The Startup and Upset Recovery Log is a cryogenic digital download designed to help nitrogen plant and ASU operators systematically document events, actions, and observations during start-up sequences, load transitions, disturbances, and upset recovery. This structured logging tool improves operational clarity, supports faster stabilization, enhances shift-to-shift communication, and provides a traceable record for troubleshooting, RCA, and performance audits.

What This Startup & Upset Recovery Log Covers

• Timestamped event recording sections

• Fields for pressure, temperature, ΔP/ΔT, and purity readings

• Operator action log for immediate response tracking

• Notes for abnormalities, alarms, and process behavior

• Stabilization progress tracker during upset recovery

• Shift handover communication notes

• RCA-friendly data collection for later analysis

Who This Startup and Upset Recovery Log Is For

• ASU & nitrogen plant operators

• Commissioning engineers

• Troubleshooting teams

• Shift supervisors & control room engineers

• EPC start-up personnel

When To Use Startup and Upset Recovery Log

• During cold box cool-down and plant startup

• When responding to purity drift or column instability

• During compressor load changes or transitions

• When recovering from a trip, alarm, or abnormal event

• For documenting troubleshooting steps and outcomes

• During audits, RCAs, and operational reviews

✅ 3. Why This Startup and Upset Recovery Log Helps

• Provides a clear historical record of events and actions

• Reduces miscommunication between shifts and teams

• Supports consistent troubleshooting and stabilization

• Helps identify repeating patterns across disturbances

• Improves RCA quality with structured data

• Enhances operational discipline and traceability

You may also find these cryogenic digital downloads helpful:

• Troubleshooting Cheat Sheet

• Pressure Stability Diagnostic Sheet

• Startup & Handover Checklists