Modelling pyrolysis process for CFRP recycling in a closed-loop supply chain approach
Résumé
Several pathways have been investigated to recycle Carbon Fibre Reinforced Polymers (CFRP), that have been increasingly used in a wide range of applications such as automotive, aerospace and renewable energy. Pyrolysis is currently considered to be the only process that is available on an industrial scale. Yet to our knowledge, no study based on process systems engineering concepts has been performed in order to evaluate the environmental gain that can be obtained from the production of the very energy-intensive production of virgin carbon fibres. In this work, a pyrolysis recycling process of a capacity of 1500 tonnes/year has been modelled by using Aspen Hysys v8.6 simulation software to evaluate the avoided environmental impacts using a Life Cycle Assessment approach, and in particular, those related to Global Warming Potential (expressed in kg CO2 eq.). A functional unit based on the recycling of 1 kg of carbon fibre reinforced polymers has been considered. An economic evaluation has also been carried. The objective is to use these results in order to build the process echelon of the CFRP recycling supply chain based on reliable data
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