PET Waste Recycling into BTX Fraction Using In Situ Obtained Nickel Phosphide

The annual production of plastic waste is a serious ecological problem as it causes substantial pollution of the environment. Polyethylene terephthalate, a material usually found in disposable plastic bottles, is one of the most popular material used for packaging in the world. In this paper, it is...

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Bibliographic Details
Published in:Polymers 2023-05, Vol.15 (10), p.2248
Main Authors: Golubeva, Maria, Mukhtarova, Mariyam, Sadovnikov, Alexey, Maximov, Anton
Format: Article
Language:English
Subjects:
Acids
Benzene
Bottles
Catalysts
Chromatography
Decomposition
Ecological effects
High resolution electron microscopy
Hydrocarbons
Identification and classification
Nickel
Nickel compounds
Phosphides
Phosphorus compounds
Photoelectrons
Polyethylene terephthalate
Properties
Radiation
Raw materials
Recycling
Structure
Textile fibers
Toluene
Transmission electron microscopy
X ray powder diffraction
Xylene
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Summary:The annual production of plastic waste is a serious ecological problem as it causes substantial pollution of the environment. Polyethylene terephthalate, a material usually found in disposable plastic bottles, is one of the most popular material used for packaging in the world. In this paper, it is proposed to recycle polyethylene terephthalate waste bottles into benzene-toluene-xylene fraction using a heterogeneous nickel phosphide catalyst formed in situ during the polyethylene terephthalate recycling process. The catalyst obtained was characterized using powder X-ray diffraction, high-resolution transmission electron microscopy, and X-ray photoelectron spectroscopy techniques. The catalyst was shown to contain a Ni P phase. Its activity was studied in a temperature range of 250-400 °C and a H pressure range of 5-9 MPa. The highest selectivity for benzene-toluene-xylene fraction was 93% at quantitative conversion.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym15102248