Evaluation of different fiber impurities on hydrothermal liquefaction of mixed textile waste

Aisha Matayeva; Astrid Skifter Madsen; Patrick Biller

doi:10.1016/j.resconrec.2022.106833

Evaluation of different fiber impurities on hydrothermal liquefaction of mixed textile waste

Aisha Matayeva, Astrid Skifter Madsen, Patrick Biller^*

^*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review

7 Citationer (Scopus)

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Abstract

There is a need for more sustainable recycling technologies for mixed textile waste, including the two main fibers poly(ethylene terephthalate) (PET) and cotton but also containing other fiber types. Hydrothermal liquefaction has been shown to be a promising technology to recycle textile waste containing cotton and PET into bio-oil and terephthalic acid (TPA). However, the practically accumulated composition of textile waste is more complex and features more than two fibers. In the present study we investigated the effect of eight different fabrics individually in ternary mixtures with a fixed ratio of cotton and PET and in a complex mixture reflecting the global fiber production. It was found that between 3 and 12 wt% bio-oil and 17–77 wt% TPA can be obtained depending on composition and temperature. Fibers with a high nitrogen content, such as suede, acrylic and nylon, significantly decreased the TPA yields due to the formation of terephthalic amides.

Originalsprog	Engelsk
Artikelnummer	106833
Tidsskrift	Resources, Conservation & Recycling
Vol/bind	190
Antal sider	9
ISSN	0921-3449
DOI	https://doi.org/10.1016/j.resconrec.2022.106833
Status	Udgivet - mar. 2023

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10.1016/j.resconrec.2022.106833Licens: CC BY

1-s2.0-S0921344922006656-mainForlagets udgivne version, 1,61 MBLicens: CC BY

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title = "Evaluation of different fiber impurities on hydrothermal liquefaction of mixed textile waste",

abstract = "There is a need for more sustainable recycling technologies for mixed textile waste, including the two main fibers poly(ethylene terephthalate) (PET) and cotton but also containing other fiber types. Hydrothermal liquefaction has been shown to be a promising technology to recycle textile waste containing cotton and PET into bio-oil and terephthalic acid (TPA). However, the practically accumulated composition of textile waste is more complex and features more than two fibers. In the present study we investigated the effect of eight different fabrics individually in ternary mixtures with a fixed ratio of cotton and PET and in a complex mixture reflecting the global fiber production. It was found that between 3 and 12 wt% bio-oil and 17–77 wt% TPA can be obtained depending on composition and temperature. Fibers with a high nitrogen content, such as suede, acrylic and nylon, significantly decreased the TPA yields due to the formation of terephthalic amides.",

keywords = "Bio-oil, Cotton, Hydrothermal liquefaction, Polyester, Terephthalic acid, Textile waste",

author = "Aisha Matayeva and Madsen, {Astrid Skifter} and Patrick Biller",

note = "Publisher Copyright: {\textcopyright} 2022 The Author(s)",

year = "2023",

month = mar,

doi = "10.1016/j.resconrec.2022.106833",

language = "English",

volume = "190",

journal = "Resources, Conservation & Recycling",

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TY - JOUR

T1 - Evaluation of different fiber impurities on hydrothermal liquefaction of mixed textile waste

AU - Matayeva, Aisha

AU - Madsen, Astrid Skifter

AU - Biller, Patrick

PY - 2023/3

Y1 - 2023/3

N2 - There is a need for more sustainable recycling technologies for mixed textile waste, including the two main fibers poly(ethylene terephthalate) (PET) and cotton but also containing other fiber types. Hydrothermal liquefaction has been shown to be a promising technology to recycle textile waste containing cotton and PET into bio-oil and terephthalic acid (TPA). However, the practically accumulated composition of textile waste is more complex and features more than two fibers. In the present study we investigated the effect of eight different fabrics individually in ternary mixtures with a fixed ratio of cotton and PET and in a complex mixture reflecting the global fiber production. It was found that between 3 and 12 wt% bio-oil and 17–77 wt% TPA can be obtained depending on composition and temperature. Fibers with a high nitrogen content, such as suede, acrylic and nylon, significantly decreased the TPA yields due to the formation of terephthalic amides.

AB - There is a need for more sustainable recycling technologies for mixed textile waste, including the two main fibers poly(ethylene terephthalate) (PET) and cotton but also containing other fiber types. Hydrothermal liquefaction has been shown to be a promising technology to recycle textile waste containing cotton and PET into bio-oil and terephthalic acid (TPA). However, the practically accumulated composition of textile waste is more complex and features more than two fibers. In the present study we investigated the effect of eight different fabrics individually in ternary mixtures with a fixed ratio of cotton and PET and in a complex mixture reflecting the global fiber production. It was found that between 3 and 12 wt% bio-oil and 17–77 wt% TPA can be obtained depending on composition and temperature. Fibers with a high nitrogen content, such as suede, acrylic and nylon, significantly decreased the TPA yields due to the formation of terephthalic amides.

KW - Bio-oil

KW - Cotton

KW - Hydrothermal liquefaction

KW - Polyester

KW - Terephthalic acid

KW - Textile waste

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U2 - 10.1016/j.resconrec.2022.106833

DO - 10.1016/j.resconrec.2022.106833

M3 - Journal article

AN - SCOPUS:85144341616

SN - 0921-3449

VL - 190

JO - Resources, Conservation & Recycling

JF - Resources, Conservation & Recycling

M1 - 106833

ER -

Evaluation of different fiber impurities on hydrothermal liquefaction of mixed textile waste

Abstract

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