VOC emissions reduction effectively managed by Sonatrach Raffineria Italiana thanks to SurfCleaner technology.
Sonatrach refinery in Augusta on Sicily is one of the largest refineries in Italy. They use API basins to clean their oily wastewater from the plant and needed a solution to clean water containing contaminants traces, such as “oily paraffins”, as well as gasoline, gas oil, lubricant oils, fuel oils, and diesel.
To achieve a further VOC (Volatile Organic Compounds) emissions reduction, the refinery needed a continuous and automatic removal of the water surface contaminants in the API basins. This required an oil removal rate of 2m3 per hour, which is 25% of the SurfCleaner capacity.
SurfCleaner recovers 100% of the oil, with a water content of less than 0.5%
SurfCleaner is a self-adjusting, floating oil skimmer separator hybrid that is suitable for continuous
operation. The SurfCleaner has a separation capacity of 8m3 per hour and a maximum flow capacity of 50m3 per hour. The installation environment requires the SurfCleaner to be ATEX certified for Zone 0.
The SurfCleaner technology is unique; by combining variations in inflow velocity and direction with gravimetric separation, the process is very efficient – keeping pollutants from accumulating on the water surface and therefore help minimizing VOC emissions.
The design makes it possible to recover 100% of the oil, with a water content of less than 0.5%. The low water content allows Sonatrach to re-refine the separated oil from the wastewater in light of the new concepts of circular economy within a path of sustainability that the company pursues in terms of values for several years. And the latter was an important factor behind making the decision to buy SurfCleaners.
After the installation in 2019, Sonatrach says:
2 x SCO 8000 ATEX
2 x 8,000 l/h