VOC3PLUS^®

VOC3PLUS^®: on-site reactivation of carbon

Activated carbon is often used to remove low VOC (volatile organic compound) concentrations from the air whereas in case of higher concentrations an afterburner is frequently used. However, in case of large air flows the daily emissions can be quite high, even for low VOC concentrations. The activated carbon is consequently saturated faster and thus needs to be renewed more frequently.

On-site reactivation to avoid costs

To avoid excessive costs for the replacement of activated carbon, Desotec and a few of its partners developed the VOC3PLUS^® on-site regeneration system. The system connects a small afterburner with the Desotec air filters. In this manner it combines:

1. adsorption;
2. desorption;
3. autothermal catalytic oxidation (combustion) of the VOCs.

The VOC3PLUS^® technology is based on periodic reactivation of the activated carbon in one compartment of the compartmentalised activated carbon filter. The solvent-contaminated air to be treated is in the meantime sent through the other compartments of the system.

View of the isolated compartments of the activated carbon filter (with pipes and afterburner in the background)

VOC3PLUS^®: the benefits

• Activated carbon bed life of several years.
• No start up-period and continuous operation: no stops required for carbon replacements.
• Autothermal system requiring little or no additional fuel.
• BAT technology for air flows with low VOC concentrations.

References and applications

Spray cabins, paint industry, furniture industry, chemical and food industry, soil remediation etc.