What kind of oil is produced from waste tire refining?
2 Answers
Fuel oil produced from waste tire refining. Here is relevant information: 1. Raw materials of waste tires: The main components of waste tires include rubber, carbon black, special additives, steel wires, polymers, and other chemical substances. Therefore, after the pyrolysis process using waste tire refining equipment, the resulting products are fuel oil, carbon black, and steel wires. 2. Precautions: However, the use of primitive methods for refining oil from waste tires is explicitly prohibited by the state. These primitive refining methods are backward in production, crude in process, and yield inferior products, seriously violating the "Environmental Protection Management Regulations for Construction Projects" issued by the State Council.
While researching scrap recycling recently, I learned that waste tires can be refined into tire oil through high-temperature pyrolysis, which is essentially a mixture of various hydrocarbon compounds. I disassembled a small pyrolysis device to understand its principle—tires are heated to 400–500°C in an oxygen-deprived environment, causing the rubber to decompose and produce this dark brown, viscous liquid. Strictly speaking, it’s not standard fuel; it has extremely high sulfur content and heavy metal impurities, producing thick black smoke when burned. However, cement plants can directly use it to fire rotary kilns, and power plants can blend it with coal powder for combustion, though desulfurization equipment must be installed. While this method addresses tire pollution, the pungent odor during combustion still raises environmental concerns.
