Abstract
Chemicals accidents cause various hazards and a lot of damage. In order to prevent chemical accidents, various risk assessments are conducted in Korea. Among them, the Bow-tie risk assessment technique is a technique that displays the cause and effect of an accident on a line and is used widely in foreign countries. The semi-quantitative Bow-tie technique is a technique based on LOPA(Layer of Protection Analysis), which evaluates the appropriateness of protective measures derived from qualitative risk assessment. Acrylic acid is used as a main raw material for polymeric materials, and interest has been increasing due to the problems of supply and safety caused by the recent BASF fire accident. In this study, we compared the Bow-tie technique with the risk assessments currently used in Korea, and conducted a risk assessment on the polymerization process, which is the main use process of acrylic acid. As a result, a total of 8 new protective measures were derived, and it was verified by semi-quantitative Bow-tie technique. Based on the result of Bow-tie risk assessment, the acryl resin process was improved to reduce the risk. This confirms the usefulness of qualitative Bow-tie risk assessment and semi-quantitative Bow-tie risk assessment, and may be useful in other domestic chemical processes.
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