Air and Gas Treatment Applications

Breathing clean air has become one of the most important factors nowadays. As per the WHO, 4.2 million deaths every year occur as a result of exposure to outdoor air pollution. Ceycarb offers a wide range of products in its CEVC-Series to meet stringent emission control regulations through treating contaminants at air emission sources efficiently and economically. 

Indoor air treatment – General Applications

Indoor air treatment in commercial places, airports, railway stations, healthcare places, education institutes, museums, libraries, factory premises etc. Ceycarb offers CEVC -Series and tailor-made products for OEM manufacturers who provide products and services for such indoor air treatment applications. These products are capable of absorbing: 

  • Nuisance odour 
  • Organic and inorganic contaminants 
  •  Off-gases from printers, paintings and photocopy machines 
  • H2S, SO2, and other harmful gases
  • Exhaust fumes from machines, generators and vehicles – These acidic gases are harmful to people, books, and paintings
  • Odour and toxin generation in cooking – Kitchen hood applications


Indoor air treatment – Special Applications


Indoor air treatment in special places like data centers, control rooms, document protecting rooms, and centralized power systems need to have special care. In particular, acidic and corrosive gases like SO2, H2S, and VOC have to be removed for the protection of such areas. Ceycarb offers a wide range of products for this air treatment application, including tailor-made products.

 Air/Gas treatment

Ground Air Treatment

Dump Gas/Bio Gas

Solvent Recovery

Treating flue gas

Hydrogen Sulfide Removal and Odour Control
 Hydrogen Sulfide Removal – Pulp and Paper plants
Treatment of
acid gases
Treatment of
Alkali Gases
Treatment of
Natural Gases

Wastewater and sewage treatment plants - Hydrogen sulphide, Mercaptans, TVOC removal, and odour control

Odour nuisance in wastewater treatment plants has become one of a major environmental issue with the increase in population density, public demand and increase in the number of contaminants to wastewater. The gases which cause for Odour are H2S, Mercaptans, TVOC (Toluene, Benzene, Xylene), SO2, Ammonia (NH3) etc. Mainly, Hydrogen Sulphide (H2S) – which contributes to the rotten egg smell and causes a wide range of health effects – can even lead up to death when someone is exposed to high concentrations. Further, these gases are very corrosive and corrode pumps, fans, pipes, and other equipment.

Ceycarb offers a special series of products for removing such gases, eliminating health hazards as well as better use of the plant and equipment. As the products are with normal grades, impregnated grades and advanced catalytic grades, customers can have wide varieties of choices for products. Specially, the catalytic activated products with H2S breakthrough capacity 0.3g/cc gives extremely efficient and economical performance increasing the life span of the adsorbers, thus the downtime in the wastewater treatment plants.


Ground air / Landfill gas treatment

Gaseous emissions are not limited to atmospheric disposal; there are cases where contaminated air seeps into the ground, leaving the soil bed polluted and causing further problems in terms of environmental degradation and building integrity. Treatment of these gases are very important because of the toxicity and ignitability of volatile organic compounds (VOC) such as siloxanes present in these gases. In such cases, the air is suctioned out of the soil and then run through an activated carbon filtration that uses either conventional adsorption or solvent recovery, depending on the type of contaminants.

Ceycarb can offer its expertise and series of products that needs to be dealt with treating such contaminants.

Biogas treatment - Hydrogen Sulphide and Siloxanes removal

Biogas is one of the most interesting and increasing industries nowadays because it uses waste in the production process. While biogas itself is a sustainable resource, and is thus an important part of clean energy generation, its production process can result in toxic by-products such as Hydrogen Sulphide (H2S) and VOCs such as siloxanes, pinene, and limonene that need to be removed before the fuel can be safely used. Such compounds, due to their corrosive nature, can damage the catalysts used in production as well as compromise stability of the plant, making their removal even more important.

The activated carbon solutions offered by Ceycarb come in handy here to protect the catalysts, as well as the plant itself, from corrosion due to these contaminants, safely removing them to ensure a sustainable production output and more economic yields.

Ceycarb offers normal, impregnated and advanced catalytic products with 0.3 g/cc H2S breakthrough capacity to treat such gases ensuring the treated gas to be used in energy generation or feeding into the natural gas grid.

