Synergistic Effects for Co-pyrolysis of Epoxy Resin and Polyurethane from Retired Wind Turbine Blades

Wu, Zhichao; Li, Chengyu; Shan, Rui; Zhang, Jun

doi:10.1007/s12649-023-02263-9

Cited by 5 publications

(2 citation statements)

References 40 publications

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“…Additionally, it was observed in the experiment that there was a minor temperature drop during the pyrolysis process, as indicated by the orange arrow in Figure 6. Studies by Wu et al [45] revealed that the pyrolysis of resin reached its maximum value at 400 • C. In this study, since resin pyrolysis is an endothermic reaction, the temperature drop stage corresponds to the most intense stage of the pyrolysis process. At this stage, the color of the volatile products can be observed to be darker, as shown in the dark yellow part at the top of Figure 5, which further verifies that there is a high pyrolysis rate at this stage.…”

Section: Temperature Rise Characteristic At Different Microwave Heati...mentioning

confidence: 65%

Section: Temperature Rise Characteristic At Different Microwave Heati...mentioning

confidence: 99%

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Experimental Study on Microwave Pyrolysis of Decommissioned Wind Turbine Blades Based on Silicon Carbide Absorbents

Zhang,

Song,

Hou

et al. 2024

Processes

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The rapid expansion of the scale of wind power has led to a wave of efforts to decommission wind turbine blades. The pyrolysis of decommissioned wind turbine blades (DWTBs) is a promising technological solution. Microwave pyrolysis offers the benefits of fast heating rates and uniform heat transfer, making it a widely used method in various heating applications. However, there are few studies on the microwave pyrolysis of DWTBs, and pyrolysis characteristics under different boundary conditions remain unclear. In this paper, we investigate the pyrolysis characteristics of DWTBs by utilizing silicon carbide (SiC) particles as a microwave absorbent. The results demonstrated that, when the microwave heating power increased from 400 W to 600 W, the heating rate and pyrolysis final temperature of the material increased, resulting in a reduction in pyrolysis residual solid yield from 88.30% to 84.40%. At 600 W, pyrolysis gas components included C2H4, CH4, and CO, while the tar components included phenol and toluene. The highest degree of pyrolysis was achieved under the condition of an SiC particle size of 0.85 mm, with better heating performance, and the calorific value of the pyrolysis gas generated was 36.95 MJ/Nm3. The DWTBs did not undergo pyrolysis when SiC was not added. However, when the mass ratio of SiC to DWTBs was 4, the tar yield was 4.7% and the pyrolysis gas yield was 17.0%, resulting in a faster heating rate and the highest degree of pyrolysis. Based on this, an optimal process for the microwave pyrolysis of DWTBs was proposed, providing a reference for its industrial application.

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Section: Temperature Rise Characteristic At Different Microwave Heati...mentioning

confidence: 65%

Section: Temperature Rise Characteristic At Different Microwave Heati...mentioning

confidence: 99%

Experimental Study on Microwave Pyrolysis of Decommissioned Wind Turbine Blades Based on Silicon Carbide Absorbents

Zhang,

Song,

Hou

et al. 2024

Processes

View full text Add to dashboard Cite

show abstract

Co‐Pyrolysis and Pyrolysis of Corn‐Cob Biomass and Waste Plastic: Comprehensive Study Based on Kinetic and Thermodynamic Approach

Reddy,

Ajay Raj,

Baburao

et al. 2024

ChemistrySelect

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This study focuses on the utilization of agro‐residual corn‐cob biomass, waste plastic and the combination of both for pyrolysis reaction using thermal analysis. Circular bioeconomy is assured by closing all the resource materials loops through co‐pyrolysis process. The conversion profiles of corn cob pyrolysis at various heating rates reveal a three‐stage decomposition process, and plastic waste exhibits single stage degradation. Due to the interaction between the blended materials, additional degradation peaks arise during the co‐pyrolysis of waste plastic (PET bottles) and biomass (corn cobs). The apparent activation energy fluctuates in the range of 120–260 kJ/mol with the conversion, according to Flynn‐Wall‐Ozawa (FWO) and Kissinger‐Akahira‐Sunose (KAS) kinetic methods. Notably, for co‐pyrolysis the apparent activation energy is lower (168 kJ/mol using FWO) than the individual biomass (179 kJ/mol using FWO) and plastic (175 kJ/mol using FWO), suggesting a positive synergistic effect during charring. The liquid crude and char product analysis from corn cob pyorlysis through FTIR and XRD confirms the application of the products in energy and chemical processes. The results obtained in this study can be utilized for co‐pyrolysis reactor analysis specifically using waste plastic bottles that are accumulating in the environment.

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Fast co-pyrolysis characteristics of polyethylene terephthalate and epoxy resin from waste wind turbine blades

Yao,

Cao,

Rao

et al. 2024

Journal of the Energy Institute

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Synergistic Effects for Co-pyrolysis of Epoxy Resin and Polyurethane from Retired Wind Turbine Blades

Cited by 5 publications

References 40 publications

Experimental Study on Microwave Pyrolysis of Decommissioned Wind Turbine Blades Based on Silicon Carbide Absorbents

Experimental Study on Microwave Pyrolysis of Decommissioned Wind Turbine Blades Based on Silicon Carbide Absorbents

Co‐Pyrolysis and Pyrolysis of Corn‐Cob Biomass and Waste Plastic: Comprehensive Study Based on Kinetic and Thermodynamic Approach

Fast co-pyrolysis characteristics of polyethylene terephthalate and epoxy resin from waste wind turbine blades

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