Waste Oil Catalyst

A waste oil catalyst is what separates genuine diesel production from simply heating used oil, because the right catalyst directs the chemical reactions that crack heavy hydrocarbons into clean, usable fuel. Without it, the output is smoky, unstable, and damaging to engines.

Shape-Selective Cracking

Zeolite catalysts such as ZSM-5 use microscopic pores to cut long hydrocarbon chains into diesel-range molecules with high selectivity. This shape-selective cracking maximises diesel yield and produces a fuel with consistent, stable combustion behaviour.

Cleaning With Hydrogen

Nickel-molybdenum and cobalt-molybdenum catalysts perform the hydrotreating reactions that remove sulfur, nitrogen, and heavy metals. They turn raw product into low-sulfur diesel that meets modern fuel standards, with cobalt-molybdenum offering a lower-pressure, more economical option.

The Supporting Structure

Alumina provides the high-surface-area support that disperses the active metals and keeps the catalyst bed stable, while silica-alumina supplies the acidity needed to crack sludge-like, oxygen-rich compounds. Together they determine how long a catalyst lasts and how well it performs.

Matching Catalyst to Scale

The right waste oil catalyst depends on the operation. Large refineries pair zeolite cracking with nickel- or cobalt-molybdenum hydrotreating to hit regulated diesel specifications, while smaller units balance cost using zeolite with alumina or silica-alumina for local fuel markets.

Learn More:

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

Specify the Right Catalyst System

Matching the catalyst to the feedstock and target fuel standard determines both yield and diesel quality.

Klean advises operators on catalyst selection and integration for efficient waste oil to diesel conversion.

Considering a waste oil catalyst project?

Contact Klean Industries about waste oil catalyst » GO.