Cradle to Gate
Identity ID
da819867-2b29-42de-abda-960e18fe037e
Waste treatment
Associated ID
dc61630a-6dbe-4e5e-9169-1e4574e00778
Included activities starts
Included activities ends
Description
This dataset focuses on the pyrolysis separation and recovery process of CFRP waste, covering the core processes of waste cutting and pyrolysis separation; it includes the main raw and auxiliary material consumption, energy consumption and pollutant emissions of the production process, and infrastructure such as the manufacture of production equipment and plant construction is not included within the boundary; the data inventory is integrated based on industrial practice data and experimental verification results; recycled carbon fibre (rCF) can be used as a reinforcing material for the remanufacturing of CFRP, achieving resource recycling.
Activity Description
This production activity uses CFRP waste as raw material, which is first cut into small pieces that meet the equipment requirements by a water jet cutting machine; then, in a pyrolysis system under specific temperature and atmosphere conditions, the resin is decomposed and the fibers are separated, finally yielding recycled carbon fiber (rCF) as well as by-products such as condensable fractions, hydrogen, and methane.
Process Description
Recycled carbon fiber (rCF) is a core product recovered from carbon fiber reinforced polymer (CFRP) waste through pyrolysis separation technology. CFRP waste mainly comes from prepregs during production, structural damage parts during use, and end-of-life waste. rCF retains more than 97% of the single-filament tensile strength of the original carbon fiber and generates oxygen-containing functional groups such as COOH on the surface, which helps improve interfacial adhesion with the resin. It can be used to remanufacture CFRP products in applications such as automotive and aerospace.
Time period
2017
2026
Geography
China
Geography comment
The recycling factory corresponding to the data set is located in China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
After the CFRP waste is cut into small pieces (≤30 cm × 30 cm × 1 cm) by water jet, it is fed into the pyrolysis equipment. Under a specific temperature (600–700 °C) and an inert or controlled atmosphere, the resin matrix decomposes into gases (hydrogen, methane, hydrocarbons, etc.) and oil by-products, while the carbon fibers are separated from the waste to obtain rCF. Key process parameters include temperature, residence time, and atmosphere composition, which directly affect rCF performance and recycling efficiency.