Improved control on the microwave devulcanizing of ground tire rubber by means of sulphur gas sensors
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URI: http://hdl.handle.net/10317/13297Compartir
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Pérez Campos, Rafael; Fayos Fernández, José; Monzó Cabrera, Juan; Díaz-Morcillo, Alejandro Benedicto; Martínez González, Antonio Manuel; [et al.]Área de conocimiento
Teoría de la Señal y las ComunicacionesPatrocinadores
This research project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement number 870000. More information at https://valuerubber.eu/. The authors acknowledge CETEC and Synthelast for the GTR powder. Authors would like to extend the gratitude to Mr. Juan Antonio Albaladejo-López for his help with the mechanical development of the set upFecha de publicación
2021Editorial
Rise Research Institute of SwedenCita bibliográfica
Rafael Pérez-Campos, José Fayos-Fernández, Juan Monzó-Cabrera, Alejandro Díaz-Morcillo, Antonio Martínez-González, Antonio Lozano-Guerrero, "Improved control on the microwave devulcanizing of ground tire rubber by means of sulphur gas sensors", AMPERE 2021 Proceedings - 18th International Conference on Microwave and High Frequency Applications, pp. 146-153, 2021Palabras clave
MicrowaveIndustrial applications
Measurement technology
Processing
Residue/Side-stream
Material interaction
Resumen
The success of a Ground Tire Rubber (GTR) devulcanization process relies on the elimination of the Sulphur atoms that are crosslinking the rubber polymer. From the Chemical point of view, this requires providing enough energy to break the Sulphur bonds while preserving the Carbon bonds, to ensure a high quality devulcanized GTR for being of interest to the rubber manufacturing industry. GTR is very responsive to microwaves due to the presence of Carbon Black (CB) in its composition, so the radiant energy is absorbed quickly in the form of thermal energy. When its temperature reaches 140°C, the breakage of Sulphur bonds may happen under an exothermic reaction, but also some new links might be built under that condition. Therefore, from the Physical point of view, the released Sulphur in the gaseous form of SO2, H2S, and/or CS2 must be promoted to abandon the reactor to avoid its recombination. In this work, microwave devulcanization is monitored by detecting the concentration of Sulphurous ...
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