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Gas drying

Gas drying by sorption or cooling

Gas drying through the use of sorption technology or systems using gas cooling is often a necessary prerequisite for subsequent technical processes. The reliable removal of even the smallest traces of moisture in gases is essential in many technical systems.

Gas drying by way of sorption

Differentiated products for use in sorption technology deliver adapted results. We will be happy to advise you!

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

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


Zeolite molecular sieves, available in different geometric shapes and with different pore sizes

Silica gel for drying technical gases and air

NECA|sil® silica gel as an efficient drying agent for the reliable removal of moisture from gases or gas spaces.

  • Hard, spherical beads with a large surface area.
  • Low abrasion rate
  • Very high compressive strength
  • Long service life


Silica gel for dehydration of technical gases and air

Aluminium balls for air drying

NECA|alox® D was specially developed for air drying. A homogeneous surface of the balls provides improved mechanical properties.

Very high abrasion resistance and fracture strength combined with high internal surface area and static adsorption capacity give NECA|alox® D the essential properties required for the most demanding and safe drying operating conditions.

NECA|alox® D

Aluminium balls for air drying

Ceramic balls for various applications

NECA|cb® ceramic balls can be used in a wide range of applications.

  • Compressed air drying
  • Catalytic cracking
  • Catalytic reforming
  • Dehydrogenation
  • Hydrocracking
  • Hydrodealkylation
  • Hydrogenation
  • Hydrotreating
  • Isomerisation
  • Polymerisation
  • Sulphur recovery
  • Thermal cracking


Ceramic balls for various applications

Gas drying by way of gas cooling

Gas cooling is an effective solution in order to dry biogas in the engine prior to combustion. In this process, water condenses out as a result of the gas being cooled, which improves the combustion process in the engine.

Gas cooling for drying biogas

The NECA|tec® D type gascooling system enhances the combustion process in engines, extends the service life of engine oil and helps to prevent corrosion damage over the entire gas section.

  • Robust design for enduring use
  • Powerful cooling performance
  • Different sizes, well adapted for any plant
  • Easy to operate, automatic operation
  • Stainless steel versions in the gas section
  • Safe operating system

NECA|tec® D type gas cooling system

Gas cooling for drying gas prior to combustion

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