РО 4.5

Where does the distillate from columns A-701A/B/C/D go?

• Column C-701

• Reactor unit D-702

• Column C-601

• Column D-701

What is the purpose of pump P-907 in the described technological scheme?

• To control the pressure in the discharge line of pump P-907.

• To pump non-condensable product into the storage park

• To release hydrocarbon gas into the emergency release tank D-903.

• To control the temperature in tank D-903.

Which parameter is controlled and recorded by position 900-PI-0501?

• Fuel gas consumption for purging

• Pressure of the product in tank D-909

• Temperature of the product in tank D-909

• Level of the product in tank D-909

What is the purpose of the chiller unit PK-901 in the described technological scheme?

• To supply coolant from the mobile vehicles to the D-914 coolant buffer tank.

• To condense the blowdown gas in additional condensers E-656 and E-707.

• To control the temperature at the inlet and outlet of the chiller unit.

• To cool the coolant from 8 °C to 5 °C.

Which parameter is controlled and recorded by position 900-TIC-0104?

• Pressure drop on the filters F-902A/B

• Fuel gas pressure

• Fuel gas consumption

• Temperature of the fuel gas at the outlet of the E-902

What is the purpose of valve V-602 in the system?

• To shut down the entire system in case of emergency.

• To regulate the flow rate of the feed stream into the reactor R-601.

• To control the temperature of the product stream leaving the reactor R-601.

• To prevent backflow from the paraxylene concentration column C-604 to the mixing tank D-607.

What is the function of pumps P-609A/B in the system?

• They shut down the entire system when the maximum flow rate is reached.

• They adjust the pressure of the circulating product.

• They control the flow rate at the inlet of pump P-606 A/C.

• They supply liquid for irrigation of the paraxylene concentration column C-604.

What controls the flow rate of the circulating product at the outlet of pump P-606 A/C and what happens when the minimum flow rate is reached?

• Pos.600-FIA-1503 controls the flow rate and triggers an alarm when the minimum flow rate is reached.

• The temperature sensor controls the flow rate and adjusts accordingly when the minimum flow rate is reached.

• The operator manually controls the flow rate and stops the pumps when the minimum flow rate is reached.

• The pressure sensor controls the flow rate and shuts down the entire system when the minimum flow rate is reached.

What is the purpose of pumps P-609A/B in the system?

• They supply liquid for irrigation of the paraxylene concentration column C-604.

• They shut down the entire system when the minimum flow rate is reached.

• They control the flow rate at the outlet of pump P-606 A/C.

• They adjust the temperature of the circulating product.

What is the purpose of the air cooling unit of the steam column A-653 CC product?

• To supply the C8+ isomerizate to the convection chamber of the raw material furnace of the reactor N-651

• To supply excess distillate to the steam column C-652 as raw materials

• To cool and partially condense vapors from the reflux tank D-652

• To cool the stabilized bottom product of the C-652 column+