Process Fundamentals

CO2 Absorber Corroded Wall Thickness & Weld Building

Every turnaround (TA) done CO2 Absorber corroded wall thickness weld building – a perennial problem resolved.

Renewing the CO2 stripper collapsed internal trays was a recurring and expensive turnaround job since plant commissioning a decade ago.

The author root cause analyzed the near miss incident of compressor anti-surge control to resume production and surge prevention.

Root Cause Analysis (RCA): Compressor near ½-RPM frequency high magnitude shaft vibrations.

Root Cause Analysis (RCA): Malfunctioning inlet check valves caused 5-year long chaos at each stop/trip of the compressor.

[RCA] Refrigeration Compressor Turbine Not-tripping when needed Trip Throttle Valve threatened potential compressor wrecks eliminated.

Root Cause Analysis: K-602 Process Air Compressor too frequent & too lengthy overhauls Eliminated. RCA problem and solution provided.

Steam Turbine Driven centrifugal compressors K-601’s IP case discharge temperatures gradually increases & lead to plant shutdown.

Root Cause Analysis (RCA): Persisting K-601 steam turbine driven centrifugal compressors Discharge Head 3‑monthly leaks.

Root Cause Analysis (RCA): Yearly production reduced due to the steam turbine driven centrifugal compressors leak due to broken instrument.