Solvent Recovery 

Industries that deal with dyes, inks, and paints; such as dry-cleaners and printing presses, rely on solvents that turn to vapour over the course of use. Recovering these vapourised solvents from exhaust fumes is beneficial from both an economical and environmental standpoint, and thus, the adsorption process used to filter these compounds from exhaust fumes is usually followed by desorption to recover these chemicals for later use.

Depending on the type of solvent that is to be extracted, different sizes and grades of activated carbon filters can be used, and Ceycarb can provide the right product to ensure your processes are sustainable both ecologically and economically.

Treating flue gas/Incinerator fumes – Mercury and Dioxins Removal

IFlue gas, produced from waste incineration plants, contains trace amounts of several contaminants, including heavy metals and other toxins, including mercury and dioxins. These can wreak serious damage on health and the environment unless thoroughly treated, despite the low concentration in which these are present, which is why stringent emissions standards exist to ensure these are extracted before any waste gas is dispersed.

This requires specially processed powdered activated carbon, which maximises the surface area of contact to ensure up to 99% efficiency of removal. Ceycarb’s purification materials can cater to this requirement, with tailormade solutions to remove toxins present in microscopic quantities, whether through direct dosing or granular fixed-bed filtration methods.

Hydrogen Sulphide Removal – Pulp and Paper plants

Pulp and paper mills commonly deal with hydrogen sulphide emissions from the production process. Not only is this acidic byproduct extremely toxic and harmful to humans, but it is also highly corrosive and can ruin equipment at the processing plant, unless concentration levels are kept within a manageable threshold. Due to this, an efficient purification system is a must in order to avoid constant and expensive replacement of process and control equipment.

The solution Ceycarb can provide here is through activated carbon, ideally treated with alkali salts to neutralise the acidic content, to manage internal acid concentration even at high temperatures, allowing production to continue safely and efficiently.


Treatment of acid gases – Hydrogen Sulphide, Sulphur Dioxide, etc.

Sulphur is commonly seen as a contaminant in industrial gaseous emissions, usually in the form of hydrogen sulphide (H2S), which is extremely flammable and highly toxic. Its corrosive nature means that it can cause damage even within an industrial system, causing piping and equipment to rust and leading to further leakage and contamination. 

In addition to H2S, other sulfur species such as carbonyl sulphide (COS), mercaptans (RSH), and organic sulphides (RSR), SOx and NOx, HCl, HF acid gases are available in gas streams.

Activated carbon has proven extremely effective at filtering out this harmful substance, especially when impregnated with metal compounds or alkali salts to neutralise acidity, and 

Ceycarb offers a special series of products for removing such gases eliminating health hazards as well as better use of the plant and equipment. As the products are available in normal grades, impregnated grades, and advanced catalytic grades, customers can have wide varieties of choices for products. In particular, the catalytic activated products with H2S breakthrough capacity 0.3g/cc gives extremely efficient and economical performance increasing the life span of the absorbers, thus the downtime in the wastewater treatment plants.

Treatment of alkali gases – Ammonia, Sodium Hydroxide fumes, etc.

Industrial processes that require cleaning and bleaching, such as laundering and metal processing, typically result in the emission of alkali gases such as sodium hydroxide or ammonium hydroxide, as well as other inorganic compounds, which can damage the airways of humans unless filtered out within the process.

Maintaining this often requires that other cleaning technologies used in the process are coated or treated with activated carbon to ensure that such contaminants are adsorbed and filtered out before they can enter the environment. Ceycarb offers such activated carbon solutions in granulated or extruded form that are additionally treated with other chemicals to guarantee no toxins escape their grasp.

Treatment of Natural Gases – Hydrogen Sulphide, Mercaptan and Mercury removal

The production of natural gas also results in the formation of byproducts such as hydrogen sulphide and mercury, both of which are extremely dangerous to humans and the environment. These byproducts are also known to damage the catalysts used in production and corrode machinery downstream unless they are maintained at controlled levels, thus affecting output yields and reducing process efficiency.

Ceycarb allows your operations to be maintained well-within safety parameters with tailor made activated carbon products. These include alkali-salt-impregnated activated carbon products and well-advanced catalytic products with 0.3g/cc H2S breakthrough capacity, for H2S and mercaptan removal and Sulphur impregnated products for mercury removal, in a fixed bed adsorption method that can eliminate such dangerous contaminants to allow continued operational efficiency.