Journal of Failure Analysis and Prevention

, Volume 17, Issue 2, pp 228–234 | Cite as

Failure Analysis of a Reactor in Ethylbenzene Unit

Technical Article---Peer-Reviewed
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Abstract

In this study, failure of the cone of a reactor in an ethylbenzene unit of a petrochemical complex has been investigated. The material of the cone was found to be ASME A240 Type 304H which was severely corroded at elevated temperature. The study of the microstructure of the material showed the occurrence of carburization which led to sensitization and resulted in corrosion of the material. The result of the microhardness testing and double-loop electrochemical polarization investigation proved the diffusion of carbon through the material and occurrence of sensitization.

Keywords

Austenitic stainless steel Dehydrogenation Ethylbenzene Sensitization Carburization 

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Copyright information

© ASM International 2017

Authors and Affiliations

  1. 1.Department of Materials Science and Engineering, School of EngineeringShiraz UniversityShirazIran

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