The Science of Pyrolysis
Pyrolysis of plastic (or thermal depolymerisation) is the breakdown of plastic back to its oil based origin and is and effective, safe and responsible way of removing it out of the environment and transforming it into something useful and valuable.
Plastics are materials composed of long chains hydrocarbon based units which have been derived from crude oil. The simplest example of this is the polymerisation of ethylene/ethene (C2H4) to form polyethylene (C2H4)n. Polyethylene is a common material for plastic carrier bags.
Pyrolysis is the reversal of this process and happens at high temperature without oxygen, in the presence often in the presence of a catalyst. Pyrolysis doesn't break all the bonds evenly to produce the ethylene monomers as before but occurs stochastically to produce a distribution of hydrocarbon products of differing atomic chain lengths which are gas, liquid and solid at ambient temperature. The non-condensable gas product is used as heating fuel for the pyrolysis process itself and the liquid fraction can be fractionated into its constituent fractions which like petrol, kerosene, diesel and bitumen. The final remaining by product is solid charcoal product.
Our Technological Advantages
Our current prototype was designed to intake 200kg+ of plastic waste every hour to produce 15kg of gas, 130kg liquid fuel, 15kg bitumen and 40kg charcoal.
Our process advantages over other existing pyrolysis systems in operation currently are: