Re-refining used lube oil

Key Characteristics

  • Sequoia’s process technology for recycling used lubricating oils is based on distillation, adsorption and hydrotreating processes.
  • Specially designed evaporators preserve oil quality and prevent corrosion and fouling of equipment.
  • Our evaporators have no moving parts and do not require cranes for their cleaning and maintenance
  • Expect Highest product quality and yields, including those for intermediate products and byproducts.
  • For given product quality, lowest capital & operating costs compared to any other technology supplier.
  • Sequoia has reference projects on 4 continents of the World.

Useful Numbers

Mass balance  
In
Waste Oil 100
Hydrogen 0.2
Water 3.0
   
TOTAL 103.2
Out
Base Oil 75
Fuel Byproduct 7.0
Wastewater 8.0
Residue 13
Off-gas 0.2
TOTAL 103.2
 
Consumables for processing.
1m³ (1000 liters) of used/waste oil
Parameter
Electricity
Fuel
Water(including cooling)
Catalyst
Unit
kWh
kcal
liter
Kg
Quantity
90
180000
700
0.2

Economics


The cost for electricity, fuel, water, wastewater disposal and chemicals will be $15-30 per m³ (US$ 0.06-0.13 per US gallon) of used oil processed.

Direct labor will be 10-15 persons.

The land requirement for a fully integrated facility will be 1 acre (4000 m²) - 7 acre (28000 m²).

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What is recycling or “re-refining” of used oil? And what is not?

Lubricants are prepared by mixing additives into lubricating oil base stock (or simply called “base oil” or “lube oil”). Spent lubricants i.e. used oil has the following composition:

True Recycling (Re-refining) of used lubricating oil means separating the “Lube Oil” from everything else in the diagram above and purifying it to be meet International standards. In short, recover and purify base oil.

Filtering used oil to remove solids or drying used oil so it burns better is NOT recycling!

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Ph +1 704 780 1089
Ph +1 704 780 1710
info@sequoia-global.com
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