Product Overview
The YFEP PP/PPH packed bed wet scrubber is a modular gas-liquid absorption unit designed for the removal of acid gases, alkaline mist, and water-soluble odorous compounds. It is widely used in chemical, pharmaceutical, electroplating, food processing, and wastewater treatment facilities where corrosive exhaust streams require a reliable and cost-effective treatment stage.
Constructed with polypropylene (PP) or PPH shells and high-efficiency packing media, the scrubber operates on counter-current absorption principles. Pollutant-laden gas flows upward through the packed bed while scrubbing liquid is evenly distributed from the top. This maximizes gas-liquid contact area, enhances mass transfer, and ensures stable removal efficiency across varying load conditions.
Important technical note: Packed bed wet scrubbers are highly effective for acid gases, alkaline mist, and water-soluble pollutants. For volatile organic compounds (VOCs), wet scrubbers generally serve as a pre-treatment or co-treatment step rather than a standalone solution for final compliance.
Key Features
- Corrosion-resistant PP/PPH shell suitable for acid, alkaline, and humid exhaust streams
- High-efficiency packed bed design for stable mass transfer and low pressure drop
- Modular skid-mounted or field-erected configurations available
- Integrated spray distribution system with anti-clogging nozzles
- Optional demister / mist eliminator to reduce liquid carry-over
- Customizable packing height, diameter, and liquid circulation rate
- Low operating and maintenance cost compared with metallic scrubbers
Working Principle
Contaminated exhaust gas enters the lower section of the scrubber and flows upward through the packing bed. Scrubbing liquid is distributed evenly across the top of the packing and flows downward by gravity. The counter-current contact between gas and liquid absorbs acid gases, neutralizes alkaline mist, and captures water-soluble pollutants. Treated gas passes through a mist eliminator before discharge, while the spent liquid is collected in the recirculation tank for neutralization, make-up, or treatment.
Industrial Applications
- Chemical and petrochemical process exhaust
- Pharmaceutical synthesis and drying off-gas
- Electroplating and surface treatment acid mist
- Food and beverage odor control
- Wastewater treatment plant odor pre-treatment
- Electronics and semiconductor wet process exhaust
Technical Specifications
| Item | Parameter / Range |
| Shell material | PP / PPH (customizable) |
| Airflow range | [Customizable] Nm³/h |
| Target pollutants | Acid gases, alkaline mist, water-soluble odors |
| Removal efficiency | [Customizable] % (depends on pollutant and liquid chemistry) |
| L/G ratio | [Customizable] L/m³ |
| Packing type | Random / structured (PP/PPH, optional) |
| Operating temperature | [Customizable] °C |
| Pressure drop | [Customizable] Pa |
| Configuration | Single tower / multi-stage / integrated with recirculation tank |
Why Choose YFEP
- Engineering team with experience in corrosive exhaust systems
- Customized tower diameter, packing height, and nozzle layout
- Stable packing media and corrosion-resistant internal hardware
- Process support from pilot testing to full-scale installation
- Compact layout for retrofit and greenfield projects
Payment, Delivery & After-Sales
- Payment terms: T/T, L/C (negotiable)
- Delivery time: [Customizable] days after deposit, depending on configuration
- Packaging: seaworthy plywood or steel frame
- After-sales: installation guidance, commissioning support, spare parts supply
- Warranty: [Customizable] months from commissioning
