Distillation Theory and Its Application to Optimal Design of Separation Units presents a clear, multidimensional geometric representation of distillation theory that is valid for all distillation column types, splits, and mixtures. This representation answers such fundamental questions as: * What are the feasible separation products for a given mixture? * What minimum power is required to separate a given mixture? * What minimum number of trays is necessary to separate a given mixture at a fixed power input? Concepts are reinforced by chapter exercises using free DistillDesigner software, which provides quick and reliable solutions to problems of flowsheet synthesis and to optimal design calculations. This software allows refinement and confirmation of the algorithms of optimal design. This book is intended for students and specialists in the design and operation of separation units in the chemical, pharmaceutical, food, wood, petrochemical, oil-refining, and natural gas industries and for software designers.