Journal
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
Volume 97, Issue -, Pages 25-36Publisher
INST CHEMICAL ENGINEERS
DOI: 10.1016/j.psep.2015.02.003
Keywords
Process safety; Root cause reasoning; HAZOP; Dynamic Bayesian network
Categories
Funding
- Natural Science Foundation of China [51104168]
- Excellent Doctoral Dissertation Supervisor Project of Beijing [YB20111141401]
- Program for New Century Excellent Talents in University [NCET-12-0972]
- Beijing Natural Science Foundation [3132027]
- Science Foundation of China University of Petroleum [YJRC-2013-35]
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The Bhopal disaster was a gas leak incident in India, considered the world's worst industrial disaster happened around process facilities. Nowadays the process facilities in petrochemical industries have becoming increasingly large and automatic. There are many risk factors with complex relationships among them. Unfortunately, some operators have poor access to abnormal situation management experience due to the lack of knowledge. However these interdependencies are seldom accounted for in current risk and safety analyses, which also belonged to the main factor causing Bhopal tragedy. Fault propagation behavior of process system is studied in this paper, and a dynamic Bayesian network based framework for root cause reasoning is proposed to deal with abnormal situation. It will help operators to fully understand the relationships among all the risk factors, identify the causes that lead to the abnormal situations, and consider all available safety measures to cope with the situation. Examples from a case study for process facilities are included to illustrate the effectiveness of the proposed approach. It also provides a method to help us do things better in the future and to make sure that another such terrible accident never happens again. (C) 2015 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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