Mobile Gas Scrubber

Mobile Gas Scrubber

Asahi Glassplant (AGI) offers Glass Scrubbers, including mobile versions, designed to neutralize corrosive exhaust gases from chemical reactors and other processes. These mobile scrubbers are particularly valuable for pilot plants, multi-purpose facilities, and R&D labs where flexibility and ease of relocation are key.

Here are the details on AGI's gas mobile scrubbers:

1. Purpose and Application:

  • Neutralization of Corrosive Exhaust Gas: The primary function is to remove hazardous and corrosive vapors and gases (e.g., acidic or caustic fumes, solvents) from reactor off-gas streams before they are released into the atmosphere or further treated.
  • Off-gas Treatment: A crucial component for environmental protection and workplace safety in chemical and pharmaceutical industries.
  • Stripping: Can also be used for stripping applications where a gas is used to remove volatile components from a liquid.
  • Scale-up and Process Development: Their mobile nature makes them ideal for early-stage process development, where different setups might be tested, or for pilot plant operations that require adaptability.
  • Multi-purpose and Pilot Plant Applications: They are well-suited for facilities that handle a variety of chemical processes and may need to move the scrubbing unit between different setups.

2. Key Features and Design:

  • All-Glass Construction (Borosilicate Glass 3.3):
    • Corrosion Resistance: Borosilicate glass offers exceptional chemical resistance to a wide range of acidic and caustic scrubbing liquids and the gases being treated. This ensures long-term durability and prevents contamination.
    • Process Visibility: The transparent glass design allows for visual monitoring of the scrubbing process, including the liquid flow, gas dispersion, and any potential issues like foaming or fouling. This is a significant advantage over opaque metal scrubbers.
  • Mobile Design (Trolley Mounted):
    • The entire scrubber unit is mounted on a mobile trolley, typically equipped with two lockable steering castors and two fixed castors. This provides maximum maneuverability, allowing the unit to be easily wheeled into place alongside the process plant.
    • Reduced Installation Costs: Eliminates the need for expensive permanent installations and complex piping, as it can be simply connected to the process using quick-release couplings and flexible hoses.
    • Flexibility: Offers high flexibility for different experimental setups or production needs.
  • Integrated Components: Each mobile scrubber unit is supplied as a complete system, including:
    • Scrubber Column: The main column where the gas-liquid contact occurs. Available in various diameters (e.g., DN 50, 100, 150, 225).
    • Sump Tank (Scrubbing Liquid Reservoir): Holds the scrubbing liquid (e.g., water, acid, alkali solution). Available in volumes such as 6, 10, 20, 50, 100 liters.
    • Recirculation Pump: A fluoropolymer-lined, corrosion-resistant magnetic coupled pump is used to recirculate the scrubbing liquid from the sump tank to the top of the column. The magnetic coupling ensures leak-proof operation, crucial when dealing with corrosive liquids.
    • Recirculation Cooler (Spiral Cooler): Maintains the temperature of the scrubbing liquid, which is important for efficient absorption of gases, especially when exothermic reactions occur during neutralization.
    • Flow Rate Control: A built-in reducing valve allows for control of the scrubbing liquid's flow rate.

3. Operational Specifications:

  • Pressure: Can operate under vacuum (-1.0 FV, or Full Vacuum) to positive pressure (+0.5 barG).
  • Temperature (Exhaust Gas): Designed to handle exhaust gases from -60 °C to +200 °C.
  • Temperature (Scrubbing Liquid): The scrubbing liquid typically operates between 0 °C and +80 °C.
  • Materials of Construction: Primarily Borosilicate glass 3.3 and PTFE for all wetted parts, ensuring maximum corrosion resistance.

4. Advantages:

  • Unrivaled Corrosion Resistance: Due to the extensive use of borosilicate glass and PTFE.
  • Process Visibility: Enables operators to see the scrubbing process directly.
  • Flexibility and Mobility: Easy to move and connect to different setups.
  • Reduced Pressure Losses: Compared to long, permanent pipeline installations.
  • Standard and Custom Designs: AGI offers standard mobile scrubbers (e.g., with DN100 and DN150 columns) and can also provide custom designs to meet specific process requirements.

In essence, AGI's mobile glass scrubbers are a high-quality, safe, and flexible solution for treating exhaust gases in research, development, and small-scale production environments where corrosive fumes are a concern and mobility is desired. They embody AGI's core strengths: engineered glass systems, chemical resistance, and practical design for laboratory and pilot plant applications.

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