Chemical Recycling of Polyethylene Terephthalate: A Review

Document Type : compile

Authors

1 ippi

2 کارشناس پژوهشی

Abstract

A great amount of polyethylene terephthalate-based disposable products and their
discharge in nature as waste plastics create serious environmental concerns. The
mechanical recycling of these materials to some polyester-based products accounts only
a small fraction of the waste materials. As a suitable alternative, the chemical recycling
provides methods to remove PET from environment, produces high-value-added materials,
by returning them to the production process in accordance with the principles of sustainable
development of ecosystems, and creates job and research opportunities. Several chemical
recycling methods such as alcoholysis, aminolysis, glycolysis have been explored and
numerous research works have been carried out to find suitable degradable materials,
produce applicable materials, find ecofriendly catalysts under economically operating
conditions. Despite a remarkable number of research attempts on different methods in
chemical recycling studies, there are still a few industrial or even semi-industrial chemical
recovery plants and very little information available on them. This current article briefly
reviews the different chemical recycling methods applied in PET recycling production, the
relative importance and economical issues of each method, materials and products, and the
operational conditions.

Keywords

Main Subjects

References

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