(86d) QRA and ERS: an Integrated Approach
AIChE Spring Meeting and Global Congress on Process Safety
2007
2007 Spring Meeting & 3rd Global Congress on Process Safety
2007 Process Plant Safety Symposium
Risk Assessment and Risk Management - New Directions
Wednesday, April 25, 2007 - 9:45am to 10:15am
Quantitative Risk Analysis (QRA) and Emergency Relief System (ERS) Analysis are both components of a successful Process Safety Management Program. While both studies often share the same information, they tend to remain separate, independent, studies. However, at facilities where relief valves can vent toxic and flammable materials directly to the atmosphere, these discharges can be a significant contributor to overall risk.
ioMosaic Corporation has recently performed studies combining QRA and ERS techniques, for major chemical companies. The integrated approach realized many benefits. Efficiency was gained in terms of data collection, data sharing and information management. The existing Emergency Relief System was analyzed for its adequacy; while the Quantitative Risk Analysis considered various hazard scenarios throughout the plant, including relief device discharge.
Using a case study, this paper outlines the methodologies used, and the risk mitigation options proposed. The original projects contain proprietary business information, which has been appropriately edited for the purposes of this paper.