Feedstock recycling of cable plastic residue via steam cracking on an industrial-scale fluidized bed
Artikel i vetenskaplig tidskrift, 2024

The use of plastic materials in a circular way requires a technology that can treat any plastic waste and produce the same quality of product as the original. Cable plastic residue from metal recycling of electric wires is composed of cross-linked polyethene (XLPE) and PVC, which is a mixture that cannot be mechanically recycled today. Through thermochemical processes, polymer chains are broken into syngas and monomers, which can be further used in the chemical industry. However, feedstock recycling of such a mixture (XLPE, PVC) has been scarcely studied on an industrial scale. Here, the steam cracking of cable plastic was studied in an industrial fluidised bed, aiming to convert cable plastics into valuable products. Two process temperatures were tested: 730 °C and 800 °C. The results show that the products consist of 27–31 wt% ethylene and propylene, 5–16% wt.% other linear hydrocarbons, and more than 10 wt% benzene. Therefore, 40%–60% of the products are high-value chemicals that could be recovered via steam cracking of cable plastic.

Cable plastic waste

Fluidised bed

Steam cracking

Feedstock recycling


Isabel Cañete Vela

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Jelena Maric

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Judith González Arias

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Universidad de Sevilla

Martin Seemann

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik


0016-2361 (ISSN)

Vol. 355 129518



Kemiska processer

Annan kemiteknik


Metallurgi och metalliska material



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