Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

230 PST > 230 PST > Flashcards

230 PST Flashcards

1
Q

Where is the treated gas overhead from the Amine Contactor sent?

a. Low Line
b. Amine Knockout Drum
c. Gathering Line
d. Flare

A

Amine Knockout Drum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the approximate Compressors second stage discharge pressure?

a. 42-psig
b. 52-psig
c. 62-psig
d. 72-psig

A

62-psig

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Where do the liquids go that collect in the bottom of the Amine Knockout Drums?

a. Rich Amine Pumps
b. Amine Sump Tank
c. Second Stage Drips Pumps
d. Main Amine Contactor

A

Amine Sump Tank

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

At what lube oil pressure will the Compressors auxiliary lube oil pumps automatically start?

a. 20-psig
b. 25-psig
c. 30-psig
d. 35-psig

A

20-psig

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Which of the following process variables can shut down all of the Compressors (C0001A C)?

a. Low-Low gear lube oil pressure
b. High-High suction pressure
c. High-High discharge temperature
d. Low-Low lube oil pressure

A

Low-Low lube oil pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q 
Rich amine loading (RAL) should be maintained below what value to avoid excessive corrosion in
the SRC piping and equipment?
a. 2.5 mole H2S/mole amine
b. 0.5 mole H2S/mole amine
c. 3.5 mole H2S/mole amine
d. 1.5 mole H2S/mole amine
A

0.5 mole H2S/mole amine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q 
The H2S analyzer (38AI0104) measures the H2S concentration in the refinery fuel gas and is located on which
of the following?
a. Low Line
b. High Line
c. Fat Boy Line
d. Fuel Gas Mixing Pot
A

Fuel Gas Mixing Pot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What variable is adjusted to control the Second Stage Compressor discharge temperature?

a. Bypass around the Lean Amine Coolers
b. Liquid flow from the Low Pressure Drips Drums
c. First stage discharge bypass flow around Interstage Coolers
d. Drips flow from the Interstage Knockout Drums

A

First stage discharge bypass flow around Interstage Coolers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is a possible consequence of high sour water level in the Second Stage KO Drum?

a. High level in the Interstage KO Drum
b. Water contamination of drips transferred to 586 Drips Tank
c. Decreased gas flow to the Amine Contactor
d. Hydrocarbon contamination of water transferred to the SRC

A

Water contamination of drips transferred to 586 Drips Tank

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q 
The 230 Gas Plant Process uses three compressors to compress vapor up to approximately
what pressure?
a. 42-psig
b. 52-psig
c. 62-psig
d. 32-psig
A

62-psig

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q 
The hydrogen sulfide (H2S) content of the regenerated amine used in the Main or Spare Amine Contactor is
expressed in what unit of measure?
a. Grains per gallon
b. Parts per million
c. Percent by weight
d. Grams per milliliter
A

Grains per gallon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which of the following is the physical function used to remove H2S from the compressed Low
Line gas and the high pressure High Line gas streams?
a. Combustion
b. Absorption
c. Hydrogenation
d. Stripping

A

Absorption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Why is the temperature of the lean amine to the Main or Spare Amine Contactor maintained at 7-10°F higher
than the feed gas temperature?
a. To prevent condensing of hydrocarbons
b. Extra heat promotes H2S removal
c. To decrease loading on the Lean Amine Cooler
d. To maintain an acceptable rich amine temperature

A

To prevent condensing of hydrocarbons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is used to drive the Compressor’s Cylinder Lube Oil pumps?

a. 125-psig steam turbines
b. Electric motors
c. 550-psig steam turbines
d. Compressor shafts

A

Compressor shafts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which of the following best describes the Main or Spare Amine Contactor?

a. Absorber column
b. Distillation column
c. Fractionation column
d. Extractor column

A

Absorber column

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which of the following process variables can ONLY shut down Compressor C0001B?

a. High-High cylinder vibration
b. High-High Interstage KO Drum level
c. Low-Low turbine gear lube oil pressure
d. Low-Low lube oil pressure

