Mobile gas scrubber system

Mobile gas scrubber systemThe absorption can be carried out through membrane technology or regenerated falling film technology in packed tower, regular packed tower, plate tower, and bubble tower reactors. No matter how technology changes, the main goal is to increase the contact area between the gas and liquid phases to improve process efficiency.

Equally important, the absorption process always releases heat, which means that a cooling thermostat is usually needed to cool the device and avoid emergency situations.

Pfaudler NormagSystems offers a variety of standardized single-stage and two-stage gas scrubbers, ranging from small laboratory systems to large laboratory systems with a performance of 250 Nm3/h. We can also provide different levels of automation for scrubbers - pH/conductivity/temperature sensors (with controllers) for tracking the status of the absorbent. The controller will remind to replace the liquid in a timely manner to avoid emergency situations.

The washer and other instruments (such as pumps and instruments) are made of borosilicate glass 3.3 and only come into contact with chemically resistant materials and media. This ensures long-term operation.

product scope

DN50-100 specificationMobile gas scrubber system

DN100-200 specification gas scrubbing pilot plant

Compact two-stage gas scrubbing system

Laboratory compact DN80 gas scrubbing system

Mobile gas scrubber systemIt is a flexible and deployable wet gas purification equipment that removes pollutants from gases through gas-liquid contact principles, especially suitable for emergency response, multi-point operations, and temporary project scenarios. The working process can be divided into six key stages: preparation stage, start-up stage, core purification stage, monitoring stage, shutdown stage, and post-treatment stage, following the basic process of 'intake → washing → gas-liquid separation → exhaust' as a whole.

1、 Core components of the system

Mobile gas scrubbers are usually integrated on a movable chassis and mainly include:

Washing tower body (including packing layer/regular packing/atomization system)

Storage tank and circulation pump (for conveying detergent)

Fan (providing gas flow power)

Mist remover (separates entrained droplets)

Control system (including monitoring instruments)

Mobile devices (wheels, trailers, or vehicle platforms)

Connecting hoses and interfaces (quick connection to pollution sources)

2、 Complete workflow

1. Preparation stage: Deployment and debugging

On site positioning: Move the equipment to the vicinity of the pollution source, ensure stable placement, and connect the power and water sources

Pipeline connection: Use a dedicated hose to connect the gas inlet and the pollution source exhaust port, and check the sealing

Washing solution configuration: Add appropriate washing solution according to the type of pollutant (such as alkaline solution for acidic gases, acidic solution for alkaline gases, and clean water for dust) to reach the specified liquid level

System inspection: Confirm that the fan, pump, valve, and instrument are all normal and have no leaks

2. Startup phase: sequential operation

Pre circulation: Start the circulation pump first to circulate the washing solution in the system for 2-3 minutes, ensuring even spraying

Fan start: Turn on the fan to generate negative pressure and suck the polluted gas into the washing tower

Parameter adjustment: Adjust the air volume and liquid flow rate to the optimal working conditions to ensure the appropriate gas-liquid ratio

3. Core purification stage: pollutant removal (key step)

This is the core process of gas purification, which is divided into four steps:

Gas introduction, polluted gas is sucked in by the fan and evenly enters the bottom/side of the washing tower through the gas flow distributor

Gas liquid contact, the washing liquid forms a liquid film or mist droplets through the spray system/packing layer, and comes into counter current contact with the rising gas. It undergoes physical absorption (soluble gas), chemical neutralization (acid-base reaction), and inertial collision (particulate matter)

Quality transfer, pollutants are transferred from the gas phase to the liquid phase, and complete a full reaction in the packing layer/atomization zone, where acidic gas+alkaline solution → salt+water; Alkaline gas+acid solution → salt+water; Dust is captured by droplets

Gas liquid separation, purified gas passes through a demister (baffle/wire mesh) to remove entrained dropletsIntercept and centrifuge droplets to prevent secondary pollution

Mobile special design: Adopting a multi-stage washing system, deep purification is achieved through the sequential use of cleaning solution, honeycomb grid, Raschig ring, atomization system, and maze separation system.

4. Monitoring stage: Real time optimization

Parameter monitoring: Continuously monitor key indicators such as inlet and outlet gas concentration, pressure, temperature, pH value, liquid level, etc

Automatic adjustment: Adjust the washing solution flow rate and fan speed based on monitoring data to maintain optimal purification efficiency

Exception handling: If the pH value deviates from the set range, a neutralizing agent will be automatically added; Alarm prompt for fluid replenishment when the liquid level is too low

5. Shutdown phase: Safe operation

Stop intake: first close the exhaust valve of the pollution source or disconnect the gas connection

Fan delay: Keep the fan running for 3-5 minutes to exhaust residual gas inside the tower

Stop circulation: Turn off the circulation pump and stop the circulation of the washing solution

System flushing: Rinse the internal pipelines with clean water to prevent the deposition of pollutants

6. Post treatment stage: waste liquid disposal

Waste liquid collection: discharge contaminated detergent from the storage tank into a dedicated container

Standard treatment: Neutralization, precipitation, or filtration treatment is carried out according to the nature of pollutants to meet emission standards

Recycling: Processed and qualified detergent can be reused, reducing operating costs