A methodological warning against importing ideal-column conclusions into whiskey practice without checking the actual mixture and equipment.
The author states the modeling simplifications before deriving the core equations.
The unified analysis deliberately reduces the problem by assuming, among other things, constant relative volatilities for ideal mixtures, constant flow or enthalpy, steady countercurrent operation except for simple distillation, adiabatic behavior, and idealized mass-transfer sections. These assumptions define where the derived results can and cannot be applied directly.
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Chapter 2, Assumptions and problem reduction
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