Can Pyrolysis Oil be Used in Diesel Engines?

Pyrolysis oil, also known as bio-oil or biomass oil, is a renewable energy source derived from the thermal decomposition of organic materials such as biomass, agricultural residues, or waste tire/plastic.
Its calorific value is similar to that of petroleum, it can be used as an alternative fuel for petroleum for industrial heating. So, can pyrolysis oil be used in diesel engines? This article will discuss this issue.

The uses of pyrolysis oil

1. Composition and Properties of Pyrolysis Oil:
Pyrolysis oil is a complex mixture of various organic compounds, including hydrocarbons, oxygenates, and water. Its composition and properties can vary depending on the feedstock used and the pyrolysis process employed. Generally, pyrolysis oil has a high energy content, similar to that of diesel fuel, and contains lower levels of sulfur and nitrogen compounds, making it potentially less polluting.
 
2. Compatibility with Diesel Engines:
One of the key considerations when using pyrolysis oil in diesel engines is its compatibility with the engine's fuel system. Due to its different composition and properties compared to conventional diesel fuel, modifications to the engine or fuel system may be required. These modifications can include changes to the fuel injection system, fuel filters, and fuel pumps to ensure proper atomization, combustion, and lubrication.
 
3. Combustion Characteristics:
Pyrolysis oil has different combustion characteristics compared to diesel fuel. It has a higher viscosity, lower cetane number, and higher oxygen content, which can affect the combustion process. To optimize combustion efficiency and reduce emissions, engine parameters such as injection timing, compression ratio, and fuel-air mixture need to be adjusted accordingly.
 

The uses of diesel oil refined from pyrolysis oil

After the above analysis, it is found that if the pyrolysis oil is to be used in diesel engines, the diesel engines need to be modified. In addition, there is another way to make the pyrolysis oil used in the diesel engine without modifying the diesel engine——to further process the pyrolysis oil.
 
DOING produces and sells waste tire plastic pyrolysis oil distillation machines, which can convert pyrolysis oil into diesel and use it for diesel engines.
 
 

DOING pyrolysis oil distillation machine

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