3.4

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

• Column C-601

• Column C-701

• Column D-701

• Reactor unit D-702

What is the purpose of the A-701A/B/C/D apparatus?

• Condensing and cooling the vapors from column C-601

• Separating aromatic hydrocarbons C9-C10

• Separating aromatic hydrocarbons C11+

• Supplying acute irrigation to column C-701

Which column is responsible for separating C9 and C10 from heavier compounds?

• C-601

• C-701

• D-701

• D-702

What is the purpose of the heat exchanger E-702?

• Activating the catalyst

• Dividing the gas-raw mixture into eight parallel flows

• Separating C9 and C10 from heavier compounds

• Cooling the raw material

What happens to the cubic product of column C-701?

• It is sent to the H-701 furnace

• It is stored in the tank farm

• It is divided into six parallel streams

• It is mixed with toluene

Which pump is used to feed the raw materials for section 650-isomerization of xylenes at HUMAKH; from the container of the side shoulder of the raffinate column D-610

• Pump R-613A/B

• Pump R-612 A

• Pump C-609 A/B

• Pump R-508 A

How is the raw pas mixture from the E-652 heat exchanger heated in the section 650 Isomerization of xylenes at HUMAKH

• It is heated in four parallel streams.

• It is heated in six parallel streams.

• It is heated in eight parallel streams.

• It is heated in ten parallel streams.

What is the main column in section 650?

• R-651

• D-610

• D-651

• R-608

Where do the cooled vapors from the C-651 column enter in the section 650-isomerization of xylenes at HUMAKH

• They enter the irrigation tank of the D-652 deheptanization column, equipped with a pocket for collecting benzene water.

• They enter the C-653 heat exchanger for further cooling.

• They enter the D-650 reactor for the isomerization process.

• They enter the purification unit for removal of impurities.

What is the purpose of the S-652 stripping column?

• To stabilize the benzene-toluene fraction

• To cool and partially condense vapors from the top of the C-651 deheptanization column

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

• To extract benzene from the vapor-gas phase from the reflux tank D-652