Analisis Risiko Overpressure Pada Propylene Recovery Unit Dengan FMEA
DOI:
https://doi.org/10.36456/wkscyx49Abstract
The Propylene Recovery Unit (PRU) is exposed to overpressure risk caused by process control disturbances, instrumentation failures, pressure protection failures, and human error. This study aimed to analyze overpressure risk in a PRU using Failure Mode and Effects Analysis (FMEA). Data were obtained through process observation, literature review, and severity, occurrence, and detection assessment of critical components. Eight failure modes were identified: uncontrolled distillation column pressure, stuck PRV/PSV, pressure transmitter error, stuck control valve, pressurized pipe leakage, heat exchanger fouling, HIPPS failure, and operational human error. The results showed that operational human error had the highest RPN of 280, followed by pressure transmitter error with 245, stuck PRV/PSV with 240, and stuck control valve with 240. These findings indicate that overpressure risk is influenced by human factors, instrumentation reliability, pressure protection, and process control performance. Recommended mitigations include operator training, instrumentation calibration, PRV/PSV testing, and control valve improvement.
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