Re-refining of Used Oil using vacuum distillation/clay treatment
Re-refining of Used Oil using vacuum distillation/clay treatment
(OP)
Hi,
I am chemical engineer, My company is going to start a new project of re-refining of used oil, process is Vacuum distillation/clay treatment. We will produce API G(I) base oil. Please share with me your experiences and important links to get prepared for this project.
Thanks
I am chemical engineer, My company is going to start a new project of re-refining of used oil, process is Vacuum distillation/clay treatment. We will produce API G(I) base oil. Please share with me your experiences and important links to get prepared for this project.
Thanks





RE: Re-refining of Used Oil using vacuum distillation/clay treatment
RE: Re-refining of Used Oil using vacuum distillation/clay treatment
vacuum distillation will separate the liquid impurities.
clay treatment will separate solid impurities and entrained water.
RE: Re-refining of Used Oil using vacuum distillation/clay treatment
1. Storage of incoming spent lubes should take care of the malodors (stench); a fact that would oblige selecting a site far away from populated areas.
2. A filtration or centrifugation step followed by atmospheric distillation are recquired prior to the vacuum step to eliminate solids, water and lights.
3. The vacuum distillation should better be carried out with wiped film evaporators.
4. The vacuum residue cannot be burbed "as is" in a fired heater because of the corrosion/erosion of burner tips.
5. Activated clay polishing (whether batch or continuous) may present waste disposal problems.
6 Modern plants replaced clay treatments with hydrofinishing.
RE: Re-refining of Used Oil using vacuum distillation/clay treatment
"Refining Used Lubricating Oils" by J.Speight and D.Exall
"Design Aspects of Used Lubricating Oil Re-Refining" by F.Awaja and D.Pavel
If you cannot find them as hard copies, you can read them online at:
https://books.google.ro/books?id=IHzNBQAAQBAJ&...
https://books.google.ro/books?id=QNqnVyKYeVAC&...
Dejan IVANOVIC
Process Engineer, MSChE
RE: Re-refining of Used Oil using vacuum distillation/clay treatment
Please guide me as a process engineer to maximize the yield what will be the important influential factors and constraints that i have to give preference. In short is there any priority list ? I think only an engineer who is currently working in re-refining company can give the answer but if any other process engineer share his experience that will be appreciate.