Toxic Release Route Index for Inherently Safer Design Plant

Over the years, there are many methods have been practiced in the chemical processing plant in order to analyze the hazards. The examples of method usually used are DOW Fire and Explosion Index (DOW FEI), Hazard and Operability Studies (HAZOP), Quantitative Risk Assessment (QRA) and etc. Basically these typical approach of loss and prevention and safety measures are considered at the end of the design process, leaving add-on control measure to be the only option available. The protective measure which added late in the design process requires regular preventive maintenance and lead to increase in the operating costs of the plant as well. Also, many previous studies on inherent safety level (ISL) quantification index based are focusing on processing route. However, most of the work for index based ISL approach focusing on chemical route by using properties of single component only. These indices is lacking of considering the chemical component as a mixture for toxic release. Therefore, the main objective of this work is to develop an inherently safer design technique for process plant using process route index for chemical component as a mixture for toxic release known as Toxic Release Route Index (TRRI). A prototype to perform the tasks of process route screening for inherent safety level quantification (ISL) of toxic release will be developed in this work.