Used Oil to Diesel

Millions of gallons of used lubricating oil are discarded every year, polluting soil and water and wasting energy that could instead power industry and transport. Recovering that oil and converting it to diesel turns a costly liability into a renewable fuel source with real and growing market value.

First, Make It Clean and Dry

The journey starts well before conversion. Collection networks and drop-off points gather the oil, then gravity separation, centrifugation, and filtration remove solids, metals, and water. Dehydration is essential because residual water invites corrosion and microbial growth and destabilises the finished fuel, so a dry, clean feedstock is an absolute prerequisite for every downstream step. Clean feedstock also protects downstream equipment and catalysts, two quiet benefits of sound preparation. Skipping dehydration is a common failure that quietly shortens the life and quality of the finished fuel.

Three Paths from Oil to Fuel

Re-refining treats and distills the oil to strip contaminants and separate fractions, yielding base oil that can be blended into fuel. Pyrolysis applies high temperature to crack long hydrocarbon chains into shorter diesel-range molecules, with gasoline and naphtha as valuable byproducts. Transesterification reacts suitable oils with an alcohol to form biodiesel, a cleaner-burning option that does not suit every feedstock or blend specification. Each route has a different energy profile, yield, and product, so the choice is rarely obvious on paper.

Unlocking the Potential

Recovered diesel can reduce reliance on fossil fuel and trim greenhouse gas emissions, but its widespread adoption depends on better process economics, supportive regulation, and growing consumer confidence in the fuel itself. Klean Industries helps clients select the conversion route that best fits their feedstock profile and the fuel standards of their local market. Getting feedstock and specification aligned early avoids expensive rework after the plant is commissioned. Robust collection is just as critical, since even the best conversion technology sits idle without a steady supply of oil.

Learn More:

• Feasibility Studies for Waste-to-Value Projects
• Turn-Key EPC Delivery
• Plant Design & Engineering
• Facility Efficiency Upgrades
• Resource Recovery Projects

Turn Waste Oil into a Real Fuel

The route you pick, re-refining, pyrolysis or biodiesel, drives both fuel quality and payback.

Klean Industries delivers feasibility studies and turn-key plants for waste oil to diesel conversion.

Considering a waste oil to diesel project?

Contact Klean Industries about waste oil to diesel » GO.