Used oil Re-refining Plant

Waste Used Lube oil Recycling re refining Processing Project plant

Everyone hopes to find a usefulness for waste products, such that nothing really goes to waste at all. In this article, All Global Solutions (AGS) will like to broaden your smile with the Waste oil, Used oil, Motor oil Recycling re refining Plant Process.

The Black, Waste or Used Lube Oil or Motor Oil are then said to be used or contaminated type of automotive lube oil and industrial used oil. Waste Oil is simply waste oil, any petroleum or synthetic oil that has already finished its work in the engine it was used to lubricate. Used Lube Oil is defined as the petroleum-derived or synthetic oil which remains after the application of Lube Oil in lubrication, cutting purposes, etc. Lube Oil has a lot of usefulness for our machines, not just cars but other machines such as lawnmowers, and many others. It becomes Waste or Used Oil after it has been used, a time when elements (impurities) such as water, metal scrapings, dirt etc., must have been mixed with it. The build-up of temperature degrades the lubricating oil, thus leading to the reduction in properties such as; Viscosity, Specific Gravity, etc. As a result, the waste/used lube oil doesn’t perform as well as the virgin motor oil. Hence, such Waste Oil is replaced with New Lube Oil or re-refined oil, and that ends the work of the now waste used oil in most cases.

Used Motor Oil or Waste Lube Oil can really be useless and toxic. A drop of Used lube oil can contaminate thousands and thousands of gallons of water.

  • It sticks to metals,
  • It is slow to degrade,
  • It is the major ingredient of oil contamination of waterways and
  • It ends up polluting sources of drinking water.


This suggests that it must be properly disposed of because it has more harmful possibilities than usefulness when unrefined, What if it can be re-refined, recycled and made fit for re-use? Awesome yeah? Before I go into the Waste Oil Plant Process, let me differentiate between the three oil types. Not assuming if you do or do not know it all, the three types of oil are VIRGIN OIL, RECYCLED OIL AND RE-REFINED OIL.

As the name connotes, VIRGIN OIL is simply virgin oil i.e. it is crude oil that has never been used since it has passed through the refining process. It is the most used, and it sets the standard for oil quality generally.

RECYCLED OIL is simply used oil that has passed through a filtration system (maybe a Used Oil Recycling Plant) to remove any and every insoluble impurity. It does not go back to being pure again, and this is because the impurities removed does not include chemical contaminants. It can however be re-used.

RE REFINED OIL is recycled oil that goes through more processes, removing both soluble and insoluble impurities. It goes through the same distillation stack that is used in making virgin oil so that the water molecules and other contaminants are removed. It could be rated as the same base oil standard as the virgin oil if API qualifies it. This is what our Used Oil Recycling Plant does.

Did you see that? Re-refined Oil becomes the same as Virgin Oil; meaning it can be re-used!

All Global Solutions (AGS) is basically expert and richly experienced in Used Oil Recycling/Re-Refining Or Motor Oil Recycling Engineering Mechanism & also provides investment to projects in the form of plant machinery & technology CAPEX in various regions like Africa, Saudi Arabia, UAE, Central asia, North and South America for more info submit the project report after evaluating the project we can plan the investment package.

Process Offered By All Global Solutions (AGS) For Used And Waste Oil Recycling Re refining technology by modern refinery of crude oil .

All Global Solutions (AGS) Company is an esteemed company based in India & USA. We offer technical solutions and projects related primarily to oil & gas processing. We are involved in setting up TurnKey projects overseas, Designing, Engineering, Supply & Installation and Construction of quality and efficient Plants and Projects. We wish to create pollution minimized atmosphere by following our mission of protecting nature with innovative ideas for Recycling Waste and Used Lube Oil, through our Waste Oil Recycling Plants.

We make use of the Wiped Film Evaporator (WFE), a Short path distillation, followed by Solvent extraction or Mild Hydrofining finishing process involved for the recycling (Re-refining) of Used/Waste Lube Oil to Base Oil group I, group II and group II+ with zero environmental waste; no air, no solid and no liquid pollution. Perfect! The WFE is ideally suited to process hard-to-handle, heat sensitive and viscous materials. These are just some of the many and varied products that the WFE processes. It is designed to carry out deodorization, distilling, concentration, reboiling, solvent recovery and stripping, then re-refined oil is ready for lube oil blending stage.

All Global Solutions (AGS) offers tailor-made designs & technology for Waste Lube oil projects, Our Turnkey project provisions include:

  • Basic & Detailed Engineering.
  • Procurement of all equipment.
  • Construction and Erection of complete project.

Process Description of Used Lube oil Re-Refining Plant.

