What is a Chemical Scrubber?
Chemical scrubbers are wet scrubbers that make use of chemicals to remove harmful substances from gas exhaust. They operate by bringing the polluted gas stream into contact with a scrubbing liquid, which absorbs and neutralizes pollutants such as Ammonia (NH₃), Sulfur Dioxide (SO₂), Hydrogen Chloride (HCl), Hydrogen Fluoride (HF) and many more. Chemical scrubbers are an effective way to mitigate and reduce emissions.
Why Choose a Chemical Scrubber?
Chemical scrubbers are essential for industries aiming to control emissions of hazardous gases and maintain regulatory compliance. They are particularly effective in removing water-soluble pollutants and can handle high-temperature gas streams. Choosing chemical scrubbers is advantageous when your site requires:
High Removal Efficiency
Versatile for many Pollutants
Effective Odor Control
Acid Gas Emissions
Advantages & Disadvantages of Chemical Scrubbers
When considering pollution control technologies, Chemical scrubbers offer a range of advantages and disadvantages. They are widely used in many industries to reduce harmful emissions. However, like any system, dry scrubbers come with trade-offs.
Advantages:
Effective Pollutant Removal: Capable of removing both particulate matter and gaseous pollutants, including acidic gases like sulfur dioxide (SO₂) and hydrogen chloride (HCl).
Effective Odor Control: Highly effective for odorous materials like ammonia (NH₃) or hydrogen chloride (HCl)
Versatility: Suitable for handling high-temperature and high-humidity gas streams, making them adaptable to various industrial processes.
Explosion Prevention: In applications involving combustible dust, wet scrubbers eliminate the risk of explosions within the scrubber system.
Compact Design: Generally, chemical scrubbers require less space compared to other emission control devices, allowing for more flexibility in installation.
Heat Recovery Potential: Can be designed to recover waste heat from hot gas streams and reused for other processes with the use of heat exchangers and heat pumps.
Disandvantages:
Corrosion Issues: The use of water and dissolved pollutants can form highly corrosive acid solutions, necessitating the use of proper construction materials to prevent equipment degradation.
High Energy Consumption: Achieving high collection efficiencies may require significant energy input, leading to increased operational costs.
Complex Water Pollution: The process generates wastewater that contains captured pollutants, requiring proper treatment to meet environmental regulations.
Maintenance Requirements: Regular maintenance is necessary to prevent issues such as scaling, fouling, and biological growth within the system.
Proven Process: A Clear 4-Step Plan
Our proven approach consists of advising, designing, building and implementing tailor-made solutions:
Pre-Engineering Study
The Pre-Engineering Study is the first step in JOA Air Solutions’ process. It assesses whether a chemical scrubber is the optimal solution for emission control, energy efficiency, and safety by utilizing data collection and air technical modelling, resulting in a tailored concept design and budget quotation.
Design & Engineering
System Realization
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Start with a Pre-Engineering Study and learn how our proven process can enhance your performance, safety, and compliance. Let us help you design, realize, and maintain the perfect solution tailored to your needs for air filtration, energy recovery and more.
After implementation, we take care of ‘Preventive Maintenance’, ‘Remote Monitoring’ and Service & Spare Parts so that your chemical scrubber continues to perform optimally over time.
Clients That Trust JOA
Leading manufacturers, chemical plants, and food processing companies rely on custom chemical scrubber solutions to achieve environmental compliance and operational efficiency at the same time. We are proud to work with a wide range of the largest industrial manufacturers with the most complex production processes, worldwide.
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Chemicial Scrubber FAQ
A chemical scrubber is a pollution control device used to remove hazardous chemicals and gases from industrial exhaust streams before they are released into the atmosphere. Chemical scrubbers, both wet and dry, are designed to capture and neutralize pollutants, making them safer for the environment
A wet scrubber is a pollution control device that removes contaminants from industrial exhaust gases by introducing a liquid with chemicals which captures and neutralizes pollutants. The cleaned gas is then released, often passing through a mist eliminator to remove residual liquid droplets.
Chemical gas scrubbers can remove a wide range of pollutants from industrial gas streams. Some of the most common chemicals removed include sulfur dioxide (SO2), hydrogen sulfide (H2S), ammonia (NH3), chlorine gas (CI2), nitrogen oxides (NOx), volatile organic compounds (VOCs), sulfuric acid (H2SO4). Chemical scrubbers ca be fully customized to target specific gases and pollutants, making them adaptable to various industrial needs.
See full list of Checmicals here
Chemical scrubbers are vital in industrial pollution control. Chemical scrubbers can significantly improve air quality by reducing the emission of hazardous chemicals, resulting in enhanced air quality. They also ensure regulatory compliance by keeping emissions within legal limits while at the same time playing a critical role in minimizing the environmental impact of industrial emissions. Lastly, modern chemical scrubbers are designed with efficiency in mind, optimizing their energy consumption while maintaining high levels of pollutant control.
Depending on the industry and application, there are different types of chemical scrubbers. Chemical scrubbers play a crucial role in industrial pollution control by removing harmful gases from emissions. Ammonia scrubbers use acidic solutions to neutralize ammonia, preventing its release into the air. Chlorine scrubbers rely on caustic solutions like sodium hydroxide to capture and neutralize toxic chlorine gas. Amine scrubbing is commonly used in natural gas processing to remove hydrogen sulfide and carbon dioxide. These systems help industries minimize environmental impact, improve air quality, and comply with strict regulations, making emissions cleaner and safer for both people and the environment.
