Vapour Recovery System- Low VOC Emission

VOCZero’s Thermal Regenerated Activated Carbon System, TRAC

Vapour-Recovery-UK Experts

 

VOCZero offers a range of Vapour Recovery Systems (VRU) for recovery of relatively low concentrations of volatile organic compounds from vapours. These systems are in particular well suited for areas, where extreme low VOC emission in the ppb-ppm level is required, like in many petrochemical facilities.
The process is based on adsorption of VOCs on activated carbon followed by steam regeneration of the carbon. This technology is valued to be among the best available, for applications like storages and loading operations.

The design and selection of parts are made to achieve a durable, safe and efficient process plant, and are based on international standards recognised in the oil and gas industry, such as ASME VIII, ASME B31.3, EN 60079 & EN 1127.

Vapour-Recovery-UK Experts

The typical vapours to be treated are:

Petrol Xylene
Diesel MTBE
E5-E100 Gasohol (Ethanol) ETBE
Methanol Naphtha
Benzene Crude Oil
Toluene Gas Condensate

 

The VRU’s are designed to meet the stringent health and safety requirement set out by European ATEX and Machinery directives.

 

VOC Emission standards   Key features
1 ppm   Modular design
150 mg/Nm   Energy efficient
100 ppm   Prefabricated pipes and steel makes installation simple
300 ppm    
Application specific emission standard    

 

PROCESS DESCRIPTION

Low VOC concentration vapour from storage tanks or other VOC handling facilities, typically having VOC concentration in the range of 1 – 4%vol., is collected in a sealed vapour header, and passed to one of two activated carbon filter in the VRU.

The VOC vapour will flow down through the activated carbon layer, where the VOC molecules are adsorbed onto the surface of the activated carbon, while the inert gas/air exits the filter vessel at the bottom.

When the activated carbon reach saturation, the regeneration process is initiated.

 
VOC Emission standards   Key features
1 ppm   Modular design
150 mg/Nm   Energy efficient
100 ppm   Prefabricated pipes and steel makes installtion simple
300 ppm    
Application specific emission standard    

 

The VOC vapour will flow down through the activated carbon layer, where the VOC molecules are adsorbed onto the surface of the activated carbon, while the inert gas/air exits the filter vessel at the bottom.

When the activated carbon reach saturation, the regeneration process is initiated.