator openness, drainage, wash-water quality, cleaning access, and pressure-drop monitoring should all be considered together.