Podcast
Questions and Answers
What is the purpose of blocking in the 180 psig steam at the Stripper Tower Feed Preheater (13EX-2339)?
What is the purpose of blocking in the 180 psig steam at the Stripper Tower Feed Preheater (13EX-2339)?
- To prevent excessive temperatures in the Stripper Tower. (correct)
- To increase the pressure within the Stripper Tower.
- To prevent backflow through a possible failed check valve.
- To ensure proper operation of the Stripper Tower.
What is the purpose of shutting down the Hydrogen Compressor (13C-101/102)?
What is the purpose of shutting down the Hydrogen Compressor (13C-101/102)?
- To reduce the pressure within the Reactors.
- To bring the Unit to a safe state. (correct)
- To prevent excessive temperatures in the Stripper Tower.
- To prevent backflow through a possible failed check valve.
What is the first step in the Supplementary Actions?
What is the first step in the Supplementary Actions?
- Close isolation valves on the lean amine supply.
- Shut down all applicable pumps.
- Block in the discharges of the Feed Charge Pumps. (correct)
- Monitor instrument air pressure.
What is the purpose of closing the isolation valves on the lean amine supply to the Absorber (13PV-2306)?
What is the purpose of closing the isolation valves on the lean amine supply to the Absorber (13PV-2306)?
What is the primary concern after the Unit has been shut down and stabilized?
What is the primary concern after the Unit has been shut down and stabilized?
What is the first step to take in the event of a loss of instrument air in the #3 HDS unit?
What is the first step to take in the event of a loss of instrument air in the #3 HDS unit?
What should be done once instrument air has returned, depending on the duration of the outage?
What should be done once instrument air has returned, depending on the duration of the outage?
Which of the following procedures are referenced for unit shutdown and start-up after an emergency shutdown?
Which of the following procedures are referenced for unit shutdown and start-up after an emergency shutdown?
What is the primary purpose of the Sinclair LOTO procedure?
What is the primary purpose of the Sinclair LOTO procedure?
What is the recommendation regarding this document after the procedure is completed?
What is the recommendation regarding this document after the procedure is completed?
Where should non-essential personnel go when there is a loss of instrument air in the #3 HDS Unit?
Where should non-essential personnel go when there is a loss of instrument air in the #3 HDS Unit?
What is the initial action to take when the unit depressurizing valve malfunctions and goes to a failed open position?
What is the initial action to take when the unit depressurizing valve malfunctions and goes to a failed open position?
What happens to the control valves on the #3 HDS Unit when instrument air is removed?
What happens to the control valves on the #3 HDS Unit when instrument air is removed?
Which of the following departments should NOT be notified in case of instrument air loss in the #3 HDS Unit?
Which of the following departments should NOT be notified in case of instrument air loss in the #3 HDS Unit?
What is the primary concern in cases of extreme pressure drop in the #3 HDS Unit?
What is the primary concern in cases of extreme pressure drop in the #3 HDS Unit?
Flashcards
Instrument Air Loss Notification
Instrument Air Loss Notification
Immediate notification to all personnel to evacuate the unit area.
Departments to Notify
Departments to Notify
Key departments that must be informed about the loss of instrument air.
Control Valve Fail Safe
Control Valve Fail Safe
Control valves revert to a safe position when air pressure is lost.
Immediate Actions on Valve Failure
Immediate Actions on Valve Failure
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Condition Assessment
Condition Assessment
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Closing Isolation Valves
Closing Isolation Valves
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Evaluating Unit Condition
Evaluating Unit Condition
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Preparation for Maintenance
Preparation for Maintenance
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SOP-3HDS-201
SOP-3HDS-201
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SOP-3HDS-102
SOP-3HDS-102
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Hydrogen Compressor Shutdown
Hydrogen Compressor Shutdown
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Pump Shutdown
Pump Shutdown
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Monitor Reactor Temperatures
Monitor Reactor Temperatures
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Block Feed Charge Pumps
Block Feed Charge Pumps
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Close Isolation Valves
Close Isolation Valves
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