Pyrolysis characteristics of glass fiber-reinforced plastic (GFRP) under isothermal conditions

Yun, Young Min; Seo, Myung Won; Won, Ho; Koo, Geon Hoe; Oh, Jeong Seog; Yoon, Sang Jun; Kim, Yong Ku; Lee, Jae Goo; Kim, Jae Ho

doi:10.1016/j.jaap.2015.04.013

Cited by 33 publications

(17 citation statements)

References 25 publications

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“…Recovery of GFRC using Table 1 Recovery of CF from reinforced composites using pyrolysis process (operational parameters, post-pyrolysis and products yield). Giorgini et al a pyrolysis process under non-isothermal and isothermal conditions were investigated by (Yun et al, 2014) and (Yun et al, 2015). In the first study, pyrolysis behaviour of composite scrap were determined under non-isothermal conditions at various heating rates and temperatures using a thermogravimetric analysis (TGA) and batch-type pyrolyzer.…”

Section: Gf Recoverymentioning

confidence: 99%

A critical review on recycling of end-of-life carbon fibre/glass fibre reinforced composites waste using pyrolysis towards a circular economy

Naqvi

Prabhakara

Bramer

et al. 2018

Resources, Conservation and Recycling

335

153

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The rapid utilization of carbon fibre reinforced composite (CFRC) and glass fibre reinforced composite (GFRC) in main sectors, such as automobile, aerospace, wind turbines, boats and sport parts, has gained much attention because of its high strength, light weight and impressive mechanical properties. Currently, the increasing amount and handling of composite waste at their end-of-life (EoL) has a negative impact on resources conservation and the environment. Pyrolysis, a two-step process, appeared as most viable process to recover not only valuable materials but also produce fuel and chemicals. However, the testing facilities and optimized operation of composite waste in pyrolysis processes to produce materials with low energy consumption and acceptable mechanical properties are still under development and discussion before commercialization. The aim of this article is to review the studies on CFRC/GFRC recycling via pyrolysis processes and highlight their technical challenges and re-use possibilities in high performance composites. The forthcoming commercialization challenges and respective market potential to recyclates using the pyrolysis process will be addressed. This study will also introduce the strong connection between recycling and re-usability of fibres which would help to explain the concept of circular economy and cradle-to-cradle approach. Finally, based on updated studies and critical analysis, research gaps in the recycling treatments of fibrous composite waste using pyrolysis processes are discussed with recommendations.

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Section: Gf Recoverymentioning

confidence: 99%

A critical review on recycling of end-of-life carbon fibre/glass fibre reinforced composites waste using pyrolysis towards a circular economy

Naqvi

Prabhakara

Bramer

et al. 2018

Resources, Conservation and Recycling

335

153

View full text Add to dashboard Cite

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“…As ASR is a multi-component material, it is important to investigate the influence of its composition on the pyrolysis process. Yun et al [26] investigated the pyrolysis characteristics of glass fiber reinforced plastic (GFPR), which is one of the components of ASF. They created isothermal conditions in a thermo-balance reactor (TBR) and a wire mesh reactor (WMR) to determine the mass loss curve, product yield, and kinetic parameters.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical-Driven Prediction of Automotive Shredder Residue Pyrolysis Pathways toward Gaseous Products

et al. 2021

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There has been a gradual increase in the field of parts recovery from cars that are withdrawn from use. However, the disposal of automotive shredder residue (ASR) still remains a significant problem. ASR is refuse derived fuel (RDF), which contains mainly plastics, fiber sponges, and rubbers in different proportions, and therefore a thermal treatment of selected waste samples is applied. The presented research includes thermogravimetry (TG) analysis and differential thermogravimetric (DTG) analysis, as well as a proximate and an ultimate analysis of the ASR samples. The obtained results were processed and used as an input for modelling. The numerical calculations focused on the identification of the ASR’s average composition, the raw pyrolysis process product, its dry pyrolytic gas composition, and the combustible properties of the pyrolytic gases. The TGA analysis with three heating rate levels covered the temperature range from ambient to 800 °C. The thermal decomposition of the studied samples was in three stages confirmed with three peaks observed at the temperatures 280, 470, and 670 °C. The amount of solid residue grew with the heating rates and was in the range of 27–32 wt%. The numerical calculation of the pyrolysis process showed that only 0.46 kg of dry gas were formed from 1 kg of ASR. The gas yield increased with the rising temperature, and, at the same time, its calorific value decreased from 19.22 down to 14.16 MJ/m3. This is due to the decomposition of C6+ hydrocarbons and the promotion of CO formation. The thermodynamic parameters of the combustion process for a pyrolytic gas air mixture, such as the adiabatic flame temperature and laminar flame speed, were higher than for methane and were, respectively, 2073 °C and 1.02 m/s.

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“…Thermogravimetric analysis and fixed bed pyrolysis tests are reliable methods of obtaining preliminary results of fuel properties and knowledge on conversion temperatures during thermal treatment. To date, the kinetics of the pyrolysis of mixed solid waste [15], plastics [16], tires, biomass, refuse-derived fuels (RDF) and various coals have been studied by means of thermogravimetric analysis (TGA) [17]. Co-pyrolysis (pyrolysis of mixed wastes and coal) of biomass/coal blends [18][19], coal/plastic mixtures [20][21] and biomass/MSW [22] have also been investigated in TGA and fixed bed reactors.…”

Section: Introductionmentioning

confidence: 99%

Characterization of solid char produced from pyrolysis of the organic fraction of municipal solid waste, high volatile coal and their blends

Tokmurzin

Kuspangaliyeva

Aimbetov

et al. 2020

Energy

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In this study, the organic fraction of municipal solid waste (Org-MSW) was blended with high-volatile coal (HVC) in proportions of 25/75%, 50/50%, 75/25% by weight. Pyrolysis of these mixtures was then investigated in a thermogravimetric analyzer (TGA) and a horizontal tube furnace under a nitrogen environment. The mass loss rate of samples, differential thermogravimetry (DTG) curves and kinetic analysis of the samples were compared for both blended and non-blended samples. Higher gas yields were seen with increasing pyrolysis temperature for both samples. In addition, the kinetic analysis indicated that the apparent activation energy values of org-MSW samples varied from 535 to 5284 kJ/kmol (over the temperature range of 100 to 887°C), while the values for HVC were 247 to 962 kJ/kmol. The activation energy for HVC varied with temperature and the highest value of 2036 kJ/kmol was found in the temperature range of 336-490°C. Comparable results were obtained between the TGA and fixed bed tests on the residual char fraction. The findings of

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Pyrolysis characteristics of glass fiber-reinforced plastic (GFRP) under isothermal conditions

Cited by 33 publications

References 25 publications

A critical review on recycling of end-of-life carbon fibre/glass fibre reinforced composites waste using pyrolysis towards a circular economy

A critical review on recycling of end-of-life carbon fibre/glass fibre reinforced composites waste using pyrolysis towards a circular economy

Experimental and Numerical-Driven Prediction of Automotive Shredder Residue Pyrolysis Pathways toward Gaseous Products

Characterization of solid char produced from pyrolysis of the organic fraction of municipal solid waste, high volatile coal and their blends

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