Process for depolymerizing plastics material
WO2026125554A1PCT designated stage Publication Date: 2026-06-18OMV DOWNSTREAM GMBH
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- OMV DOWNSTREAM GMBH
- Filing Date
- 2025-12-11
- Publication Date
- 2026-06-18
AI Technical Summary
⚠Technical Problem
Existing chemical recycling processes for plastics, such as pyrolysis, face inefficiencies and high costs due to the limitations of using external solvents like heavy oils, leading to coke formation and reduced quality over recycling cycles.
⚗Method used
Incorporating a light polymer fraction from polyolefin (PO) production processes as an external solvent in the pyrolysis reactor, which reduces viscosity, stabilizes the process, and minimizes coke formation by leveraging chemical similarity and stability advantages over traditional solvents.
🎯Benefits of technology
The process enhances pyrolysis efficiency, reduces coke formation, and maintains product quality, effectively closing the loop in plastic waste management by utilizing otherwise discarded polymer fractions.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure EP2025086492_18062026_PF_FP_ABST
Abstract
The present invention relates to a process for depolymerizing plastics material (1), the process comprising: - mixing the plastics material (1) with a light polymer fraction (5) derived from a polyolefin (PO) production process to obtain a pyrolysis feed (8), - processing the pyrolysis feed (8) in a pyrolysis reactor (9) to generate a pyrolysis product (10), wherein the light polymer fraction (5) has a molecular weight distribution with an average molecular weight (Mw) of between 500 and 100000.
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