Polyolefin depolymerization with metal oxides
US11377534B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Sep 9, 2020 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Sep 9, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Methods of depolymerizing polyolefin-based material into useful petrochemical products using metal oxides and heat are described. The metal oxides improve the depolymerization reaction by decreasing the onset temperature for the depolymerization, which results in a higher depolymerization rate and a shorter residence time in the depolymerization unit, allowing for a predictable depolymerization reaction, and decreasing the branching or aromatic formations in the product.
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