Integration of bow tie analysis and ALOHA software for risk and consequences evaluation for heat exchanger in production of acetic acid during chemical process development and design / Muhammad Zaim Zulhilmi Zamri

The top priority of the industry in the current days is the safety and health of the chemical plant. This to ensure the workers could work without any worries and ease the civilian nearby. Despite this effort which has been so much time into there still an accident that related to heat exchanger in the chemical industry plant. Some of them were cause by loss of containment that lead to heat exchanger rupture and cause an explosion. The purpose of this study is to analyse the risk that presence in the heat exchanger for the production of acetic acid in the preliminary stage and do risk analysis using bow tie analysis and ALOHA modelling software and create risk mitigation. Risk analysis using bow tie only provide risk assessment without consequences analysis in detail thus using ALOHA modelling software to show the threat zone of the consequences in diagram. Analysing the result of ALOHA modelling software the most dangerous chemical that could cause the largest area of highest level hazard is the acetic acid with the red threat zone which the highest level of hazard raging around 700 meters. Implementing both bow-tie analysis and ALOHA in the preliminary stage could provide more detail and sophisticated risk analysis and create a prevention method to lowered the chance for the risk to occur.