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Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste

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Strategic Possibility Routes of Recycled PET.

Damayanti^1,2, Ho-Shing Wu²

¹Department of Chemical Engineering, Institut Teknologi Sumatera, Lampung Selatan, Lampung 35365, Indonesia.

|June 2, 2021

Summary

Chemical recycling of polyethylene terephthalate (PET) offers sustainable solutions. Various methods like glycolysis and hydrolysis yield valuable products, addressing environmental concerns and resource scarcity.

Keywords:

glycolysis hydrolysis methanolysis phase transfer polyethylene terephthalate pyrolysis

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Area of Science:

Polymer Science
Chemical Engineering
Environmental Science

Background:

Polyethylene terephthalate (PET) presents significant sustainability challenges and opportunities.
Conventional PET degradation methods aim for high yields of ethylene glycol, bis(2-hydroxyethyl terephthalate), and terephthalic acid.

Purpose of the Study:

To review chemical recycling technologies for PET.
To investigate reaction kinetics and conditions for PET recycling.

Main Methods:

Review of chemical recycling methods including pyrolysis, hydrolysis, methanolysis, glycolysis, ionic-liquid, and phase-transfer catalysis.
Exploration of combined methods: glycolysis-hydrolysis, glycolysis-methanolysis, and methanolysis-hydrolysis.
Theoretical and experimental investigation of reaction kinetics and conditions.

Main Results:

Multiple chemical recycling pathways exist for PET, yielding valuable monomers.
Understanding reaction kinetics and conditions is crucial for optimizing PET degradation.
PET recycling contributes to environmental solutions and resource recovery.

Conclusions:

Chemical recycling of PET is a viable strategy for sustainability.
Optimized degradation processes can provide alternative sources for petrochemicals and energy.
Further research into reaction kinetics and conditions can enhance recycling efficiency.