(156c) Application of a Property-Based Inherent Safety Quantification Framework for Integrating Risk Assessment into Process Safety Life Cycle
- Conference: AIChE Spring Meeting and Global Congress on Process Safety
- Year: 2018
- Proceeding: 2018 Spring Meeting and 14th Global Congress on Process Safety
- Group: Global Congress on Process Safety
Wednesday, April 25, 2018 - 9:00am-9:30am
The significant challenges of the problem related to the safety parameters are the possible means to represent the associated results for different scenarios and processes. One safety parameter which is very important to a process may not be the critical issue for others. The scope to identify the key root safety parameters from the historical accidental data base can overcome this limitation. Again, most of the time it is very hard to do the techno-economic analysis simultaneously due to the lack of continuous equations to comply with the whole systemâs model.
In this work, an Inherently Safer Designs Tool (i-SDT) is presented for early stage process synthesis to characterize and track the risk associated with different life-cycle phases of industrial processes and products. It also helps to develop characteristic equations for different safety parameters (i.e., flammability, explosiveness, toxicity, etc.) and provides cluster safety parameter score for doing inherent safer design during early stage of design using very limited amount of process information. This property-based inherent safety quantification framework is a tailor made semi-quantitative safety analysis tool which will provide safety assessment in continuous manner to overcome the subjective nature of the existing available safety metric. The proposed safety metric has the flexibility to operate by identifying the major accident prone units of a process, as well as the major safety and operating parameters. Therefore, in future it can be embedded to any techno-economic framework to do the cost and safety analysis simultaneously using available materials, design and accidents information. The developed i-SDT tool was applied for comparing different technologies and sizes of ammonia processes to identify the safer option in terms of risks associated with the accident prone unit/section and to highlight the areas of improvement in any existing process using the inherent safer design principles.
- Roy, N., et al., A review of safety indices for process design. Current Opinion in Chemical Engineering, 2016. 14: p. 42-48.
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