Adsorptive purification of biogenic and technical gases
Unwanted trace gases are often the cause of expensive damage in technical facilities, are toxic and also have an environmental impact too. Thanks to our experience and technical knowledge, we are on hand to help you remove these trace gases from all kinds of biogenic and technical gas streams.
In air and gas purification, adsorption plays an extremely important role as physical adsorption (physisorption) or as chemical adsorption (chemisorption). There are numerous areas of application here.
- Purification of technical gases
- Purification of biogas, sewage treatment gas and landfill gas
- Solvent recovery
- Soil air purification
- Exhaust air purification and odour removal
- Hydrogen and noble gas purification
Products for the adsorptive purification of gases
The products that can be used are as varied as the areas of application. We will be happy to advise you!
NECA|active® sulfo are doped extruded activated carbons produced according to the ISDAC® method (In Situ Doped Activated Carbon) with an improved pore structure, enabling efficient desulphurisation of biogas and technical gases.
- Removal of hydrogen sulphide
- Removal of sulfur dioxide
- Removal of disulphides
- Removal of mercaptans
- Removal of thiols
- Purification of biogas, sewage treatment gas and landfill gas
- For sewage structures
- For odor reduction
NECA|active® gc are highly adsorptive, dustless extruded activated carbons with a very wide range of possible uses in adsorptive gas cleaning. Various requirements are met in the best possible way due to differentiated qualities.
- Removal of siloxanes D3 - D6
- Removal of VOC
- Removal of BTEX
- Removal of aromatic hydrocarbons
- Removal of toluene
- Removal of ozone
- Removal of odorants
- Purification of technical gases
- Purification of biogas, sewage gas and landfill gas
- Solvent recovery
- Soil air purification
- Exhaust air purification
- Adsorptive drying
NECA|active® rea are reactivated extruded carbons for secure and efficient gas purification, ready to use in a variety of applications.
- Removal of siloxanes D3 - D6
- Removal of VOC
- Removal of BTEX
- Removal of aromatic hydrocarbons
- Removal of toluene
- Removal of ozone
- Removal of odorants
NECA|active® rea
Reactivated extruded carbons for adsorptive gas purification
Activated carbon granulates are so-called direct activates, as they are not shaped. The natural form of the granules of stone, coconut or charcoal is used and these are activated directly at over 930°C with steam. A subsequent classification enables the delivery of a specific grain size.
NECA|active® gr activated carbon granulates are versatile and characterized by a high internal surface area and a wide pore spectrum.
- For drug purification in the liquid phase
- For water purification
- For gas cleaning
NECA|active® gr
Activated carbon granulates in various grain sizes and qualities
NECA|cms® carbon molecular sieves are characterized by a precisely defined micro-pore system, with long-lasting and reliable performance. Due to their high hardness, dust and abrasion are minimized during operation. Various quality classes open up a wide range of possible uses for the user.
- Separation and production of nitrogen
- Biogas upgrade (CO2 depletion)
In addition to delivery with NECA|cms®, NECATEC always offers you comprehensive technical advice and a professional exchange service.
NECA|zeo® are synthetically produced microporous solids, alkaline, potassium-based or sodium-based. They can be used effectively in virtually any application due to their specific geometric shapes and homogeneous pore structure available in different sizes.
- Separation and extraction of oxygen
- Separation and extraction of methane
- Removal of odorants
- Removal of mercaptans
- Drying of gases
NECA|zeo®
Zeolite molecular sieves, available in different geometric shapes and with different pore sizes
NECA|deoX® are catalysts made of different metals with different concentrations and in different pellet sizes.
Main applications
- Removal of oxygen from hydrogen gases using palladium catalysts
- Removal of oxygen from nitrogen gases using palladium catalysts
- Removal of carbon monoxide and hydrocarbons from oxygen gases using platinum catalysts
Purification equipment
- Various deoxidisers (catalyst-filled containers)
- Automatic and manual hydrogen addition systems
- High-pressure hydrogen purification systems
NECA|deoX®
Catalysts for the purification of industrial gases
NECA|hc® honeycombs are ceramic, extruded moulded bodies coated with activated carbon with various applications in adsorptive gas cleaning.
- Modular system (construction kit) and large variety of shapes
- Low flow resistance
- Large and freely accessible reaction surface
- High, variably installable activated carbon content
- High adsorption efficiency
- High mechanical strength
- Dust-free
- Temperature stable
- Thermally regenerable
- Non-flammable and chemically resistant
- Suitable as carrier for catalysts and impregnations
NECA|hc®
Honeycombs for adsorptive gas cleaning
A cost-effective alternative that also enables safe desulphurisation: NECA|feps® iron pellets for the effective removal of hydrogen sulphide from biogas.
- Outstanding loading
- Possible without oxygen
- Easy to use in humid gas streams
- No prior gas conditioning required