Pyrolysis is often confused with incineration, but they are very different processes with opposite outcomes. One burns the waste; the other recovers it. Understanding the difference is key to making sound decisions about plastic-reject management.
What is incineration
Incineration means burning the waste in the presence of oxygen to reduce its volume and, in some cases, recover thermal energy. The plastic is destroyed through combustion, generating gases and ash. It is a disposal solution: the material disappears, but it is not recovered as a resource.
What is pyrolysis
Pyrolysis does not burn the plastic. It thermally decomposes it in the absence of oxygen, breaking the polymer chains to transform them into usable products: pyrolysis oil, gas and char. It is a recovery process, not a destruction one.
Key differences
- Presence of oxygen: incineration burns with oxygen; pyrolysis decomposes without it.
- Outcome: incineration eliminates the waste; pyrolysis turns it into raw materials and energy products.
- Value recovered: incineration recovers thermal energy at most; pyrolysis recovers material and energy value.
- Regulatory fit: pyrolysis aligns with the European circular-economy and recovery targets.
Why the difference matters
In a regulatory framework that penalises landfilling and rewards recovery, the distinction is not just technical: it is strategic. Recovering plastic rejects instead of burning them reclaims value, generates revenue and strengthens the sustainability narrative.
At Nantek we apply pyrolysis at industrial scale with a range of modular plants tailored to each sector. Want to recover your waste instead of eliminating it? Contact us.
