Wet scrubbing for So2 removal in industrial applications

Effectively eliminate sulfur oxides from flue gases using advanced wet scrubbing technology, ensuring cleaner emissions and transforming pollutants into valuable gypsum for construction materials.

Removes SO2 and Produces Gypsum

The Limestone Wet Scrubbing System offers a robust solution for sulfur dioxide (SO2) removal from industrial flue gases. By employing a limestone-based wet flue gas desulphurization (FGD) process, this system is particularly effective for large-scale applications in cement plants, power stations, and metal smelters. Its scrubbing mechanism operates through a counter-current flow in a spray tower, facilitating the absorption of SO2 and subsequent production of gypsum, a byproduct that can be used in cement manufacturing and plasterboard production.

The system is versatile, accommodating various materials such as stainless steel and rubber-lined carbon steel, ensuring durability and resistance to corrosive elements. It integrates seamlessly into existing operational lines and is adaptable for both small and large volumes of flue gas.

With continuous operation and manual control, the system maximizes efficiency, featuring adjustable parameters to maintain optimal SOx removal even under varying dust and contaminant levels. Furthermore, it includes a reliable dewatering system that minimizes gypsum moisture content to approximately 10%, ensuring easy handling and disposal. This equipment not only enhances environmental compliance for industrial facilities but also contributes to sustainable production practices by transforming waste into valuable resources.

Benefits

  • Achieves high SO2 removal efficiency, ensuring compliance with stringent environmental regulations.
  • Converts harmful emissions into gypsum, providing an additional revenue stream for the building materials industry.
  • Operates continuously with minimal manual intervention, reducing labor and maintenance costs.
  • Suitable for a variety of industrial applications, enhancing operational flexibility.
  • Designed for durability and resistance in corrosive environments, extending equipment lifespan.

General


Applications
Building materials industry,Power plants,Metal smelters,Cement
End products
Clean flue gas,De-sulfurized cement,Gypsum,Plasterboards
Steps before
Flue gas generation,Sorbent preparation,Limestone slurry preparation,Hydrated lime slurry preparation
Steps after
Dewatering,Gypsum collection,Emission monitoring,Particulate matter filtering
Input ingredients
SOx,SO2,SO3,H2S,halogens,F2,Cl2,Br2,I2,hydrated lime,limestone,caustic soda,flue gas,water vapor
Output ingredients
gypsum,calcium sulfite,sodium sulfate,dewatered sludge
Market info
GEA is known for its expertise in engineering innovative and sustainable equipment and solutions, focusing on sectors such as food, beverages, pharmaceuticals, and energy, with a reputation for quality, efficiency, and advanced technological applications in industrial processing.

Technical Specifications


SOx removal efficiency
Excellent
Scrubber type
Venturi,Limestone,Packed column,Caustic soda
Reaction product
Gypsum (CaSO4)
Operation mode
Counter-current flow
Material of construction
Stainless steel,FRP,Rubber-lined/Coated carbon steel
Corrosive resistance
High resistance to acids
Automation
High reliability
Pressure drop
Low (for Packed column scrubbers)
Sorbents used
Limestone,Hydrated lime,Caustic soda
Byproduct moisture content
10% (In gypsum)
Caustic soda installation
Limited to smaller installations
Gas flow adaptability
Adjustable (for Venturi scrubbers)
Pollutants handled
SO2,SO3,H2S,Halogens

Operating Characteristics


Desulphurization Process
Wet scrubbing
Flow Type
Counter-current
Automation level
Manual / PLC / SCADA
SOx Removal Efficiency
Excellent
Scrubber Type
Venturi / Limestone / Caustic Soda / Packed Column

Material Compatibility


Corrosive resistance (e.g. acids)
Stainless steel,FRP,Rubber-lined/coated carbon steel
Abrasion resistance
Stainless steel,FRP,Rubber-lined/coated carbon steel

Physical Characteristics


Material used
Stainless steel / FRP / Rubber-lined carbon steel
Scrubber type
Spray tower
Flow type
Counter current
Absorption technology
Wet Flue Gas Desulphurization (FGD)
Produce byproduct
Gypsum
Customization options
Number of nozzle levels
Spray method
Limestone slurry spraying

Custom Options


Material of Construction
Stainless steel,FRP,Rubber-lined/carbon steel
Scrubber Type
Venturi,Limestone,Packed Column
Absorbent Material
Limestone,Hydrated Lime,Caustic Soda
Throat Adjustment
Adjustable for flow variation
Control System
PLC / SCADA