Pyrolysis Oil is widely used in industries such as Petrochemicals, Forestry and other Energy-Intensive Industries. Since it is a kind of tar, which normally contains too high levels of oxygen to be a hydrocarbon, it also helps in conversion of waste into valuable fuel while reducing carbon footprint.
End-of-life tyres contain a lot of chemical bound energy.
As a result of pyrolysis of waste tyres one obtains: high-energy gas, Pyrolysis oils, carbon black and steel wire. The ratios of the first three products depend on process conditions, mainly on
- The pyrolysis method for recycling used tyres is a technique, which heats whole or shredded tyres in a reactor vessel containing an oxygen free atmosphere and a heat source.
- In the reactor the rubber is softened after which the rubber polymers continuously breakdown into smaller molecules.
- These smaller molecules eventually vaporize and exit from the reactor.
- These vapors can be burned directly to produce power or condensed into an oily type liquid, generally used as a fuel.
- Some molecules are too small to condense. They remain as a gas, which can be burned as fuel.
- The minerals that were part of the tyre, about 40 to 45 % by weight, are removed as a solid.
- When performed well a tyre pyrolysis process is a very clean operation and has nearly no emissions or waste.
- The properties of the gas, liquid and solid output are determined by the type of feedstock used and the process conditions.
- For instance, whole tyres contain fibers and steel. Shredded tyres have most of the steel and sometimes most of the fiber removed.
- Batch wise Process is done by tyre pyrolysis.
- The steel can be removed from the solid stream with magnets for recycling. The remaining solid material often referred to as “charcoal”.
Pyrolysis oil (Fuel oil – 40 to 45%)
- The essential product of tyre pyrolysis process is pyrolysis oil referred as fuel oil (40 to 45 % of total quantity feed) which is used as a fuel component for heating in fire chamber.Pyrolysis oil has flash Point between 60 to 93.3 °C.
- Purest quality of pyrolysis oil comparable to industrial diesel: selling price comparable to industrial diesel LDO( light diesel oil)