Renewable Diesel Hydrotreating

Renewable diesel is a drop-in alternative to petroleum diesel produced from vegetable oils, animal fats, and waste greases. The transformation hinges on renewable diesel hydrotreating, which uses hydrogen to strip oxygen and other impurities and rebuild the molecules into paraffinic hydrocarbons.

Turning Triglycerides Into Hydrocarbons

Unlike biodiesel’s simple ester swap, renewable diesel hydrotreating performs hydrodeoxygenation, removing oxygen as water, alongside hydrodesulfurization and hydrodenitrogenation that eliminate sulfur and nitrogen. The output is chemically close to fossil diesel and drops straight into existing engines.

The Reactions That Matter

Hydrogen over a catalyst drives the key chemistry: oxygen leaves as water, sulfur as hydrogen sulfide, and nitrogen as ammonia. Where larger molecules persist, controlled hydrocracking shortens them, improving the cold-flow and energy profile of the finished fuel.

Catalysts and Unit Design

Nickel-molybdenum and cobalt-molybdenum catalysts handle desulfurization and deoxygenation across varied feedstocks, while precious-metal catalysts excel on oxygen-rich inputs such as algae oil. Reactor design, hydrogen supply, and catalyst management determine how clean the final diesel runs.

A Cleaner Drop-In Fuel

Renewable diesel hydrotreating yields a stable, low-emission fuel with feedstock flexibility that insulates producers from single-source supply risk. Klean Industries provides the hydrotreating plants and engineering that make this conversion reliable at scale.

Learn More:

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

The shortest route to clean diesel is a hydrogen-driven one.

Hydrotreating unlocks a drop-in fuel from fats and waste oils, with better stability than traditional biodiesel.

Klean Industries designs and delivers the hydrotreating units that convert renewable feedstocks into specification diesel.

Considering a renewable diesel hydrotreating project?

Contact Klean Industries about renewable diesel hydrotreating » GO.