What is the name of the refining device where crude oil is separated into its components?

What is the name of the refining device where crude oil is separated into its components?

• A. Coker
• B. Fractionation or fractionating column (also pipestill)
• C. Distillation Column
• D. Reformer

Answer: (B)

Crude oil is separated into components by fractional distillation inside a fractionating column. In this device, heat is used to vaporize the crude oil, and the vapors rise up the column where the temperature gradually decreases. Heavier fractions have higher boiling points and tend to condense lower on the column, while lighter fractions rise higher and condense at higher levels. The column contains trays or packing that promote repeated vaporization and condensation, effectively splitting the mixture into distinct fractions such as naphtha, kerosene, diesel, and heavier oils. This setup is specifically called a fractionation or fractionating column (also known as a pipestill). Other devices mentioned serve different purposes: a coker breaks heavy residues into lighter products via cracking, and a reformer alters molecular structures rather than separating by boiling range. A distillation column is a broader term for the same underlying principle, but the refinery-specific name for this separation is fractionation column.

Crude oil is separated into components by fractional distillation inside a fractionating column. In this device, heat is used to vaporize the crude oil, and the vapors rise up the column where the temperature gradually decreases. Heavier fractions have higher boiling points and tend to condense lower on the column, while lighter fractions rise higher and condense at higher levels. The column contains trays or packing that promote repeated vaporization and condensation, effectively splitting the mixture into distinct fractions such as naphtha, kerosene, diesel, and heavier oils. This setup is specifically called a fractionation or fractionating column (also known as a pipestill).

Other devices mentioned serve different purposes: a coker breaks heavy residues into lighter products via cracking, and a reformer alters molecular structures rather than separating by boiling range. A distillation column is a broader term for the same underlying principle, but the refinery-specific name for this separation is fractionation column.