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VPS 5 > Flashed Crude System and CDU HTRS (1-4) > Flashcards

Flashed Crude System and CDU HTRS (1-4) Flashcards

1
Q

What is the purpose of the back pressure regulators that are located after the desalters but before the flash drum?

A

To create a drop in pressure from the desalters into the flash drum

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2
Q

What is the pressure are the back pressure regulators holding on the desalters?

A

195psig

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3
Q

What is the pressure of the flash drum?

A

40psig

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4
Q

What is the purpose of the pressure drop that is created from the back pressure regulators into the flash drum?

A

This sudden drop in pressure flashes off the light ends in the crude

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5
Q

What happens to the light ends that flash off in the flash drum?

A

The light materials flow overhead and tie in after HTRS 1-4 and before the inlet of the CDU Col.

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6
Q

What are the internal components of the flash drum?

A
  • Schopentoeter Feed Distributor

* Vortex Breaker

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7
Q

What are the inputs of the flashed crude system?

A

Desalted crude

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8
Q

What are the catalysts that are used in the flashed crude system?

A

• Selective Catalytic Reduction (SCR)

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9
Q

What are the chemicals that are used in the flashed crude system?

A
  • Caustic Solution (NaOH, 2.5%wt)

* Aqueous Ammonia (NH3)

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10
Q

What are the outputs of the flashed crude system?

A

Flashed Crude

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11
Q

What are the waste streams of the flashed crude system?

A

Flue Gas

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12
Q

What are the numbers of the CDU Heaters?

A
  • 1 & 2

- 3 & 4

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13
Q

Where do the flashed crude trains seperate?

A

After the Flashed crude pumps

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14
Q

What is the temperature after the flash crude excangers?

A

600 degrees

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15
Q

What is the temperature after the CDU Heaters?

A

700 degrees

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16
Q

Which Trains flow to which CDU Heaters?

A

Train 1 - CDU HTR 1 & 2

Train 2 CDU HTR 3 & 4

17
Q

The flow of Flashed Crude Train 1 & 2 are identical, what is the flow?

A
  • 2 MCR
  • 1 Diesel
  • 1 HVGO
  • 2 Vac Resid
  • 4 HVGO
  • 2 Vac Resid
  • 4 HVGO
  • 2 LCR
  • 4 Vac Resid
  • 2 DWO
  • 4 Vac Resid
18
Q

How many exchangers are in each train of the flashed crude exchangers?

A

28 exchangers

VPS 5 (3 decks)

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