A

Low-Low turbine gear lube oil pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

High pressure gas from the High Line combines with compressed gas from the Second Stage Knockout Drum prior to entering what?

a. In-service Amine Contactor
b. Second-stage Knockout Drum
c. Amine Knockout Drum
d. Low-pressure Drips Drum

A

In-service Amine Contactor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Where are the Low Pressure Drips Drums bottoms normally transferred to?

a. SRC and Drips tanks
b. Drips Tanks
c. In-service Second Stage KO Drum
d. Interstage KO Drums

A

In-service Second Stage KO Drum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q 
What is a potential consequence of liquid carryover from the Amine Knockout Drum to the Fuel
Gas Mixing pot and 236 GTR System?
a. Rich amine contamination
b. Over-pressuring Main Amine Contactor
c. High fuel gas system pressure
d. Shutdown of Sour Amine Pumps
A

Over-pressuring Main Amine Contactor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

At what lube oil pressure will the Compressors auxiliary lube oil pumps automatically start?

a. 32-psig
b. 30-psig
c. 35-psig
d. 25-psig

A

32-psig

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q 
If the process inlet gas temperature to the Main or Spare Contactor is 115°F, what should the Lean Amine
temperature be?
a. 102 to 105°F
b. 112 to 115°F
c. 122 to 125°F
d. 132 to 135°F
A

122 to 125°F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q 
Which of the following is the physical function used to remove H2S from the compressed Low Line gas and the
high pressure High Line gas streams?
a. Stripping
b. Hydrogenation
c. Combustion
d. Absorption
A

Absorption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q 
High pressure gas from the High Line combines with compressed gas from the Second Stage Knockout Drum
prior to entering what?
a. Amine Knockout Drum
b. Second-stage Knockout Drum
c. In-service Amine Contactor
d. Low-pressure Drips Drum
A

In-service Amine Contactor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What do the Lube Oil Filters for the Compressors remove from the circulating lube oil stream?

a. Debris
b. Water
c. Hydrocarbons
d. Salts

A

Debris

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q 
The Sour Water Pumps transfer sour water from the Second Stage Knockout Drums to which
of the following?
a. First Stage Knockout Drum
b. Low Pressure Drips Drum
c. 586 tank in Utilities
d. Sulfur Recovery Complex
A

Sulfur Recovery Complex

26
Q

What does the level controller adjust to control the level in the Main or Spare Amine Contactor?

a. Pressure in the top of the contactor
b. Rich amine release to the SRC
c. Amine from the Amine Sump Tank to the SRC
d. Amine release to the Amine Sump Tank

A

Rich amine release to the SRC

27
Q

The Sour Water Pumps transfer sour water from the Second Stage Knockout Drums to which of the following?

a. First Stage Knockout Drum
b. Low Pressure Drips Drum
c. Sulfur Recovery Complex
d. 586 tank in Utilities

A

Sulfur Recovery Complex

28
Q

What does the Lean Amine temperature controller (TC0005) adjust to control the temperature of
Lean Amine to the Main or Spare Amine Contactor?
a. Number of fans running on the Lean Amine Cooler
b. Overhead pressure in the Main Amine Contactor
c. Bypass around the Lean Amine Cooler
d. Release rate of rich amine from the Main Amine Contactor

A

Bypass around the Lean Amine Cooler

29
Q 
What is a potential consequence of liquid carryover from the Amine Knockout Drum to the Fuel Gas Mixing pot
and 236 GTR System?
a. Shutdown of Sour Amine Pumps
b. High fuel gas system pressure
c. Rich amine contamination
d. Over-pressured Main Amine Contactor
A

Over-pressured Main Amine Contactor

30
Q

What is the approximate Compressors second stage discharge pressure?

a. 52-psig
b. 62-psig
c. 42-psig
d. 72-psig

A

62-psig

31
Q

Which of the following is released to the Fuel Gas Mixing Pot or the 236 GTR System?

a. Liquid hydrocarbon
b. Rich amine
c. Recycle hydrogen
d. Dry Gas

A

Dry Gas

32
Q

Where does the treated gas flow to NEXT after exiting the Main or Spare Amine Contactor?

