France : CONTINUOUS AND SELECTIVE RECOVERY OF HYDROCARBON FILMS FROM THE SURFACE OF WATER [TendersInfo (India)]

Project cost: 415312 EURO(565945.66 US Dollar)

Project Funding: 141120 EURO(192304.22 US Dollar)

The aim of this project, which in 1981 won for ELF-Aquitaine the Raymond Delaby prize, was to develop a process for the continual selective recovery of hydrocarbons collection on the surface of petrol refinery water/oil gravity separators, in order to limit losses by evaporation and reduce the costs of removing water from the recovered oil prior to recycling.

An oil-recovery drum consists of a cylinder coated with oleophilic material. It is rotated continuously through the surface layer of the water so as to pick up the oil, which is then recovered by a fixed scraper and piped to existing collection systems.

The aim of installing oleophilic dauws on new or existing water/oil separators is to save energy in two ways:

- by recovering water free oil and

- by reducing evaporation due to the reduced residence time of oil on the separator s surface.

country :France