Can pyrolysis plant be used to recycle waste oil into diesel?

Can pyrolysis plant be used to recycle waste oil into diesel? The answer is no, if you want to recycle waste oil into diesel, we need to use a specific machine: Waste oil to diesel distillation machine. Pyrolysis plant and distillation machine have different designs, functions, and can process different raw materials. The following is a brief introduction about the difference between these two machines:

Item	Pyrolysis plant	Distillation machine
Machine display
Recycled raw material	Solid&hazard waste(tire, plastic, oil sludge, aluminum plastic, domestic waste, etc.)	Liquid waste oil, crude oil, pyrolysis oil, etc.
Work principal	Pyrolysis involves heating waste oil in an oxygen-free environment to break it down into smaller molecules;	Distillation heats the waste oil to separate its components based on their boiling points;
Machine function	Recycle solid&hazard waste to fuel oil and carbon black	Refine waste oil to diesel and asphalt
Reactor design	Horizontal reactor(realize fully pyrolysis effect)	Vertical reactor(convenient to feeding and discharging automatically)
Work process	Heating- pyrolysis- cooling- collecting	Heating -distillation -catalysting -cooling -collecting

For waste oil recycling, there are two types of DOING waste oil to diesel distillation machine for your reference. One uses two liquid chemicals(H2SO4 and NaOH) to purify waste oil. If you can buy these two chemicals in your local area at a cheap cost, choosing this type is ok. The other one uses solid catalysts which are our patent invention and can’t be bought from other suppliers. So if you can't purchase the liquid chemicals at a cost-effective price, you can choose this type. For this type, one ton of catalyst can be used for about half a year without replacing, and it is also safer and efficient.

Two types of DOING waste oil to diesel distillation machine

Now let's take the solid catalyst type as an example to see the entire workflow of recycling waste oil into diesel:

1. Pour waste oil into our vertical distillation reactor. Due to waste oil is the liquid material that is different from the commonly solid waste, so we adopt the vertical design, whose heating area is more uniform than the horizontal reactor. Then open burners to heat the distillation reactor. Under high-temperature heating to remove impurities, and further distill the waste oil into oil gas.

2. Oil gas goes through the catalyst system and cooling system, we can obtain the liquid diesel oil directly.

Work flow of solid catalyst type distillation machine

3. If you want to obtain more clean diesel, you can decolorize it with white clay. Lastly, the distillation oil that has been decolorized and deodorized is then filtered through a leaf filter to produce a bright and pure diesel fuel.

The final diesel can be used as the alternative fuel for diesel trucks, trailors, ships, heavy machinery and diesel generators, engines with speed below 2000rpm, etc.

Applications of obtained diesel oil

DOING has over 14 years experience in researching and manufacturing pyrolysis plants and waste oil distillation machines, and we can provide customized solutions and comprehensive services to help you recycle various waste in your life. For more information, just feel free to contact us!