Continuous Distillation (Shortcut): Comp. Separation Tab

Variable Definitions, Ranges and Default Values

The following table shows a brief description of the variables appearing in this tab. The table also displays their default values and their generally acceptable range:

Variable	Default Value	Range

● Relative Volatility at Top Temp. The relative volatility of a component w.r.t the heavy key, calculated at the temperature of the condenser	0.0	Positive
● Relative Volatility at Bottom Temp. The relative volatility of a component w.r.t the heavy key, calculated at the temperature of the reboiler	0.0	Positive
● Average Relative Volatility The geometric mean of the relative volatilities at the top and bottom temperatures	0.0	Positive
◙ Relative Volatility Used The relative volatility used in the model calculations	0.0	Positive
○ Percent in Distillate (%) Component molar percentage in the distillate stream	0.0	0 – 100
○ Light Key The light key component name	(none)	Comp. Name
○ Heavy Key The heavy key component name	(none)	Comp. Name

Symbol Key: ○ User-specified value (always input); ● Calculated value (always output); ◙ Sometimes input, sometimes output

Specification Choices / Comments

R/R_min and Vapor Linear Velocity are input in Design Mode and output in Rating Mode. For more details on how these variables are implemented, see Continuous Distillation (Shortcut): Modeling Calculations.