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FRP Mist Eliminators

FRP mist eliminators (demisters) are compact fiberglass assemblies placed in scrubbers and air pollution control units to remove liquid droplets from gas streams. Commonly made as chevron (V-shaped) vane packs or knitted-fiber mesh pads, they capture entrained water or chemicals (such as acid mists) with very high efficiency. The FRP material (glass-fiber in a corrosion-resistant resin) endures aggressive gases and cleaning liquids without degradation. These demisters are designed for minimal pressure drop, often achieving droplet removal efficiencies approaching 100%.

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Key Features

  • High Efficiency: Removes fine mist and aerosols (>99% droplet capture).
  • Corrosion-Resistant FRP: Ideal for acid gas scrubbers and harsh environments.
  • Low Pressure Drop: Engineered vane geometry or mesh to minimize energy loss.
  • Modular Design: Packable sections that fit any scrubber cross-section.
  • Easy Maintenance: Fiberglass doesn’t swell or corrode; mesh pads can be washed.

Benefits

  • Protects Downstream: Prevents corrosive or toxic droplets from damaging fans, ducts or emitting into the air.
  • Improves Performance: Keeps scrubber packing dry, maintaining high gas-liquid contact efficiency.
  • Long Service Life: FRP withstands continual wetting and chemical exposure far better than metal.
  • Cost Savings: Less frequent replacement than metal demisters in corrosive service.

Applications

  • Wet Scrubbers: Final stage mist eliminators in gas scrubbers (acid gas, ammonia, chlorine, etc.).
  • Cooling Towers: Drift eliminators (similar function) in FRP cooling tower pack.
  • Chemical Reactors: Emissions treatment to capture solvent or acid mists.
  • Odor Control: In wastewater headworks (removing odorous aerosols).

Technical Specifications

  • Configurations: Chevron (thin sheet vanes) or mesh (woven/vinyl pads).
  • Materials: FRP for frames; internals often PP or similar, supported by FRP.
  • Efficiency: ≥98% removal at design velocity (achievable by design).
  • Pressure Drop: Typically 20–80 Pa (depending on velocity and style).

Unique Selling Points

  • Maximum Removal: Designs that “ensure mist removal efficiencies often approaching 100%”.
  • FRP Durability: Unlike plastic mesh, FRP vanes are mechanically robust.
  • Chemical Resistance: Tolerates bleach, acids or alkalis common in treatment exhaust.
  • Lightweight Packs: Easy to retrofit into existing systems for upgrades.