Used lubricating oil to SN150 grade Light Base Oil & SN500 grade Heavy Base Oil in distillation + wiped film evaporator plant Used Oil Refining Process consists of two sections:

  1. Pre-treatment (De-metallization /Ash Removal)
  2. Separation of light ends by Distillation
  3. Separation of oil fractions by thin film evaporation.
  4. Finishing stage with option of Solvent / Hydrofining treatment process

A) Separation of light ends by Cloumn tower:
Dehydrated and filtered used lube oil from storage is pumped by the feed pump(P-101A/B) through the filters (ST-101 A/B) to the distillation column (C-101).Filters are provided as additional step to remove any solids from the feed.
Distillation Column (C-101) is operated under vacuum and used to separate light fraction from the used lube oil. In distillation column, diesel oil (and water) is obtained as a top product which is condensed and collected in the receivers by gravity.
Bottom product from D-101 is fed to the thin film evaporation system for further separation through WFE-I feed pump.
Cooling water is used in condenser to condense of top vapors from column and hot oil (thermic fluid) is used in Reboiler shell as heating medium.

B) Separation of oil fractions by Wiped thin film evaporation:
Thin film evaporation system consists of two thin film evaporators, W-101 & W-102 to recover SN-150 & SN-500 grade base oil respectively. Thin film evaporator consists of vertical cylindrical surface enclosed in a heating jacket with an internal rotor. Rotor distributes feed in the form of the thin film layer on the heated wall by means of a wiper blade. The internal condenser is provided to condense the vapors generated by the hot surface. W-101 is operated at 1 – 2 Torr vacuum & 280◦ C heating temperature by thermic fluid in jacket. The feed free from diesel from column bottom is fed to WFE-1, (W-101) where SN-150 is obtained as a product and collected in product receivers and residue in residue receivers by gravity. SN-150 is transferred to main storage tank by pump.Residue from W-101 is pumped & fed to the WFE-2 (W-102) by rotory gear pump. In W-102 SN-500 is obtained as a product and collected in product receiver tank and residue in residue collection tank by gravity. W-102 is operated at 0.1 Torr vacuum & 310◦ C  heating temperature by thermic fluid in jacket.

C) Finishing stage with option of Solvent /  Hydro-fining treatment process –
In This stage come the last filtration process which take place by Mixture of solvents which improve the color & smell of base oil , The solvent which we are providing is reused for 300 cycles .the result is that it ways cost cheaper then regular solvent available in market, We use specific equipment for filtration process that comes along with regenerate process, if the client is looking for ultimate western quality of base oil group 2+ oil we can go with Hydro-fining finishing process.

Used Lube Oil Re-Refining Process

Technology code ARS-703 – High Vacuum Distillation using Wiped Film Evaporation(WFE) and Solvent Treatment Technology.

Lube Oil & Used Lube Oil

Lube Oil

Lubricating oil are viscous liquids used for lubricating moving parts of engines and machines.

Eg. Engine oils, gear oils, hydraulic oils, turbine oils, grease etc.

Used Lube Oil

Lubricating oil are viscous liquids used for lubricating moving parts of engines and machines.

Eg. Engine oils, gear oils, hydraulic oils, turbine oils, grease etc.

Major Compositions in Used Lube Oil

Our Re-refining Process Flow

Used Lube Oil From Storage

Used Lube Oil From Storage

Heavy Soilds Removal

Heavy Soilds Removal (Sedimentation)





Separation of Base Oil by Wiped Film Evaporator

Separation of Base Oil by Wiped Film Evaporator

Solvent Treatment (Color & Order Improvment)

Solvent Treatment (Color & Order Improvment)

Step I: Dehydration & Defueling

Step II: Light Lube Oil Separation (SN-150) Wiped Film Evaporator WFE-1

Step III: Heavy Lube Oil Separation (SN-500) Wiped Film Evaporator WFE-2

Re-refined Used Lube Oil & Solvent Extraction (To color & odor remove)

  • Then a liquid extraction process is done in the presence of solvent N-Methyl pyrrolidone (NMP).
  • The NMP is an aromatic selective solvent which removes some color and odor.
  • Also it is able to extract all unwanted aromatic contaminants present in lubricating oil fraction.
List of Major Equipment’s
  • Used Lube Oil Intermediate Feed Storage Tank
  • Preheater
  • Column (Dehydration & Defueling)
  • Condensers
  • Reflux & Separator Drum
  • Reboiler
  • Holding Tanks
  • Wiped Film Evaporator (WFE-1 & WFE-2)
  • Receivers
List of Utility Equipment’s & Accessories
  • Thermic Fluid Heater
  • Cooling Tower
  • Vacuum System
  • Pumps
  • Instruments
  • Filters & Strainers
  • Valves
  • Piping & Fittings
Codes & Standards: Design, Mfg & Testing

ASME: American Society of Mechanical Engineers

API: American Petroleum Institute

TEMA: Tubular Exchanger Manufacturer’s Association

BIS: Bureau of Indian Standards

EN: European Standards

–Other Standards.


