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Scrap tyre recycling process with molten zinc as direct heat transfer and solids separation fluid: A new reactor concept

Every year about 1.5 billion tyres are discarded worldwide representing a large amount of solid waste, but also a largely untapped source of raw materials. The objective of the method was to prove the concept of a novel scrap tyre recycling process which uses molten zinc as the direct heat transfer...

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Detalles Bibliográficos
Autores principales: Riedewald, Frank, Goode, Kieran, Sexton, Aidan, Sousa-Gallagher, Maria J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4885139/
https://www.ncbi.nlm.nih.gov/pubmed/27274458
http://dx.doi.org/10.1016/j.mex.2016.05.003
Descripción
Sumario:Every year about 1.5 billion tyres are discarded worldwide representing a large amount of solid waste, but also a largely untapped source of raw materials. The objective of the method was to prove the concept of a novel scrap tyre recycling process which uses molten zinc as the direct heat transfer fluid and, simultaneously, uses this media to separate the solids products (i.e. steel and rCB) in a sink-float separation at an operating temperature of 450–470 °C. This methodology involved: • construction of the laboratory scale batch reactor, • separation of floating rCB from the zinc, • recovery of the steel from the bottom of the reactor following pyrolysis.