Fabhind Private Limited

waste tyre pyrolysis plant

A waste tire pyrolysis plant is 

a recycling system that uses thermochemical processes to convert end-of-life tires into valuable resources, including pyrolysis oil, carbon black, and steel wire. This method helps address the environmental issues caused by tire waste, such as landfill contamination, while creating profitable products. 

The pyrolysis process

Pyrolysis is the chemical decomposition of organic materials by heating them to high temperatures in the absence of oxygen. In a waste tire pyrolysis plant, the process works as follows: 

1.     Pre-treatment: Waste tires are collected, sorted, and shredded into smaller pieces to prepare them for the pyrolysis reactor.

2.     Pyrolysis: Shredded tires are fed into an oxygen-free reactor and heated to 400°C–500°C. The rubber molecules break down into smaller hydrocarbon molecules, which turn into vapor.

3.     Condensation: The hot oil gas is sent through a condensing system, where it is cooled and converted into a liquid fuel, known as pyrolysis oil.

4.     Residue discharge: The solid residue left in the reactor, consisting of carbon black and steel wire, is discharged using a screw conveyor.

5.     Exhaust gas treatment: Non-condensable flammable gases are recycled to heat the reactor, while other exhaust gases are treated through a scrubbing system to meet environmental standards. 

End products and their applications

A waste tire pyrolysis plant can achieve up to 100% recycling, turning waste into useful resources with no landfill waste. The primary end products include: 

·        Pyrolysis Oil

This high-calorific fuel can be sold as an alternative to fossil fuels for industrial heating in boilers, furnaces, and cement kilns. It can also be further refined into non-standard diesel for use in heavy machinery or generators.

·        Carbon Black

The recovered carbon black (rCB) can be processed into different grades for use as a filler in new rubber products, such as tires and other rubber goods, or as a pigment for coatings and printing inks.

·        Steel Wire

The steel wire remaining after the process can be sold as scrap steel to be re-smelted and used in steel manufacturing.

·        Syngas

The non-condensable gas produced during pyrolysis has high energy content and is typically recycled to provide fuel for the pyrolysis process itself, making the plant energy self-sufficient. 

Types of pyrolysis plants

There are two main types of waste tire pyrolysis plants, differing primarily in their operational scale and automation: 

·        Batch-type: Suited for small to medium-scale operations, a batch plant processes a fixed amount of tires and must be cooled down after each cycle to discharge the carbon black and steel and load the next batch. It is generally more labor-intensive.

waste tyre pyrolysis plant

A waste tire pyrolysis plant is 

a recycling system that uses thermochemical processes to convert end-of-life tires into valuable resources, including pyrolysis oil, carbon black, and steel wire. This method helps address the environmental issues caused by tire waste, such as landfill contamination, while creating profitable products. 

The pyrolysis process

Pyrolysis is the chemical decomposition of organic materials by heating them to high temperatures in the absence of oxygen. In a waste tire pyrolysis plant, the process works as follows: 

1.     Pre-treatment: Waste tires are collected, sorted, and shredded into smaller pieces to prepare them for the pyrolysis reactor.

2.     Pyrolysis: Shredded tires are fed into an oxygen-free reactor and heated to 400°C–500°C. The rubber molecules break down into smaller hydrocarbon molecules, which turn into vapor.

3.     Condensation: The hot oil gas is sent through a condensing system, where it is cooled and converted into a liquid fuel, known as pyrolysis oil.

4.     Residue discharge: The solid residue left in the reactor, consisting of carbon black and steel wire, is discharged using a screw conveyor.

5.     Exhaust gas treatment: Non-condensable flammable gases are recycled to heat the reactor, while other exhaust gases are treated through a scrubbing system to meet environmental standards. 

End products and their applications

A waste tire pyrolysis plant can achieve up to 100% recycling, turning waste into useful resources with no landfill waste. The primary end products include: 

·        Pyrolysis Oil

This high-calorific fuel can be sold as an alternative to fossil fuels for industrial heating in boilers, furnaces, and cement kilns. It can also be further refined into non-standard diesel for use in heavy machinery or generators.

·        Carbon Black

The recovered carbon black (rCB) can be processed into different grades for use as a filler in new rubber products, such as tires and other rubber goods, or as a pigment for coatings and printing inks.

·        Steel Wire

The steel wire remaining after the process can be sold as scrap steel to be re-smelted and used in steel manufacturing.

·        Syngas

The non-condensable gas produced during pyrolysis has high energy content and is typically recycled to provide fuel for the pyrolysis process itself, making the plant energy self-sufficient. 

Types of pyrolysis plants

There are two main types of waste tire pyrolysis plants, differing primarily in their operational scale and automation: 

·        Batch-type: Suited for small to medium-scale operations, a batch plant processes a fixed amount of tires and must be cooled down after each cycle to discharge the carbon black and steel and load the next batch. It is generally more labor-intensive.

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