A holistic framework for process safety and security analysis. (September 2022)

• Record Type: Journal Article
• Authors: Amin, Md. Tanjin; Khan, Faisal; Halim, Syeda Z.; Pistikopoulos, Stratos
• Is Part Of: Computers & chemical engineering. Volume 165(2022)
• Publication Date: 2022-09
• Subjects: Risk assessment -- Safety analysis -- Security analysis -- Bayesian network -- Cyber attack; ACC American Chemistry Council -- API American Petroleum Institute -- ARP address resolution protocol -- BN Bayesian network -- BT bowtie -- CCPS Centre for Chemical Process Safety -- CPI chemical process industry -- CPS cyber-physical system -- CSTH continuous stirred tank heater -- DDoS distributed denial of service -- DoS denial of service -- ET event tree -- FMEA failure mode and effect analysis -- FT fault tree -- GPS global positioning system -- HAZOP hazard and operability study -- HMI human-machine interface -- IP internet protocol -- ISIS Islamic State in Iraq and Syria -- LNG liquified natural gas -- OSHA Occupational Safety and Health Administration -- SQL structured query language -- VAM-CFTM vulnerability assessment methodolo gy for chemical facilities against terrorist attacks; Chemical engineering -- Data processing -- Periodicals; 660.0285
• DOI: 10.1016/j.compchemeng.2022.107963
• Languages: English
• ISSNs: 0098-1354

Abstract

Abstract: System safety analysis is crucial for preventing losses. To prevent losses, modern safety analysis tools need to capture both safety and security-related risks. This work proposes a holistic safety and security analysis framework that considers both the intentional and unintentional causation of risks. At first, the threats to a process system are identified, followed by analyzing the factors that may lead to these threats. Then the mechanisms to neutralize threats using safeguards are discussed. These steps are modelled in a Bayesian network (BN) framework to capture the probabilistic nature of the events and associated factors. The BN model is used to analyze the real-time risk. The proposed framework is used to study four scenarios. A comparison with previous works confirms that the proposed framework provides better understanding and analysis capabilities. This work will serve as a reference point for further development in integrated safety and security analysis.