VOC VAPOUR RECOVERY SYSTEMS
HydroCarbon Processes’
Distribution Terminal Line DTL
HydroCarbon Processes offers a range of Vapour Recovery Systems (VRU) for recovery of volatile organic compounds from vapours.
The process is based on the well-known technology of adsorption on activated carbon and regeneration of the activated carbon by vacuum. This technology has proven to be the best available for applications like storage, truck, rail, barge and ship 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.
TM
The Typical Vapours To Be Treated Are
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Gasoline
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Diesel
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E5 Gasohol
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E10 Gasohol
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E20 Gasohol
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E85 Gasohol
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E100 Gasohol
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Methanol
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Benzene
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Toluene
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Xylene
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MTBE
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ETBE
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Naphta
The VRU’s are designed to meet the stringent health and safety requirement set out by European ATEX and Machinery directives.
Emission standards
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150 mg/Nm
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10 g/Nm
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35 g/Nm
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35 g/m loaded product
Key features
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Modular design
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Prefabricated skids makes installation simple
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Energy efficient
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PROCESS DESCRIPTION
The process is based on separation of gasses using activated carbon. The mixture of air and VOC vapour is lead to a carbon filter, where the VOC is retained by adsorption on the carbon, and the clean air passes through the vent to the atmosphere. Only a special selected durable and safe activated carbon is used in our filters.
After a period of typically 10 to 15 minutes, the carbon is saturated with hydrocarbons, and the VOC emission increases slightly. A VOC analyser in the vent detect this, and the control system switches the filter from receiving vapour to regeneration mode.
Vacuum is applied to the filter and strips off the recovered VOC vapour from the carbon. The stripped off VOC vapour is then lead to an absorption column, where the VOC is condensed in a stream of gasoline, or a similar product available in the terminal. While one filter is being regenerated, the other filter is receiving the mixture of air and VOC vapour.
