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Activated carbon is produced from organic substances, such as coconut shells, turf, and various kinds of carbon, by means of heating and special treatment with a view to ensure a considerable increase in the inner and outer surface. The creation of very fine pores provide the adsorption of the effective surface up to 1250 m² per each gram of activated carbon. This extremely large adsorption surface has an outstanding level of separation and great capacity of storage – accumulation of harmful pollutants.
There are 2 different types of activated carbon (standard non-impregnated and impregnated carbon), that are commonly used for the removal of harmful pollutants from the air and for the cleaning of gases.
Standard non-impregnated activated carbon (AC) separates pollutants by means of physical adsorbtion. It is ideal for the adsorption of organic vapours and odours with a high molecular weight.
Table of the adsorption capacity for some substances in the application of standard non-impregnated activated carbon.
| Very good adsorption 20-30% of AC weight | Good adsorption 10-18% of AC weight | Very low adsorption 3-8% of AC weight |
| Toluene, xylene, petrol, phenols, benzene, chloroform, styrene, perchlorethylene, acetates, kerosene, turpentine, odours from kitchen, smokehouses, and meat processing plants, harmful pollutants generated by welding operations, odours from waste water treatment plants, body odours, harmful substances generated by gluing and soldering operations, solvents, tobacco smoke, hospital odours, disinfectants, and benzene | Ether, anaesthetic agents, acetone, methyl alcohol, phosgene, acetates, and smog gases | Acrolein, ethane, propane, ethylene, chlorine, methane, ammonia, formaldehyde, and carbon dioxide. Note: It is necessary to use special impregnated AC |
Special impregnated activated carbon separates harmful pollutants by means of chemical adsorption.
This kind of AC is used for the adsorption of gases and vapours that are adsorbed by standard activated carbon very little or are not adsorbed at all. This applies to low-molecular and polar substances with a low concentration and toxic effects.
When it is required to separate various harmful pollutants in one unit at the same time, it is necessary to design a filtration unit with AC impregnated at various levels.
Kinds of specially impregnated AC:
AC KR 1 … for the removal of ammonia from gases and air
AC KC 10 … for the removal of acid vapours and gases from air (partially SO2, HCI, SO3, and NOx
AC J 42 … for the removal of sulfanes, hydrogen sulphine, and organic compounds of sulphur from air
AC HS 10 … for the removal of formaldehyde from air
AC JQ 42 … for the removal of mercury vapours from air and gases
AC CCA … for the removal of phosphanes from air
AC RKJ 1 … for the removal of of radioactive methyl iodide
AC ZS 10 … for the removal of amines, alkaline vapours, and ammonia from air and gases
AC KR 4 … for the removal of vapours of ammonia and organic substances of A and K groups
Activated carbon filters shell be used for air filtration of undesirable odors, chemical compounds, solvents and others pollutants.
Main areas of application:
Exhaust from paint shops and spraying booths and from welding units, exhaust from waste water treatment plants, exhaust from nuclear power plants, adsorption of harmful pollutants in the chemical and electronic industry, intake into airport and station halls, removal of odour from kitchens, meat production, intake and exhaust from operating rooms, intensive care units and clean rooms, production of electronics and other areas with occurrence of harmful gases or odour that must be removed – meeting rooms, museums, hospitals, laboratories, computer rooms, printing rooms, filling stations, car parks and garages.
We supply activated carbon cartridges of standard sizes. Cartridges can be made of plastic, galvanized steel or stainless steel.
| ØxL mm | Capacity l | AC weight kg | AC layer mm | min contact duration s | max air volume m³/h | Pressure loss by 100m³/h | Max temperature ºC | Max humidity % |
|---|---|---|---|---|---|---|---|---|
| 145×250 | 2,9 | 1,07 | 26 | 0,10 | 100 | 80 Pa | 60 | 70 |
| 145×450 | 4,3 | 2,0 | 26 | 0,10 | 150 | 80 Pa | 60 | 70 |
| 145×600 | 5,7 | 2,65 | 26 | 0,10 | 200 | 80 Pa | 60 | 70 |
Cartridges can be easily mounted in a special frame made off galvanized or stainless steel.
| BxHxL mm | Number of cartridges |
|---|---|
| 610x610x75 | 16 |
| 305x610x75 | 8 |
| 305x305x75 | 4 |
CARBO filters with activated carbon are specially designed to be mounted on the air pipe or in a ventilation unit. CARBO filters can be fixed on air intake or air outlet pipes. These filters are easy to use, by simply changing prefilter and carbon granular when it is needed.
| Model | Housing | Carbon | Length mm | Weight kg | Carbon weight kg | Diameter ø mm | Carbon bed mm | Max capacity m³/h | Recommended capacity m³/h | Flange ø mm | Pressure diagram |
|---|---|---|---|---|---|---|---|---|---|---|---|
| CAN150 | steel | pelletized | 1500 | 75 | 50 | 400 | 65 | 2400 | 2100 | 315/250/200 | Graph |
| CAN125 | steel | pelletized | 1250 | 61 | 41 | 400 | 65 | 2000 | 1700 | 315/250/200 | Graph |
| CAN100 | steel | pelletized | 1000 | 50 | 33 | 400 | 65 | 1600 | 1400 | 315/250/200 | Graph |
| CAN350 | steel | pelletized | 500 | 27 | 17 | 400 | 65 | 900 | 713 | 315/250/200/160 | Graph |
| CAN366 | steel | pelletized | 660 | 21 | 12 | 300 | 50 | 750 | 700 | 200/160/150 | Graph |
| CAN333 | steel | pelletized | 330 | 11 | 6 | 300 | 50 | 400 | 350 | 200/160/150 | Graph |
| CAN250 | steel | pelletized | 350 | 6 | 4 | 200 | 35 | 325 | 250 |
Activated carbon filters shell be used for air filtration of undesirable odors, chemical compounds, solvents and others pollutants.
Main areas of application:
Exhaust from paint shops and spraying booths and from welding units, exhaust from waste water treatment plants, exhaust from nuclear power plants, adsorption of harmful pollutants in the chemical and electronic industry, intake into airport and station halls, removal of odour from kitchens, meat production, intake and exhaust from operating rooms, intensive care units and clean rooms, production of electronics and other areas with occurrence of harmful gases or odour that must be removed – meeting rooms, museums, hospitals, laboratories, computer rooms, printing rooms, filling stations, car parks and garages.
Factors that affect the performance of activated carbon:
| Air temperature and humidity | The adsorption temperature should not exceed 40 °C. It may be higher in case of impregnated activated carbon. The relative air humidity up to the maximum of 60-80%. |
| Dust particles | Activated carbon is very sensitive to dust particles and, therefore, it is necessary to install effective prefilters in filtration class F7. |
| Air flow velocity | In order to achieve the best possible adsorption, the time of contact of gas molecules in the activated carbon layer must be as long as possible. |
We assemble filtration units with activated carbon and prefilters according to each customer needs. AC filtration units can be assebled with or without the industrial fan.
AC filter panels are mainly used for installation in ventilation systems, as additional filters for removal of unpleasant odors, chemical gases and other harmful gases.
These filters can be assembled with F7 class minipleated material, H11-H13-class HEPA filter material, carbon foam, support mesh and frame.
Filters are manufactured according to the unit measurements.