How to Treat Waste Gas After Tire Pyrolysis?

Given the characteristics of tire pyrolysis waste gas, the treatment process typically includes the following steps:

1. Waste Gas Collection: Waste gas from the pyrolysis furnace and subsequent treatment equipment is comprehensively collected using gas collection hoods, pipelines, and other devices to ensure no leakage outside the workshop. The design of the gas collection hood should fully consider the amount and diffusion patterns of the waste gas to improve collection efficiency.

2. Pretreatment: The collected waste gas undergoes pretreatment operations such as dust removal and cooling. Dust removal can be achieved using cyclone dust collectors, bag filters, etc., to remove particulate matter from the waste gas; cooling can be achieved using cooling towers to lower the waste gas temperature, providing favorable conditions for subsequent treatment.

3. Core Treatment: Activated Carbon Adsorption: Utilizing the porous structure of activated carbon, volatile organic compounds in the waste gas are adsorbed. Activated carbon adsorption has advantages such as high treatment efficiency and simple operation.

4. Catalytic Combustion: For organic waste gases that are difficult to remove by activated carbon adsorption, catalytic combustion technology can be used for treatment. Under the action of a catalyst, organic matter in waste gas undergoes oxidation at lower temperatures, transforming into harmless substances such as carbon dioxide and water.

5. Chemical Absorption: For acidic gases such as hydrogen sulfide in waste gas, chemical absorption can be used. By spraying alkaline solutions or other absorbents into the absorption tower, these react chemically with the acidic gases like hydrogen sulfide in the waste gas, converting them into harmless substances.

6. Biological Treatment: In some cases, biological treatment technology can also be considered for waste gas treatment. Through the metabolic action of microorganisms, organic matter and sulfides in the waste gas are converted into harmless substances.