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FRP Absorption Towers

The FRP absorption tower is the core vessel of a wet FGD scrubber. Here, exhaust gas rises through the tower and contacts the scrubbing liquid (often sprayed or packed), absorbing pollutants. FRP towers are fiberglass-reinforced plastic columns built to resist the corrosive environment of flue gas desulfurization. They may contain internals like packing, trays or bubble headers to maximize gas-liquid contact. FRP’s structural strength allows towers to be very tall and wide with thin walls, optimizing space and flow. These towers often have FRP flanges, manways and access platforms integrated into the design.

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Key Features

Robust FRP shell (vinyl ester, epoxy or phenolic) with corrosion barrier.
Large custom dimensions (diameter, height) for high gas flow.
Support for internals: packing, trays, spray zones.
Weather-protective exterior coatings (UV-resistant gelcoat).

Benefits

Corrosion Durability: FRP withstands acidic flue gas and slurry contact longer than steel. This translates to decades of reliable operation.
Lightweight Installation: Tower sections can be flanged/jointed quickly on-site. Reduced foundation size needed.
Safety and Maintenance: Smooth interior eases cleaning; no need for costly interior linings or repainting.

Applications

Used as primary scrubber towers in coal, oil and waste-to-energy plants. FRP towers are also applied in chemical and mining facilities for gas absorption tasks. Wherever SO₂ or acidic gases must be removed from large-volume streams, FRP absorption towers offer a robust solution.

Technical Specifications

Construction: Filament-wound or hand-lay FRP with heavy Laminate for pressure and wind.
Dimensions: Can exceed 10m diameter or 30m height (modular sections).
Standards: Built to API, ASME and project-specific standards for pressure, seismic, and wind.

Unique Selling Points

Our FRP towers feature engineered laminate schedules for optimum performance: e.g. dual-color laminates with 100+ mil corrosion liners for severe service. We also supply matched FRP internals (packing, bubble caps) and external FRP stacks to complete the system.