Air purification is a standard long-term application for NORIT®. Removal of a variety of impurities from industrial exhaust flow, indoor air, or climate control units are needed to protect people and the environment.
Fruit storage is a special air purification application. NORIT® activated carbon is used to adsorb ethylene and carbon dioxide to prolong the shelf life of stored fruits.
Our premium extruded activated carbons effectively remove:
- Volatile organic components (VOC) by physical adsorption
- Toxic gases, such a mercury and hydrogen sulfide, by impregnated grades
- Odors / smells, by a combination of physical and chemical adsorption
Filter designs with optimal contact, efficiency and pressure drop can be advised by our technical support engineers.
The service life of the carbon can be predicted and enhanced by our experienced specialists.
Reactivation and rental filters help you operate and dispose or recycle the activated carbon beds.
NORITHENE® plates consist of extruded activated carbons, bonded into plates of various sizes with a polyurethane rim. NORITHENE plates provide a robust, vibration resilient, solution for air filtration units in airports, hospitals, clean rooms, laboratories, etc.
Odor control
Unwanted odors can be disruptive. NORIT® activated carbon systems are used to remove smells from sewage gas in wastewater treatment plants, pumping stations, and other exhaust locations.
NORIT® Activated Carbon is used to remove:
- Hydrogen sulfide, by oxidizing it to sulfur, which is stored in the pores of the activated carbon
- Organic sulfur components, like mercaptans and disulfides
- Traces of other offensive organic (hydro)carbons
- Ammonia
Optimal filter design with required contact times, removal efficiencies, and pressure drop can be advised by our technical support engineers. Adsorption isotherms and experience from the field determine the service life.
We offer:
- Activated carbons with unique properties especially suited for odor removal
- Extruded carbon with a catalytic surface or an impregnation to oxidize H2S and physically adsorb organic (sulfur) components.
Gas masks and filters for personal protection
Exposure to toxic or harmful gases is a concern for both military and industrial personnel. Protective equipment (PPE) such as gas masks or respiratory filters protect people from these toxic gases.
NORIT® offers a wide range of activated carbons to meet strict regulations and international standards. This unique portfolio is based on both granular and extruded activated carbons:
- Industrial classes are met for organic, inorganic, acidic and ammonia contaminants
- Military grades are made based on the relevant specifications combining physical and chemical adsorption
- Larger particle size grades are supplied for shelter and vehicle filters
Applicable standards and certifications are of course met by our recommended products.
Solvent recovery
Organic solvents are used in various industries and eventually evaporate into the air. These solvent vapors can be economically recovered by high performance, NORIT® activated carbon-based recycling systems which enable adsorption and then desorption of desired solvents.
Our SORBONORIT® activated carbon products offer the optimal:
- Pore size distribution and pore volume, for adsorption and regeneration
- Hardness and durability
- Particle diameter and pressure drop
- Disposal or re-use by reactivation
- Performance in case of reactive (oxidation sensitive) solvents
Waste incineration (flue gas)
Dioxins and mercury need to be removed from the flue gases generated by incineration processes to protect the environment.
NORIT® and DARCO® powdered activated carbons are optimized by extensive experience for both physically adsorbing dioxins and oxidizing mercury by chemically treated carbons. Special grades for use before various dust filters and more complex process conditions are available. All grades are supported with safety characteristics according to standard procedures.
We supply NORIT® and DARCO activated carbons both to incineration plants and to plants compounding our activated carbon with e.g. lime.
