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Air and gas purification

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!

Doped extruded activated carbon for the desulphurisation of biogas and technical gases

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® sulfo max/pro/plus/basic

Doped extruded activated carbons produced according to the ISDAC® method, measuring 4 mm in diameter, available in different qualities

Extruded activated carbon for adsorptive gas cleaning and adsorptive gas drying

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® gc

Extruded activated carbons for adsorptive gas purification, available in different classes and qualities

Reactivated extruded carbon for the removal of trace gases

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 granulate for adsorptive water purification and absorptive 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

Carbon molecular sieves for the separation of technical and biogenic gases

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|cms®

Carbon molecular sieves with different performance parameters

Zeolite molecular sieves for the separation and drying of technical and biogenic gases

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

Catalysts for the purification of industrial gases

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

Honeycombs for adsorptive gas cleaning

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

Iron pellets for the fine desulphurisation of biogas

A cost-effective alternative that also enables safe desulphurisation: NECA|feps® iron pellets for the effective removal of hydrogen sulphide from biogas.

  • Outstanding loading
  • Oxygen-free
  • Easy to use in humid gas streams
  • No prior gas conditioning required
  • Complies with the Fertiliser Ordinance (Düngemittelverordnung)

NECA|feps® S + L

Iron pellets, measuring 4 mm or 10 mm in diameter

NECATEC AG
Bredeneyer Str. 2B
45133 Essen, Germany
Tel.: +49 201 - 99 99 96 60
Tel.: +49 201 - 61 20 43 97
Fax: +49 201 - 61 20 43 99
info@necatec.de