CHAPTER 11 Separation Columns (Distillation, Absorption ...

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CHAPTER 11. Separation Columns ( distillation , Absorption and Extraction). INTRODUCTION. This CHAPTER covers the design of separating Columns . Though the emphasis is on distil- lation processes, the basic construction features, and many of the design methods, also apply to other multistage processes; such as stripping, Absorption and extraction. distillation is probably the most widely used Separation process in the chemical and allied industries; its applications ranging from the rectification of alcohol, which has been practised since antiquity, to the fractionation of crude oil. Only a brief review of the fundamental principles that underlie the design procedures will be given; a fuller discussion can be found in Volume 2, and in other text books; King (1980), Hengstebeck (1976), Kister (1992). A good understanding of methods used for correlating vapour-liquid equilibrium data is essential to the understanding of distillation and other equilibrium-staged processes.

Distillation column design The design of a distillation column can be divided into the following steps: 1. Specify the degree of separation required: set product specifications. ... This does not alter the basic operation, but complicates the analysis of the process, to some extent. SEPARATION COLUMNS (DISTILLATION, ABSORPTION AND EXTRACTION) 495

  Analysis, Design, Columns, Distillation, Distillation column design, Distillation column