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Activated carbon

Specially activated porous carbon for the desulphurisation of biogas and for gas purification.

Activated carbon analysis

Analysis of activated carbon and loaded activated carbon in our in-house laboratory for quality assurance purposes and the development of new products. Established standard methods are applied here, but test facilities developed in-house are also used.

Activated carbon filters

Technical systems as activated carbon replacement filters and as single or double chamber filters for the desulphurisation of biogas.

Biogas

Methane gas, produced in biogas plants by the digestion of biomass, and which is used to generate electric energy, operate vehicles or feed into gas supply networks.

Biogas purification

Removal of harmful trace gases from biogas.

BTEX, BTX

Benzene, Toluene, Ethylbenzene, Xylene, aromatic hydrocarbons, including volatile organic compounds (VOC).

Deodorisation

Removal of unwanted odorants from technical and biogenic gases.

Landfill gas

Methane gas produced in landfill site as a result of the decomposition of organic substances.

Disulphides

Sulphur compounds.

Doped activated carbon

Specially treated activated carbon with improved pore structure for the desulphurisation of biogas and for gas purification.

Iron hydroxide

Pure, natural or synthetic iron hydroxide as a fine powder for coarse desulphurisation in the fermenter of biogas plants.

Iron pellets

Highly amorphous iron oxide in pellet form used to remove hydrogen sulphide from biogenic and technical gases without oxygen.

Iron powder

Pure, natural or synthetic iron hydroxide as a fine powder for coarse desulphurisation in the fermenter of biogas plants.

Desulphurisation

Removal of sulphur compounds from biogenic and technical gases.

Moulded activated carbon

Activated carbon in pellet form for the desulphurisation of biogas and for gas purification.

Gas cooling

Removal of water from biogenic and technical gas streams by way of cooling. Water is condensed out by cooling the gas.

Gas purification

Removal of harmful trace gases from biogenic and technical gases.

Gas separation

Separation and extraction of specific substances, such as oxygen, nitrogen, methane, CO2, odorants and mercaptans from gas streams by means of pressure swing adsorption.

ISDAC method

In-Situ Doped Activated Carbon, specially treated chemisorptive activated carbon with improved pore structure for the desulphurisation of biogas and for gas purification.

Sewage treatment gas

Methane gas produced in the course of decomposition processes, such as in the digesters of sewage treatment plants.

Co-fermentation

Digestion of food scraps and green waste.

Hydrocarbons

Chemical hydrocarbon compounds.

Laboratory

Chemical laboratory for the performance of activated carbon analyses for quality assurance purposes and the development of new products.

VHHC, VCHC, VFHC

Volatile halogenated hydrocarbons (VHHC)

Volatile chlorinated hydrocarbons (VCHC)

Volatile fluorinated hydrocarbons (VFHC)

Solvent recovery

Removal and recovery of solvents from technical gas streams.

Mercaptans

Organic, complex sulphur compounds.

Methane, biomethane

CH4 C4 compound, colourless and odourless, combustible gas of fossil origin or from biological processes.

Odorisation

Technically added odorants in natural gas.

Ozone

O3 molecule made up of three oxygen atoms, also referred to as “active oxygen”, highly aggressive oxidising agent.

PSA, Pressure Swing Adsorption

Physical method used to separate gas under pressure by means of adsorption. In the adsorption process, specific substances from the gas are concentrated on the surface of a solid. Porous materials, such as zeolites or activated carbon, are used as solids.

Relative gas humidity

Water content of gases in proportion to capacity, temperature and pressure.

Oxygen

O2 – colourless and odourless gas, which makes up 21 % of the content of air.

Hydrogen sulphide

H2S – toxic and highly corrosive acidic trace gas.

Siloxanes

Highly abrasive silicon compounds.

Terpenes, limonenes, pinenes

Chemical compounds based on hydrocarbons in the form of terpene alcohols, glycosides, ethers, aldehydes, ketones, carboxylic acids and esters, mostly of biogenic origin, such as essential oils.

Toluene

Solvents for colours, paints and adhesives.

VOC

Volatile Organic Compound(s)

Zeolites

Synthetically produced microporous solids, alkaline, potassium-based or sodium-based. Can be used effectively in a variety of applications thanks to their specific geometric shapes and homogeneous pore structure available in different sizes: used for the separation and extraction of oxygen, nitrogen, methane and CO2, the removal of odorants and mercaptans and the drying of gases.

NECATEC AG
Bredeneyer Straße 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