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Skilled desulphurisation

One of NECATEC AG's core competencies is its ability to create innovative products enabling efficient desulphurisation. We are able to draw on our vast experience, combining it with our research and development work to create effective products. Our focus is on optimising operating costs and ensuring the secure operation of your biogas plant.

Fine desulphurisation during the gas phase

Whether the situation in question involves highly specialised activated carbon or iron pellets for fine desulphurisation pur-poses during the gas phase, reducing operating costs as much as possible by using the products in the best possible way is of key importance here. By providing advice tailored to your needs, we are able to determine the right product for your biogas plant.

Activated carbon for the fine desulphurisation of biogas

Highly specialised doped and moulded activated carbons, measuring 4 mm in diameter, enabling efficient fine desulphurisation in the gas stream and suitable for any biogas plant.

  • Removal of hydrogen sulphide
  • Removal of disulphides
  • Removal of mercaptans
  • Removal of odorants

NECA|active® sulfo max

The proficient product: Activated carbon enabling ultimate loading with hydrogen sulphide and organic sulphur compounds in increasingly moist gas streams

NECA|active® sulfo pro

The all-rounder product: Activated carbon enabling ultimate loading with hydrogen sulphide in biogases with different moisture levels

NECA|active® sulfo plus

The product that pushes boundaries: Activated carbon enabling safe desulphurisation at low cost in increasingly dry gases

NECA|active® sulfo basic

The product you can rely on: Typical activated carbon for the desulphurisation of biogas, simple and safe to use

Iron pellets for the fine desulphurisation of biogas

A cost-effective alternative that also enables safe desulphurisation, iron pellets are used for the effective removal of hydrogen sulphide from biogas.

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

NECA|feps® S + L

Iron pellets, measuring 4 or 10 mm in diameter, enabling outstanding loading without oxygen in moist gas streams

Coarse desulphurisation during the liquid phase

The formation of hydrogen sulphide in your biogas plant’s fermenter can be reduced in an efficient manner by feeding in iron hydroxide. The material feed in the fermenter is low thanks to the high iron content. No additional sediment is formed thanks to the purity of the products.

Iron hydroxides for the coarse desulphurisation of biogas

Iron hydroxides, supplied as a fine powder, reaction-promoting and provided in fermentable paper bags, simple and safe to use.

  • Reduced hydrogen sulphide in the fermenter
  • No corrosion
  • Compliant with the Fertiliser Directive (Düngemittel-richtlinie) without any restrictions on additives

NECA|sorb® neo

Pure and natural iron hydroxide with low heavy metal content and high share of amorphous iron, no sedimentation and highly effective

NECA|sorb® 100

100% pure, synthetic and highly effective iron hydroxide, no heavy metals or sediment caused by the industrially controlled manufacturing process

Gas treatment

Technical gas treatment optimises operational safety thanks to reduced downtimes, reduced consumption of auxiliary mate-rials and extended service life of components and units. This results in noticeable cost savings with regard to the operation of your biogas plant.

Activated carbon replacement filters for biogas plants

The NECA|tec® 700 M and 1.100 M type activated carbon filters are the ideal product solutions for separating hydrogen sulphide from biogas. Be inspired by this sophisticated and innovative technology that meets the most stringent of quality standards.

  • Made from stainless steel
  • Compact design
  • Internal insulation
  • Replacement system – easy to replace
  • Integrated zonal probes
  • Available in two sizes: 700l and 1,100l

NECA|tec® M type activated carbon filter

Activated carbon replacement filter for biogas plants to reduce hydrogen sulphide

Single or double chamber filter for biogas plants

The NECA|tec® K 2002 and K 3001 type activated carbon filters are some of the most effective systems available for the purification of hydrogen sulphide, impressing with their innovative technology and proven “Made in Germany” quality.

  • Single or double chamber systems
  • Different sizes: 1x3,000l or 2x1,000l
  • Steel with special coating
  • Thermal insulation with mineral wool and aluminium sheet jacket
  • Cage ladder and podium and/or working platform with railings
  • Simple activated carbon replacement with “Big Bags”
  • Low maintenance costs

NECA|tec® K type activated carbon filter

Single or double chamber filter for biogas plants to reduce hydrogen sulphide

Gas cooling for dehumidification of 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 dehumidification of gas prior to combustion

Gas yield increase

The best gas yields in your biogas plant's fermenter are only achieved if the biology involved is working in a stable and reli-able manner. In order to achieve this target in a secure and enduring manner, the micro-organisms involved need to have a good supply. Any biological substance replacement requires essential nutrients, so-called “trace elements”, in order to achieve the best possible yield.

Trace elements to increase gas yield

Trace elements and micro-organisms developed in the laboratory in liquid form, which increase the methane yield in biogas plants.

  • Rectification of defect-based process failures
  • High biological availability
  • More stable and shorter phase for commissioning
  • Accelerated and more stable biogas process
  • Higher and better biogas yields

NECA|bacX® MethaMax

Standardised mixing of essential trace elements to ensure and increase methane formation

NECA|bacX® MethaMax pro

Individually tailored trace elements to ensure and increase methane formation following analysis of digestate

Activated carbon replacement service

Best service by NECATEC!

Supply, replacement or professional disposal, available as individual services or an “all-in-one” solution – you can rely on us to provide you with customised solutions in line with your requirements, and subject to favourable terms too.

  • Joint scheduling process
  • Supply of required activated carbon
  • Professional emptying and filling of activated carbon filter, including inerting
  • Pick-up and professional disposal of loaded activated carbon
  • Certificate of disposal for the loaded activated carbon

Plant optimisation

High operating costs?

The optimisation of operating costs is a process that plant operators are increasingly focusing on nowadays. We work together with you to ascertain your potential in terms of desulphurisation within your entire production chain. This allows you to benefit from our in-depth experience, and we are also able to revert to a variety of specialist products in order to find the best solutions tailored to your needs.

By discovering your potential in terms of optimisation measures, you can then make effective savings and, in doing so, reduce your costs directly!

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