Between 2024 and 2025, Beston Group’s technical team conducted a series of tests on pyrolysis products from various plastic materials. This aims to provide reference data for investors. All plastic samples were sent to Beston quality testing department for testing. Professional engineers with over 10 years of experience follow standardized methodology to ensure data accuracy and reliability.
Methodology during Tests
- Subject each plastic sample to controlled plastic pyrolysis conditions.
- Record the time, flue gas temperature and oil production changes for each sample.
- Measure the weight and yield of the pyrolysis products to assess product efficiency.
Conclusion from Tests
- HDPE plastics have the highest oil yield, exceeding 85%.
- LDPE plastics have an oil yield of approximately 80%.
- PP plastics have a medium-to-high oil yield, around 70%.
- Mixed plastic waste from bottle caps shows a relatively high oil yield of 80%; however, due to the diverse composition of mixed plastics, this value is for reference only.
Mixed Plastic Waste Pyrolysis to Oil Test on 2025-07-08
On July 8, 2025, a mixed plastic waste sample (specifically bottle caps) was sent to Beston Group’s manufacturing base in Jiaozuo, China, for testing. The quality testing department conducted pyrolysis tests.
- Material: Bottle cap (mixed plastic)
- Sampling weight: 200 g
- Reaction time: 1 h 14 min
- Temperature: 378 °C
| Composition | Unit/g | Ratio/% |
|---|---|---|
| Oil | 173g | 86.50% |
| Residue | 4g | 2.00% |
| Pyrolysis Gas | 23g | 11.50% |
- Material: Bottle cap (mixed plastic)
- Sampling weight: 200 g
- Reaction time: 1 h 5 min
- Temperature: 314 °C
| Composition | Unit/g | Ratio/% |
|---|---|---|
| Oil | 160g | 80.00% |
| Residue | 8.5g | 4.25% |
| Pyrolysis Gas | 31.5g | 15.75% |
LDPE Pyrolysis to Oil Test on 2025-07-01
On July 1, 2025, an LDPE plastic sample was submitted to the manufacturing base of Beston Group in Jiaozuo, China for performance testing.
- Material: LDPE plastic mulching film (pure)
- Sampling weight: 80 g
- Reaction time: 1 h 14 min
- Temperature: 337 °C
| Composition | Unit/g | Ratio/% |
|---|---|---|
| Oil | 64g | 80.00% |
| Residue | 4g | 5.00% |
| Pyrolysis Gas | 12g | 15.00% |
HDPE Pyrolysis to Oil Test on 2024-12-28
On December 28, 2024, an HDPE plastic sample was sent to Beston Group’s manufacturing base in Jiaozuo, China, for testing. The quality testing department was responsible for the pyrolysis tests and analysis.
- Material: HDPE plastic granules
- Sampling weight: 200 g
- Reaction time: 1 h 15 min
- Temperature: 385 °C
| Composition | Unit/g | Ratio/% |
|---|---|---|
| Oil | 172g | 86.00% |
| Residue | 4g | 2.00% |
| Pyrolysis Gas | 24g | 12.00% |
- Material: HDPE plastic granules
- Sampling weight: 180 g
- Reaction time: 2 h 33 min
- Temperature: 306 °C
| Composition | Unit/g | Ratio/% |
|---|---|---|
| Oil | 158.5g | 88.06% |
| Residue | 2.5g | 1.39% |
| Pyrolysis Gas | 19g | 10.56% |
PP Pyrolysis to Oil Test on 2024-02-23
On Febrarury 23, 2023, the manufacturing base of Beston Group in Jiaozuo received an PP plastic sample for performance testing. The quality testing department was responsible for this work.
- Material: PP plastic granules
- Sampling weight: 200 g
- Reaction time: 1 h 30 min
- Temperature: 323 °C
| Composition | Unit/g | Ratio/% |
|---|---|---|
| Oil | 141.5g | 70.75% |
| Residue | 25.5g | 12.75% |
| Pyrolysis Gas | 33g | 16.5% |