A methodology for identifying and addressing dead-legs and corrosion issues in a Process Hazard Analysis (PHA) |
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Institution: | 1. Dipartimento di Scienze dell''Ingegneria Civile e dell''Architettura, Politecnico di Bari, 70125 Bari, Italy;2. Department of Mechanical Engineering, Milwaukee School of Engineering, 53202 Milwaukee, WI, USA;3. School of Civil and Environmental Engineering, Cornell University, 14853 Ithaca, NY, USA |
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Abstract: | Identifying dead-legs and related corrosion issues continues to be a challenge in the process industry. Pipeline corrosion has been a factor in several recent incidents involving releases and fires. A review of incident reports and citations over the past ten years indicates that Process Hazard Analysis (PHA) revalidations have been noted for not addressing the hazards of a process including corrosion mechanisms and dead-legs. In order for the hazards to be addressed, they must first be accurately identified in a PHA and documented along with any recommended actions for preventive maintenance. This paper describes a methodology for identifying and addressing dead-legs and related corrosion issues in a PHA that can be used to update corporate PHA procedures to be more robust in preventing corrosion related incidents. |
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Keywords: | Process Hazard Analysis (PHA) Corrosion Dead-legs Methodology |
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