Question

Which of the following assumes constant molal vaporization and overflow?

(a) McCabe Thiele method

(b) Ponchan Savarit Method

(c) Enthalpy concentration method

(d) Plate absorption method

This question was posed to me during an interview.

I need to ask this question from Minimum Reflux for System Containing Distributed Monkeys in chapter Column Process Design, Optimization and Shortcut Calculations of Distillation Design

Answer 1

Right option is (a) McCabe Thiele method

The best I can explain: The McCabe Thiele method assumes constant molal vaporization and overflow, while the Ponchan Savarit Method is based on the enthalpy balance of components.