The input product for this Waste Lube Oil Plant process includes all kinds of waste or used lube oil; gear oil, engine oil, hydraulic oil, etc. After the process, our output product is Base oil; 75% to 80% of Base Oil Group 1 and 2, with two cuts; SN150 and SN500, 7% of diesel, 3% of water and 10% of asphalt.

Let me quickly mention that Lubricants are made by mixing additives into base oil or lube oil (lubricating oil base stock). Note that True Recycling or Re-refining of Used Lube oil means the separation of the Lube Oil from everything else in the composition of the Used Lube Oil (which includes; spent additives – detergents, dispersant, pour point depressant; water; sludge – combustion product, crankcase, engine and handling dirt; and fuel) and purifying it to meet International Standards. In a nutshell, to correctly recycle and re-refine is to purify and recover base oil.

Filtering Waste Used Lube Oil in order to do away with solids or drying Waste Used Lube Oil to the end of making it burn better is NOT recycling!

Now, to the How of this process. We believe we should let you know how we turn you Used Oil to Base Oil Groups 1 and 2. Waste/used Lube oil is recycled at re-refineries. The input product must first be examined to determine if it is suitable for re-refining. After it’s suitability has been confirmed, it is dehydrated and the distillation is treated before it is allowed to be used by people in the environment. Dehydration of the Used Oil also removes the remaining light fuel, which can however, be used to power the refinery, and additionally captures ethylene glycol for re-use in recycled antifreeze.

After this step, the industrial fuel is removed from the used oil, then vacuum distillation removes the lube cut (this means the fraction that is suitable for reuse as lubricating oil) leaving a heavy oil that consists of the used oil’s additives and other by-products such as asphalt extender. The lube cut then undergoes hydrotreating, or catalytic hydrogenation to get rid of the remaining polymers and other chemical compounds and saturate carbon chains with hydrogen so that it can be stable for a longer period.

Next is the final separation of the oil (also fractionating). Fractionating divides the oil into three separate oil grades:

  1. Light viscosity lubricants suitable for general lubricant applications,
  2. Low viscosity lubricants for automotive and industrial applications, and
  3. High viscosity lubricants for heavy-duty applications.

The Output at this juncture is called to as re-refined base oil (RRBL).

The Last step is to blend additives into the three grades of oil products to produce final products with the right detergent and anti-friction qualities. Then each product is then tested again for quality and purity before being released for sale to the public.


OFF GASES: The process will produce about 10 Kg/hr of off-gases from the exhaust of the vacuum pump. The exhaust gas doesn’t go into the air to cause pollution. Instead, the exhaust from the Used Lube Oil Plant will be injected into a specially designed scrubber which will ensure that any volatile organic compounds will be absorbed and the plant has no foul odor around it. This ensures that there is no air pollution, not even the slightest smell!

RESIDUAL SOLIDS: Residual solids from the Used Lube Oil will remain in the evaporator bottoms, which will be sold as a  6 industrial boiler fuel or asphalt extender.

Extract: This can be used as fuel in the plant or can be sold outside as a fuel or base oil for sodium-based grease manufacturing.

WATER: The water, if any of the original waste oil (majorly in waste oil, the water of 4- 5% is expected) is taken to a specially designed distillation system . All the water will be distilled off and the remaining residue will be mixed with Asphalt residue coming from the distillation plant. The water thus recovered during the process of the Waste Oil Recycling will be used for watering the trees and plants in the factory premises.


Without a doubt, it will be widely accepted for Waste oil to be made fit for use again than to dispose it on the earth, polluting everywhere with it! This will reduce wastage, and also be of great benefits to the environment. Recycled Waste Used the motor oil can be re-refined into new Virgin oil or Base Oil processed into fuel oils and used as raw materials for the petroleum industry.

Used oil must be managed properly by local waste management authorities or automotive repair shops to prevent contaminating the environment. Used oil filters pose similar waste concerns. If properly drained, they can be safely recycled or disposed of.

Here are some of the many reasons to recycle Waste Used Oil and use it again.

  • Waste Used Oil pollutes Soil and Water, recycling it and making it fit for use stops it from doing so.
  • Motor oil is a very valuable resource because it does not wear out. What happens to it is that it gets dirty and contaminated during use. Hence, recycling it saves a valuable resource.
  • Producing base stock directly from crude oil consumes a lot of energy, but to produce re-refined base stock requires quite lesser energy.
  • Re-refined Oil works as perfectly as virgin Oil would. One gallon of used motor oil provides the same 2.5 quarts of lubricating oil as 42 gallons of crude oil.