Tyre pyrolysis gas is primarily composed of methane and other hydrocarbons. This gas is produced as a by-product during the pyrolysis of waste tires.
The gas is generated through the thermal decomposition of the rubber and other components in the tires at high temperatures. These temperatures typically range between 450°C and 700°C.
Methane Content: A Major Component
The tyre pyrolysis gas contains approximately 40% methane. Methane is a major component of this gas due to its formation from the cracking of hydrocarbons present in the tire material.
This high methane content makes the gas a valuable fuel source.
Other Hydrocarbons: Varied Composition
Besides methane, the gas also includes other hydrocarbons. These are formed from the breakdown of complex organic compounds in the tires, including those in the rubber and other additives.
The specific hydrocarbons can vary depending on the exact composition of the tires and the pyrolysis conditions.
Generation and Utilization: Efficient Energy Use
During the pyrolysis process, the gas by-products are generated and flow through a special heat exchanger designed for hydrocarbons. This process separates the pyrolysis gas from the oil through condensation.
The uncondensed gas, which includes the pyrolysis gas, is further cooled and then used to fuel the reactor again. This conserves energy and reduces the need for external fuel sources.
Environmental Impact: Clean and Sustainable
The gas emitted during the tyre pyrolysis process undergoes a waste gas filtration system. This system includes a water circulation type dust removal system and a gas purification box.
This ensures that the clean gas discharged meets environmental standards, such as EU standards, minimizing the environmental impact of the process.
In summary, the tyre pyrolysis gas is a mixture primarily of methane and other hydrocarbons, produced during the thermal decomposition of waste tires. This gas is not only a by-product but also a valuable resource that can be utilized to fuel the pyrolysis process, thereby enhancing the energy efficiency of the system.
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