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Stepwise pyrolysis for recycling of plastic mixtures
Author(s) -
Bockhorn Henning,
Hornung Andreas,
Hornung Ursel
Publication year - 1998
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19981350107
Subject(s) - polystyrene , pyrolysis , polyethylene , polyamide , vinyl chloride , materials science , polymer , decomposition , styrene , chemical engineering , hydrogen chloride , polyvinyl chloride , thermal decomposition , polymer chemistry , organic chemistry , composite material , copolymer , chemistry , engineering
For chemical recycling of plastic refuses a cascade of cycled‐spheres reactors has been developed combining separation and decomposition of polymer mixtures by stepwise pyrolysis at moderate temperatures. In low‐temperature pyrolysis, mixtures of poly(vinyl chloride), polystyrene and polyethylene or polystyrene, polyamide 6 and polyethylene have been separated into hydrogen chloride, styrene and polyamide 6 and aliphatic compounds from polyethylene decomposition. Compared with the low‐temperature pyrolysis of the single components, some interactions between the polymers are found when pyrolyzing mixtures. Some mechanistic aspects of these interactions are discussed.