
Technology
JEPLAN Rewind PET

- Owner
-
/ JEPLAN - Brand
- Rewind® PET
- Process
- Molecular Recycling
- Type
- PET Depolymerization
- Available
- Description
-
Rewind® PET is a PET Monomer Recycling Solution that allows producing high quality clear and food grade PET for Packaging from currently undervalued waste PET. It is the result of the partnership between JEPLAN, a disruptive start-up in circular economy, IFPEN, a recognized R&D center and Axens as a licensor & engineering company. The Rewind® PET preferred Feedstocks are currently poorly valorized colored and opaque PET Bottles and Trays. Moreover, Rewind® PET is unlocking the recycling of PET Films, Multi Layers Trays and Fibers (Clothes, Carpets, …) into Virgin Food Grade PET.[1]
The Process is employing the AIES Co., Ltd. Glycolysis Technology[2] acquired and developed by PET Rebirth[3] that is made of seven different Stages:
The BHET Monomer is produced by Depolymerising PET in MEG as a solvent at 220°C to form a Pre-Decomposition Product in which PET is broken down into Oligomers.- MEG and Sodium Methylate Catalyst are added to this Product and the Mix is heated at 200°C for 2 hours to completely decompose PET into BHET.
- The Product of this Reaction is then filtered with Activated Carbon to remove the Colorants coming from the Caps and the Labels.
- Through an Ion-Exchange Resin, Impurities and the Metal Catalyst are removed.
- The BHET-containing MEG Solution is cooled to about 20°C and gently stirred so that BHET Crystals slowly grow into a pure Monomer.
- The Mix is pressed to remove the BHET Crystals that formed and MEG is removed to be reused in the Process.
- In the Molecular Distillation Stage BHET Cakes are heated to evaporate the remaining MEG and to increase the concentration of the BHET Solids; BHET is then liquefied and treated in a vacuum to remove remaining Impurities.
The picture shows the Process Step Diagram illustrating a preferred Distillation Step (combination of Components of Distiller) in US 7,030,264 B1, wherein reference numerals denote:
- a first Evaporator
- a Condenser
- a Melt Solution Transport Pump
- a second Evaporator
- a Condenser
- a Melt Solution Transport Pump
- a Condensate Reservoir
- a Molecular Still
- an Internal Condenser
- Heating Means
- a Product Output Port
- a Distillation Pot Residue Output Port
- a Cooling Medium Circulating Tank
- a Heating Medium Tank
References
- Rewind® PET Commercial Bulletin, AXENS
- BIS-B-HYDROXYETHYL TEREPHTHALATE, US 7,030,264 B1, Priority: 2000/07/31, Grant: 2006/04/1
- Processes for the purification of bis(2-hydroxyethyl)terephthalate, US20040182782A1, Filed: 2003/05/30, Grant: 2007/05.01, Expired - Fee Related
- Link
System Info
- Updated by
-
 Kokel, Nicolas
- Updated
- 2/5/2023 7:05 PM
- Added by
-
 Kokel, Nicolas
- Added
- 2/5/2023 1:16 PM
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Entity | Site (Country) | Asset (Plant) | |||
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PET Glycolysis |