## Chapter 6. *Exact Calculation Procedures for Multicomponent Distillation*

Since multicomponent calculations are trial and error, it is convenient to do them on a computer. Because stage-by-stage calculations are restricted to problems in which an accurate first guess of compositions can be made at some point in the column, matrix methods for multicomponent distillation are commonly used because these methods do not require a good guess of compositions.

### 6.0 Summary—Objectives

In this chapter we develop matrix methods for multicomponent distillation. When finished studying this chapter, you should be able to satisfy the following objectives:

**1.** Use a matrix approach to solve the multicomponent mass balances

**2.** Use bubble-point calculations to determine ...