a. Amine Knockout Drum
b. Fuel Gas Mixing Pot
c. Gathering Line
d. First Stage Compressors

A

Amine Knockout Drum

33
Q

Which of the following best describes what happens inside the Main or Spare Amine Contactor?

a. Gas flows upward through downward flowing amine
b. Gas flows downward through upward flowing amine
c. Amine and gas enter the bottom and separate in the flash zone
d. Amine and gas enter the top and separate in the flash zone

A

Gas flows upward through downward flowing amine

34
Q

What controls the Compressor First Stage suction pressure?

a. First Stage Compressor speed controller
b. High line gas to the Low Pressure Drips Drums
c. Recycled second stage discharge gas
d. First Stage Compressor discharge pressure

A

Recycled second stage discharge gas

35
Q 
Other than the Fuel Gas Mixing Pot in Utilities, where can the treated gas stream from the 230 Gas plant be
sent?
a. 736 Coker Gas Plant
b. 236 Gas Treating and Recovery
c. FCCU Gas Recovery
d. 737 Coker Gas Plant
A

236 Gas Treating and Recovery

36
Q

Where is the treated gas overhead from the Amine Contactor sent?

a. Flare
b. Low Line
c. Amine Knockout Drum
d. Gathering Line

A

Amine Knockout Drum

37
Q

The High Line collects waste gases from units that are already at what pressure?

a. 20-psig or higher
b. 35-psig or higher
c. 50-psig or higher
d. 65-psig or higher

A

50 pig or higher

38
Q

Which flow does the temperature control valve adjust to control the temperature of amine entering the Main or
Spare Amine Contactor?
a. Cooling water through the Lean Amine Cooler
b. Lean amine to the Contactor
c. Bypass around the Lean Amine Cooler
d. Rich amine to the Sulfur Recovery Complex

A

Bypass around the Lean Amine Cooler

39
Q

What is a possible consequence of high sour water level in the Second Stage KO Drum?

a. Decreased gas flow to the Amine Contactor
b. Hydrocarbon contamination of water transferred to the SRC
c. High level in the Interstage KO Drum
d. Water contamination of drips transferred to 586 Drips Tank

A

Water contamination of drips transferred to 586 Drips Tank

40
Q

Which of the following is true about the operation of the Main or Spare Amine Contactor?

a. The lean amine should be warmer than the process gas
b. The process gas should be warmer than the amine
c. The amine and process gas should be the same temperature
d. Pressure is more important than temperature in controlling H2S removal

A

The lean amine should be warmer than the process gas

41
Q

What controls the Compressor First Stage suction pressure?

a. First Stage Compressor discharge pressure
b. Recycled second stage discharge gas
c. First Stage Compressor speed controller
d. High line gas to the Low Pressure Drips Drums

A

Recycled second stage discharge gas

42
Q

What is the normal level range maintained in the Interstage KO Drums?

a. 40 to 50%
b. 30 to 70%
c. 50 to 80%
d. 10 to 40%

A

10 to 40%

43
Q

What is the low-low lube oil pressure trip point for the Compressors?

a. 20-psig
b. 5-psig
c. 15-psig
d. 25-psig

A

20-psig

44
Q

Why is High Line gas not compressed in the 230 Gas Plant System?

a. Gas pressure is already sufficient to enter fuel gas system
b. Too much amine is present in the gas
c. H2S concentration of the gas is too high
d. Gas temperature is too low

A

Gas pressure is already sufficient to enter fuel gas system

45
Q

Which of the following best describes the Main or Spare Amine Contactor?

a. Absorber column
b. Fractionation column
c. Distillation column
d. Extractor column

A

Absorber column

46
Q

The Sour Amine (rich amine) Pumps discharge joins the discharge of what other pump(s)?

a. Amine Sump Pump
b. Second Stage Drips Pumps
c. Sour Water Pumps
d. Low Line Drips Pumps

