Adsorber (AD)

Venjakob's adsorption technology is particularly applied in the treatment of exhaust air from VOC of low and very low concentration. Adsorber (AD) is also used to smooth out pollutant concentration peaks. The adsorption process is based on the adhesion of VOC to a surface of AD resulting in VOC concentration increase. Then hot-tempered air of considerably lower flow-rate desorbs the pollutants from AD surface and streams to RTO, TI or CTO of compact size, where autothermal process can be rapidly achieved due to the high concentration of VOC. The excess of heat can be effectively utilized by application of heat exchanger system.

Adsorber (AD)

Schematic illustration of the process in AD

Exhaust air flow	42.500 Nm3/h
Pollutant type, VOC	Xylene, Isobutanol
Pollutant heating value	36.000 kJ/kg
Pollutant concentration before AD	200 mg/Nm3
Pollutant concentration after AD	3.500 mg/Nm3
Hot air flow (desorption)	2800 Nm³/h
Exhaust air temperature before AD	20 °C
Exhaust air temperature after AD	45 °C
Electrical connection	380-410 V / 50 Hz / 3 Ph +N
Electric power requirement exhaust air fan	6,5 kW
Total installed power consumption	11 kW
Length x Width x Height approx. [m]	2,4 x 2,9 x 3,1
Weight approx.	0,4 t
*data based on the AD 42.0, paint industry