2015 : Hazard and operability study and analysis of safety integrity level case study: ammonia refrigerant compressor at petrochemical plant

Dr. Ir. Ronny Dwi Noriyati M.Kes
Dr.Ir. Ali Musyafa M.Sc.


Abstract

Background: On the refrigeration system at the Petrochemical Plant there ammonia refrigerant compressor 105 J that operating to raise the vapor pressure of ammonia that comes from the refrigerant drum 120 CF flush and keep the pressure on the refrigerant flush drum 120 CF in order to maintain their liquid ammonia product temperature at-33 [degrees] C. To avoid the risks that occur in ammonia refrigerant compressor 105 J we perform the identification of potential Hazard that can occur in the process in ammonia refrigerant compressor 105 J by using Hazard and Operability Analysis (HAZOP) and SIL analysis. In this study determined four nodes consisting of ammonia refrigerant compressor stage 1 to 105 J ammonia refrigerant compressor 105 J stage 4. Based on the identification of 20 instruments are installed on all four nodes, the valve components, namely the level of 1024 which has a high risk based …