Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Comparative study of thermochemical recycling with solvolysis and pyrolysis of End-of-Life wind turbine blades: Rekovind2 - WP3
RISE Research Institutes of Sweden, Bioeconomy and Health, Biorefinery and Energy.ORCID iD: 0000-0001-9126-0155
RISE Research Institutes of Sweden, Materials and Production, Applied Mechanics.ORCID iD: 0000-0002-3223-5627
RISE Research Institutes of Sweden, Materials and Production, Polymeric Materials and Composites.ORCID iD: 0000-0002-5404-8144
2023 (English)Report (Other academic)
Abstract [en]

There is an urgent need for the development of viable recycling solutions for the increasing waste streams of glass fiber composites (GFRPs) from all sectors i.e. leisure boats, windmills and building constructions. Two potential recycling methods that can separate and recover both the polymers and the high-quality fibers from these kinds of materials are pyrolysis and solvolysis. In this project recycling of an epoxy-based Endof-Life wind turbine blade was evaluated in lab scale using the two methods. In previous literature the main focus has been on the quality of the fibers but in this project the main focus was to compare the chemical composition of the oil products. The produced oils from solvolysis and pyrolysis have been compared with a multianalysis approach by using elemental analysis, GC-MS, pyro-GC-MS/FID, 2D NMR (HSQC) for gaining more information about the chemical structure of the produced monomers (phenols), oligomers and polymers. Almost all the volatile matter in the End-of-Life wind turbine blade was recovered as pyrolysis oil, 36 wt.% yield. The solvolysis oil yield was lower, 17 wt.%, mainly due to a major part of the solvolysis oil ended up in the aqueous solvent. The composition of the oils from both technologies was analyzed based on both their volatile i.e. monomeric and polymeric content. The result point to that both methods produced oils with similar polymeric parts according to NMR and pyro-GC-MS/FID, based on an oxygenated aliphatic network connected with aromatic phenolic structures. Increased information of chemical oil composition will be useful for further processing as raw material in refineries/chemical industries. The monomeric part of the oil produced from pyrolysis was found in relatively large amounts, ~57 wt.%, and can be a future high-value product from recycling of wind turbine blades. The total recovery of phenolics from the pyrolysis was 18 wt.% of the wind turbine blade weight.

Place, publisher, year, edition, pages
2023. , p. 56
Keywords [en]
Recycling of composites, glass fiber composites, GFRP, thermochemical recycling, solvolysis, hydrothermal liquification, HTL, pyrolysis, End-of-Life (EOL) wind turbine blades, epoxy thermoset, 2D NMR, HSQC, pyrolysis-GC-MS, oil quality
National Category
Composite Science and Engineering
Identifiers
URN: urn:nbn:se:ri:diva-65657OAI: oai:DiVA.org:ri-65657DiVA, id: diva2:1780227
Note

Project name ” Rekovind2 - Digitalization of wind blade streams before reuse and recycling”, Swedish Energy Agency project number 47044-2, Dnr 2021-029795, RISE Project  P113615-1

Available from: 2023-07-05 Created: 2023-07-05 Last updated: 2023-07-05Bibliographically approved

Open Access in DiVA

fulltext(3522 kB)258 downloads
File information
File name FULLTEXT01.pdfFile size 3522 kBChecksum SHA-512
93b11cce9b7e571b8fb97c0a6e6b01be0f76b8b13bdc2fc61a3fcc91b97aa80cb7f865149bb8298b2c3d6ba50c693592707fe7a1b50a494e55628867cfc5c501
Type fulltextMimetype application/pdf

Authority records

Johansson, Ann-ChristineSott, RichardMattsson, Cecilia

Search in DiVA

By author/editor
Johansson, Ann-ChristineSott, RichardMattsson, Cecilia
By organisation
Biorefinery and EnergyApplied MechanicsPolymeric Materials and Composites
Composite Science and Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 259 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 819 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf