Key Points to Improve Oil Yield of Waste Tire Pyrolysis Equipment

Key Points to Improve Oil Yield of Waste Tire Pyrolysis Equipment

1. Raw Material Pretreatment Optimization

Material Selection: Prioritize steel wire tires and engineering tires with high rubber content, avoiding inferior tires with excessive impurities.

Crushing and Separation: Perform fine crushing of tires, and remove impurities such as steel wires and fibers through magnetic separation and air separation to reduce the occupation of invalid materials in the pyrolysis space.

Drying Treatment: Dry the raw materials during pretreatment to reduce moisture content, avoiding heat consumption from water evaporation and dilution of oil and gas.

2. Precise Control of Pyrolysis Process Parameters

Temperature Control: Stabilize the pyrolysis temperature within the optimal range of 450–550°C to ensure sufficient cracking of rubber macromolecules while avoiding secondary cracking of oil products due to excessively high temperatures.

Residence Time Optimization: Adjust the residence time of materials in the pyrolysis furnace (usually 30–60 minutes) according to the particle size of raw materials to ensure full reaction of materials.

Negative Pressure-Assisted Collection: Introduce a negative pressure system in the late stage of pyrolysis to quickly extract residual oil and gas from the furnace and condense them, reducing oil volatilization loss.

3. Equipment Performance Upgrading

Select High-Efficiency Pyrolysis Furnaces: Choose equipment with high thermal efficiency and uniform heat transfer (such as horizontal rotating pyrolysis furnaces) to avoid local overheating or uneven heating of materials.

Sealing and Insovation Modification: Optimize the equipment sealing structure to prevent oil and gas leakage; use high-quality insulation materials to reduce heat loss of the furnace body and maintain a stable reaction environment.

Configure High-Efficiency Condensation Systems: Increase the number of condensation stages or use low-temperature condensation media to improve the condensation recovery rate of oil and gas and reduce the escape of light components.

4. Operation and Maintenance Management

Dynamic Process Adjustment: Fine-tune parameters such as temperature and feeding speed in real time according to changes in raw material composition to ensure the pyrolysis reaction is in an optimal state.

Regular Equipment Maintenance: Timely clean coking in the furnace and check sealing components to avoid efficiency decline and oil and gas leakage caused by equipment aging.

Introduce Catalytic Technology: Add special catalysts during the pyrolysis stage to promote the breaking of rubber macromolecules and improve the yield and quality of oil products.