Layer of Protection Analysis (LOPA) - Case Studies and Experiences

Today, LOPA is commonly used to evaluate process risk, and continues to gain popularity both within and outside of the petrochemical industry. Basic LOPA remains an attractive risk assessment technique, with its conservative assumptions, ease of use and semi-quantitative results. Further, improvements and refinements to the original approach have occurred in recent years, permitting the technique to be applied on a broader scale with greater resolution. Despite these benefits, challenges remain with integration of LOPA into PHA work, Revalidation cycles and Corporate Risk Programs. This session welcomes papers involving case studies in risk assessment, SIL determination, and application of LOPA in traditional and non-traditional industries. Particular emphasis on advancing LOPA into the future will be given priority.