A

Amine Sump Pump

47
Q

Whether a refinery process releases vapor to the Low Line or the High Line depends on what?

a. Temperature at which it is released
b. Pressure at which it is released
c. Location of the process
d. Ambient temperature

A

Pressure at which it is released

48
Q

Where is the liquid hydrocarbon from the Second Stage Knockout Drums transferred to?

a. Sulfur Recovery Complex
b. 586 Tank in Utilities
c. Low Pressure Drips Drums
d. Main or Spare Amine Contactor

A

586 Tank in Utilities

49
Q

Which of the following is true about the operation of the Main or Spare Amine Contactor?

a. Pressure is more important than temperature in controlling H2S removal
b. The amine and process gas should be the same temperature
c. The process gas should be warmer than the amine
d. The amine should be warmer than the process gas

A

The amine should be warmer than the process gas

50
Q

Low Line gas enters the 230 Gas Plant at approximately what pressure?

a. 6.5-psig
b. 4.5-psig
c. 2.5-psig
d. 0.5-psig

A

0.5-psig

51
Q

What equipment is used to cool the First Stage Compressors discharge gas temperature?

a. Interstage Coolers
b. Low Line Gas Coolers
c. Second Stage Condensers
d. Lean Amine Cooler

A

Interstage Coolers

52
Q

What do the Lube Oil Filters for the Compressors remove from the circulating lube oil stream?

a. Salts
b. Debris
c. Water
d. Hydrocarbons

A

Debris

53
Q

What variable is adjusted to control the hydrocarbon (interface) level in the Second Stage Knockout Drums?

a. Flow of liquid hydrocarbons to 586 Tank
b. Amount of drips flowing to the Second Stage Knockout Drum
c. Flow of low line gas to the Low Line Gas Cooler
d. Amount of drips flowing to the Low Pressure Drips Drum

A

Flow of liquid hydrocarbons to 586 Tank

54
Q

What does the Lean Amine temperature controller (TC0005) adjust to control the temperature of Lean Amine
to the Main or Spare Amine Contactor?
a. Number of fans running on the Lean Amine Cooler
b. Bypass around the Lean Amine Cooler
c. Overhead pressure in the Main Amine Contactor
d. Release rate of rich amine from the Main Amine Contactor

A

Bypass around the Lean Amine Cooler

55
Q

Which of the following best describes the Compressors (C0001A-C)?

a. Multi-stage centrifugal
b. Liquid ring seal
c. Oil filled, dual rotor, rotary screw
d. Two-stage reciprocating

A

Two-stage reciprocating

56
Q

What is the single waste stream produced by the 230 Gas Plant System?

a. Drips
b. Sour water
c. 125-psig steam
d. Rich amine

A

Sour water

57
Q

The High Line collects waste gases from units that are already at what pressure?

a. 50-psig or higher
b. 65-psig or higher
c. 35-psig or higher
d. 20-psig or higher

A

50-psig or higher

58
Q 
Other than the Fuel Gas Mixing Pot in Utilities, where can the treated gas stream from the 230
Gas plant be sent?
a. 737 Coker Gas Plant
b. 236 Gas Treating and Recovery
c. 736 Coker Gas Plant
d. FCCU Gas Recovery
A

236 Gas Treating and Recovery

59
Q

What can happen if the level in the Low Pressure Drips Drums gets too high?

a. Compressor will shut down
b. Interstage Knockout Drum will be bypassed
c. Second-stage Knockout Drum will run dry
d. High process gas flow to the Main or Spare Amine Contactor

A

Compressor will shut down

60
Q

Which of the following is released to the Fuel Gas Mixing Pot or the 236 GTR System?

a. Recycle hydrogen
b. Rich amine
c. Liquid hydrocarbon
d. Dry Gas

A

Dry Gas

61
Q

What is the purpose of demister pads in the Low Pressure Drips Drums?

a. Allows gas to exit the bottom of the drum
b. To remove any H2S in the gas
c. Regulate the gas flow to the compressors
d. Remove entrained liquid from the gas

A

Remove entrained liquid from the gas

230 PST (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions