Pyrolysis of oils involves the heating process with or without
catalyst to convert one organic substance into another
. It was previously reported that biodiesel
fuel produced through a pyrolysis process or known as biooil
is suitable for diesel engines; however, low-value materials
are produced due to the elimination of oxygen during the process
. Oxygen elimination is done
to upgrade the fuel produced so that it will be economically
attractive and acceptable. Undesirable properties that sometimes
restrict the application of biodiesel produced through
this process are low heating value, incomplete volatility, and
instability. This process requires
expensive equipment and has several advantages such as
lower processing cost, simplicity, less waste, and no pollution
. It was suggested by
that the pyrolysis method is suitable for WCO processing.