Steam Management in HDS Unit Operations
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Questions and Answers

What happens to the stripper tower when the 180 psig steam flow is lost?

  • The stripper tower will be shut down automatically.
  • The stripper tower will continue to function normally.
  • The stripping capability of the stripper tower will be lost. (correct)
  • The stripper tower will become overheated.

    • If the diesel product from the stripper goes off-spec, where should it be routed?

  • To the Stripper Feed Preheater (13EX-2339).
  • To the re-run tank.
  • To the slop tank.
  • To Tank TK-314. (correct)

    • Which step involves venting steam traps to the atmosphere?

  • Step 6
  • Step 5
  • Step 8 (correct)
  • Step 10

    • What is the purpose of cracking open the low-point bleed at FC-0171 stripping steam control valve?

    <p>To prevent condensate buildup. (B)</p> Signup and view all the answers

    What should be done if the 180 psig steam supply is not returned to service quickly?

    <p>Shut down the unit as per SOP-3HDS-201 Normal Unit Shutdown procedure. (C)</p> Signup and view all the answers

    In the event of a loss of 180 psig steam to the #3 HDS Unit, what is the immediate action to be taken regarding feed rates?

    <p>Decrease feed rates to the #3 HDS Unit. (A)</p> Signup and view all the answers

    Which piece of equipment utilizes 180 psig steam primarily during decoking?

    <p>13HT-101 Charge Heater (C)</p> Signup and view all the answers

    Which of the following is NOT a primary user of 180 psig steam in the #3 HDS Unit?

    <p>De-ethanizer Tower (B)</p> Signup and view all the answers

    What is the primary concern related to a loss of steam in the #3 HDS Unit?

    <p>All of the above (D)</p> Signup and view all the answers

    In the event of a steam loss, what should the Console Operator do?

    <p>Notify the Shift Supervisor, Unit Supervisor, and other associated Units. (C)</p> Signup and view all the answers

    Flashcards

    Loss of Steam

    The situation when 180 psig steam flow is lost to the Stripper Tower, impacting its ability to operate properly.

    Off-Spec Products

    Products produced that do not meet quality specifications due to loss of steam in the Stripper Tower.

    Bleed Low-Point

    A procedure to crack open low-point bleeds on steam lines to prevent condensate buildup.

    Emergency Actions

    Specific steps to manage equipment and products in response to a loss of steam.

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    Unit Shutdown Procedure

    The established protocol for safely shutting down the unit if the steam supply is not restored quickly.

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    Immediate Emergency Actions

    Steps to respond quickly to a steam loss emergency.

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    Notification process

    Informing key personnel during a steam loss event.

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    Feed rate reduction

    Decrease the input flow to the #3 HDS Unit when steam is lost.

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    Temperature monitoring

    Keeping track of temperatures in the Stripper Tower after steam loss.

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