(9a) Lifecycle Management of Protection Layers and Safeguards
AIChE Spring Meeting and Global Congress on Process Safety
2019
2019 Spring Meeting and 15th Global Congress on Process Safety
Global Congress on Process Safety
Independent Protection Layers and Other Safeguards
Monday, April 1, 2019 - 10:30am to 11:00am
A Hazards Register database would be used to contain all the pertinent information related to the risks assessed during all the safety studies performed by the company, whether a PHA, or a MOC review, or an incident investigation. The resolution of each hazard should be available in the Register, and not only the latest resolution but also its evolution (history) starting from the original study. Thus, the assumptions made at every step are kept throughout the life cycle of the plant. The Register should also automatically provide metrics that allow to manage outstanding recommendations and automatically recalculate relevant risk information (e.g., cumulative probability of failure on demand, pfd, from a LOPA study). It should be able to import data from any type of safety study and to export all or part of the data for other uses (e.g., instrument specifications, SIL verification). In order to be effective, the Hazards Register should be easily accessible, be capable of simultaneous use by all plant personnel, and be fully and effortlessly searchable. Such a system was successfully used in a very large project in which over 9,000 safeguards and their justifications were managed. At the end of the project the Hazards Register was transferred to the operating company for continued management of the process risks.
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