Multicomponent differential distillation

Multicomponent Differential Distillation 494 Dissolved Oxygen and BOD Profiles in a River 572... 

Differential Distillation—Simple Batch, Without Trays, Multicomponent Mixture... 

Batch with Constant Reflux Ratio, 48 Batch with Variable Reflux Rate Rectification, 50 Example 8-14 Batch Distillation, Constant Reflux Following the Procedure of Block, 51 Example 8-15 Vapor Boil-up Rate for Fixed Trays, 53 Example 8-16 Binary Batch Differential Distillation, 54 Example 8-17 Multicomponent Batch Distillation, 55 Steam Distillation, 57 Example 8-18 Multicomponent Steam Flash, 59 Example 8-18 Continuous Steam Flash Separation Process — Separation of Non-Volatile Component from Organics, 61 Example 8-20 Open Steam Stripping of Heavy Absorber Rich Oil of Light Hydrocarbon Content, 62 Distillation with Heat Balance,... 

A rigorous model in batch distillation involves consideration of column dynamics along with the reboiler and condenser dynamics. Distefano presented detailed analysis of the characteristics of differential mass and energy balances associated with the complete dynamics of a multicomponent batch distillation column. Distefano s work forms the basis for almost all of the later work on rigorous modeling of batch distillation columns, and this model is presented below. 

Steam Distillation—Continuous Differential, Multicomponent or Binary... 

The set of differential and algebraic equations given above for modeling multicomponent distillation in a packed column must be integrated numerically in general. The complexity and nonlinearity of the above equations precludes analytical solution in most cases of practical importance. Moreover, because the vapor and liquid streams flow in opposite directions means that, in all but one circumstance—total reflux—several integrations may be required in order to properly solve the equations. An alternative method of solving approximate forms of these equations is discussed in Chapter 14. 

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