Effect of different temperature using safety analysis for power to methanol production plant: article

Global warming has become worst for the past 50 years due to the greenhouse effect. Carbon dioxide is the most important greenhouse gases that contribute to global warming. This emission of the CO₂ need to be reduces in order to preserve the Earth. There are strategies to reduce the emission of CO₂, for examples Carbon Captured and Storage (CCS) and Carbon Captured and Utilization (CCU). The example of CO₂ utilization is as the raw material to produce methanol. This methanol can be produced when CO₂ react with hydrogen where the H₂ can be produce in electrolysis of water. The limitation of this plant is that researchers had done the research on CO₂ captured producing methanol but they only focusing on the conversion and selectivity without consider the risk that might occur. Therefore, in this research project, the objectives are to design and simulate power to methanol production plant using different temperature in the reactor and to analyze the risk on the power to methanol production plant using different temperature in the reactor. The plant is designed using Aspen Hysys and the risk that being analyzed is toxicity, vapor cloud explosion and flash fire using Quantitative Risk Assessment (QRA). Threat zone were generated by ALOHA and being export to the MARPLOT to observe the area affected by the case study. It is found that plant 3 with pressure 442 bar and temperature 210⁰C has the highest risk and the safest plant is plant 2 with pressure 76 bar and 280⁰C.