Effect of severe operation conditions on the degradation state of radiant coils in pyrolysis furnaces

•Tube carburization increases with increasing time and temperature.•Coke weight and thermal expansion are main factors to reduce stress and displacement.•Coke promotes carbon diffusion and alloy property changes.•Coil lifetime can be extended by tuning service temperature and the amount of coke weig...

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Veröffentlicht in:	Engineering failure analysis 2015-10, Vol.56, p.194-203
Hauptverfasser:	Santos, M., Guedes, M., Baptista, R., Infante, V., Cláudio, R.A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Carburization Coils Coke Creep Degradation Failure analysis Furnaces Mathematical analysis Pyrolysis Pyrolysis furnaces Radiant coils Service lifetimes Temperature profiles
Online-Zugang:	Volltext
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