HDSO - Loss of Natural Gas

Question 1

1.1 IMMEDIATE ACTIONS

CCR/Oper 1.1.1 DETERMINE reason for Natural Gas loss and length of time before Natural Gas is returned to service.

Answer 1

1.2.2 - CLOSE the following valves on LT HDS Unit Heaters:

Question 2

Oper
*Pilot Gas Cock vlaves to 630 Rx Feed Heater (630F0001)
*Pilot Gas Cock valves to 631 Rx Feed Heater (631F0002)
*Pilot Gas Cock valves to 632 Rx Feed Heater (632F0001)
*Pilot Gas Cock valves to 632 Light Ends Fractionator Heater (632F0002)

Answer 2

1.2 SUPPLEMENTAL ACTIONS

1.2.1 - NOTIFY the following of a Loss of Natural Gas:

Question 3

CCR/Oper
*SHIFT Supervisor
*Fuel Department

Answer 3

CCR/Oper 1.2.2 - ENSURE the SIS system tripped the Pilot Gas Chopper valve to the CLOSED position.

THIS IS THE END OF THE PROCEDURE