Dynamic process safety assessment by mapping ALOHA simulation into BOW-TIE analysis: application to packed bed reactor in production of Methanol Route 2 / Nor Azleen Natasya Az’bey

Numerous accidents have occurred since the start of industrial growth. When something like this happens, it not only results in losses for business owners but also damages the environments, peoples, and animals. Most of the time, these mishaps are the result of ignorance or equipment malfunction. Methodology that contains hazard identification, risk assessment, risk or hazard acceptance, risk control and propose unit operation are the method used in preventing any major accident from occur. In order to make this methodology work successfully, the combination of BOW-TIE analysis and ALOHA software are needed. BOW-TIE analysis is an easy method for determining areas where additional or improved controls may be beneficial. Meanwhile ALOHA software help in predicted the threat zone and difficulty in modelling the hazard. This can be seen in the case study given, the production of Methanol 2. There are a few threat zone that generated from the production of Methanol 2. For example, Methanol. From many chemical involve in the production of Methanol 2, Methanol was the worst one. This can be seen after the comparison of all results. From the results, Methanol from the tank sources has the largest threat zone compare to other chemical which mean that if accident happen, Methanol will have the worst consequences. As a conclusion, the combination of BOW-TIE analysis and ALOHA software has been successfully use to overcome the limitation that have been faced by numerous engineers before this in order to prevent any major accidents from occur in the future by giving accurate threat zone hazard and risk consequences. Not only that, the combination of BOW-TIE analysis and ALOHA software also help in