What's tire pyrolysis process, how does pyrolysis work?

As the waste tire amount is generated higher and higher, the waste tire pollution is also becoming heavier and heavier. So, it's very urgent and important for the world to find a way to dispose of waste tires and prevent or reduce the pollution caused by waste tires.

Piles of waste tyres

At present, the most commonly used ways to dispose of waste tires aer as follows:

1) Pile up to landfill;

2) Recycle heat by burning and incineration;

3) Tire retreading;

4) Waste tire recycling to reclaimed rubber;

5)Recycle tire into fuel oil by pyrolysis plant;

Waste tire to fuel oil pyrolysis plant

If you had done some research about waste tire recycling, you would know that none of the above 4 methods aren't good solutions. These processing ways may cause big waste of these raw materials, and also generate heavy pollution to the environment. In view of this current situation, the best way to dispose of waste tires is to use pyrolysis technology.

What' s tire pyrolysis process?

Tire is mainly composed of rubber (include natural rubber and synthetic rubber), carbon black and many other organic and inorganic addition agents (include plasticizer, antiager, sulphur, zinc oxide, etc). 

Waste tire pyrolysis means the process that under a sealed pyrolysis reactor with proper heating, the main chain of the rubber in tires cracked into monomer, biopolymer and fragments, which then be polymerized to many kinds of olefins, thus get rid of the volatile substances to solid carbon. The main end products are fuel oil, uncondensable gas, carbon black and steel wire. The composition of every product is different as different pyrolysis methods, temperature, etc.

Waste tire pyrolysis process gif

Through tire pyrolysis process, it could recycle waste tires to renewable energy, fuel oil, carbon black, syn-gas, steel wire, etc., also without generating secondary pollution to the environment. And DOING Company' s new type waste tire pyrolysis plants are all equipped with smoke cleaning system, tail gas cleaning system, bad smell removal system and water circulation system, thus keeping no pollution to both the air and water.

Environmental protection system

How does pyrolysis work?

DOING Company has different types of tire pyrolysis plants for sale, including batch/semi-continuous/fully continuous pyrolysis plants. Their tire to oil pyrolysis working process is similar:

First, use the wire drawing machine to take out the tire wire, this step is to prepare for shredding the tires;

Second, put tires without hard steel wire into tire shredder to obtain small piece of tires, shredded tires are easy to pyrolyze;

• Note: Above 2 steps is unnecessary for batch tire pyrolysis plant, but necessary for semi-continuous and fully continuous type tire pyrolysis plant.

Workflow of continuous waste tire pyrolysis plant

Third, send the shredded tires/whole tyre into pyrolysis reactor through auto feeder and heat the reactor with fuel/LPN/wood/coal/natural gas. This step can realize automatic feeding, thus reduce labor cost and investment. And the syn-gas generated in the tire pyrolysis process can also be used to heat the pyrolysis rector for saving cost.

Four, when the pyrolysis reactor is heated to a certain temperature, oil gas will generate, then oil gas goes through three-step cooling system, including vertical condenser,horizontal condenser and cooling tower, to be cooled down to get oil and enter oil tanks;

Five, the non-condensable gas coming out of the cooling tower can be recycled to heat the reactor after being treated by tail gas cleaning and odor removal system;

Six, smoke will be generated during the burning of fuel, which can be discharged after being treated by the smoke cleaning system;

Seven, at last, the carbon black in the pyrolysis reactor can be collected by the carbon screw conveyor;

The above is the introduce to waste tire pyrolysis plant, in addition to waste tires, Doing Group waste tire pyrolysis plant can also dispose of waste plastics/waste oil sludge.

DOING waste tire pyrolysis plant picture

If you want to know more information about waste tire pyrolysis plant, welcome to consult us. DOING pyrolysis plants are of high oil yield, reliable quality and stable operation, which are widely recognized and appreciated by customers in more than 90 countries and regions!