SLOPS OIL / WATER GRAVITY SEPARATION
SLOPS OIL / WATER GRAVITY SEPARATION
(OP)
Hello,
Is it a correct assumption that the maximum phase separation that can be achieved is the solubility of water in oil and oil in water ?
Does centrifuge phase separation achieve separation levels higher than gravity separation?
regards,
roker
Is it a correct assumption that the maximum phase separation that can be achieved is the solubility of water in oil and oil in water ?
Does centrifuge phase separation achieve separation levels higher than gravity separation?
regards,
roker





RE: SLOPS OIL / WATER GRAVITY SEPARATION
RE: SLOPS OIL / WATER GRAVITY SEPARATION
RE: SLOPS OIL / WATER GRAVITY SEPARATION
Could you point me to a vendor that will promise that performance? We struggle to get below 30 ppm.
RE: SLOPS OIL / WATER GRAVITY SEPARATION
http://infohouse.p2ric.org/ref/31/30416.pdf
and
http://infohouse.p2ric.org/ref/31/30417.pdf
There is also the single page at
http://www.larive-environnement.fr/Site%20Larive%2...
A company named Graver Water Systems [ http://graver.com/ ] purports to supply these coalescers, which are capable of removing oil from condensate down to a purity of 1 part per million - - but they've never responded to my e-mails; maybe you'll have better luck...if you do, let us all know!
RE: SLOPS OIL / WATER GRAVITY SEPARATION
http://spel.com.au/products/puraceptor/?gclid=CPWZ...
There are other specialised separators, I remember a brand Vortoil ( I have designed for them some 15 years ago in Australia a 'high tech' oily water separator in two stages down to 1 ppm). The process designer is still alive, but retired long ago.
Need a bit of work on the internet and also with some reputed fabricators.
Cheers,
gr2vessels
RE: SLOPS OIL / WATER GRAVITY SEPARATION
The separation of the distinct oil-water phases by gravity can be predicted using a Stokes law analysis. (See Perry's). To do that you need some idea of the oil droplet size. You can speed up the separation by, again, time love and tenderness (ha - time, heat, and chemical) or by increasing the gravity, which is what the hydrocyclone does. Or by introducing tiny gas bubbles to agglomerate the oil particles together so the Stokes law forces work faster (see: WEMCO depurator, or induced/dissolved gas flotation cell).
Yes - Centrifugal separation will achieve better separation than (unassisted) gravity alone.