
Filters for Volatile Organic Compound Control
MIAB FD activated carbon filter
This type of purification system is suitable for high air volumes with low concentrations of solvents. Typical volume in the range of 15,000 – 250,000 m3/h and concentration range 0 – 1000 mg/m3
The system consists of two parts: an activated carbon filter with a main fan adsorption unit and a catalytic oxidation unit. Purification takes place in two stages: 1. The air is purified and the solvent is concentrated in the carbon filter.
When the system is started, the air output of the main fan is automatically adjusted to draw process air from the emission points connected to the system. The main fan takes in the contaminated air and passes it through the carbon filter. The solvent is adsorbed by the activated carbon and the air is purified.
2. Regeneration of the carbon filter and destruction of the solvent in the catalytic unit. When the carbon becomes saturated with solvent, the air flow in the machine process is shut off, and it is then regenerated using hot gas from the catalytic oxidation unit.
During continuous operation, a second activated carbon filter takes over the adsorption process. During regeneration, the hot gas from the catalytic unit heats the carbon to release the solvent and carries the solvent into the oxidizer. Since the gas flow rate is smaller than the process air, it becomes highly concentrated, destroying the
solvent vapors without additional fuel or energy. This is very important for achieving low energy consumption.
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