Question

The vapor rich section in the distillation column is called as

(a) Rectifying Section

(b) Boiling section

(c) Stripping Section

(d) Leaching section

I had been asked this question in an online interview.

My doubt is from Mccabe Thiele Diagram-Fundamentals topic in portion Key Fractionation Concepts of Distillation Design

Answer 1

In a distillation column, the vapor-rich section is called the Rectifying Section. This section is where the vapor phase is enriched with the more volatile component as it moves upward in the column. It is above the feed tray, where the distillate is condensed, and the concentration of the more volatile component increases.

Thus, the correct answer is (a) Rectifying Section.