What is waste tire pyrolysis?

a> The pyrolysis method for recycling used tires is a technique which heats whole or shredded tires in a reactor vessel containing an oxygen free atmosphere and a heat source.
b> In the reactor the rubber is softened after which the rubber polymers continuously breakdown into smaller molecules.
c> These smaller molecules eventually vaporize and exit from the reactor.
d> These vapors can be burned directly to produce power or condensed into an oily type liquid, generally used as a fuel.
e> Some molecules are too small to condense. They remain as a gas which can be burned as fuel.
f> The minerals that were part of the tire, about 40 to 45 % by weight, are removed as a solid.
g> When performed well a tire pyrolysis process is a very clean operation and has nearly no emissions or waste.
h> The properties of the gas, liquid and solid output are determined by the type of feed stock used and the process conditions.
i> For instance whole tyres contain fibers and steel. Shredded tyres have most of the steel and sometimes most of the fiber removed.
j> Batch wise Process is done by tyre pyrolysis.
k> The steel can be removed from the solid stream with magnets for recycling. The remaining solid material, often referred to as "charcoal".