Podcast
Questions and Answers
Explain why TK-342 is maintained under a nitrogen blanket, according to the text.
Explain why TK-342 is maintained under a nitrogen blanket, according to the text.
The tank is maintained under a nitrogen blanket to prevent moisture or oxygen contamination.
What is the purpose of E-342 (Caustic Tank Heater) and what heating medium does it use?
What is the purpose of E-342 (Caustic Tank Heater) and what heating medium does it use?
E-342 maintains a specific temperature for the caustic solution in TK-342, using 60 psig steam as the heating medium.
Describe the flow path of fresh caustic from the supplier to P-340A/B.
Describe the flow path of fresh caustic from the supplier to P-340A/B.
Fresh caustic is delivered by a tank truck to TK-342, and then routed to P-340A/B by P-342A/B (Caustic Make-up Pumps).
In the event of a power failure, which piece of equipment would be directly affected and why?
In the event of a power failure, which piece of equipment would be directly affected and why?
Why is TK-342 separated from the tank farm vent system?
Why is TK-342 separated from the tank farm vent system?
Flashcards
TK-342 (Fresh Caustic Storage Tank)
TK-342 (Fresh Caustic Storage Tank)
Stores fresh caustic solution received from off-site suppliers.
E-342 (Caustic Tank Heater)
E-342 (Caustic Tank Heater)
An internal heater within TK-342 that uses 60 psig steam to maintain temperature.
P-342A/B (Caustic Make-up Pumps)
P-342A/B (Caustic Make-up Pumps)
Routes fresh caustic from TK-342 to P-340A/B.
Nitrogen Blanket Purpose
Nitrogen Blanket Purpose
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P-342A/B Pump Type
P-342A/B Pump Type
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Study Notes
- Fresh caustic is supplied via tank truck from an external supplier and loaded into TK-342.
- P-342A/B (Caustic Make-up Pumps) transfer the fresh caustic to P-340A/B.
- TK-342 uses an internal heater, E-342 (Caustic Tank Heater), which utilizes 60 psig steam for heating.
- A nitrogen blanket maintains TK-342 to prevent contamination from moisture or oxygen.
- The tank is isolated from the tank farm vent system to prevent caustic contamination.
TK-342 (Fresh Caustic Storage Tank)
- TK-342 stores fresh caustic.
- It features a cone roof and a heater.
- Fresh caustic enters the tank from the top and exits from the bottom.
E-342 (Caustic Tank Heater)
- E-342 is an internal heater within TK-342.
- It maintains temperature using 60 psig steam as the heating medium.
P-342A/B (Caustic Make-up Pumps)
- P-342A/B are single-stage centrifugal pumps.
- They are powered by 1 HP 0.7 GPM horizontally-mounted, induction electric motors.
- P-342A/B pumps route fresh caustic from TK-342 to P-340A/B.
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