Page 6 - Separation process principles 2

Preface to the Second Edition

NEW TO THIS EDITION

"Time and tide wait for no man" and most certainly not for engineering textbooks. The
seven years since publication of the first edition of "Separation Process Principles" have
witnessed: (1) advances in the fundamentals of mass, heat, and momentum transport and
wide availability of computer programs to facilitate the application of complex transport
mathematical models; (2) changes in the practice of chemical engineering design; and
(3) restructuring of the chemical engineering curriculum. In response to what we have
noted and what has been pointed out in strong reviews solicited by the publishers, we have
included the following revisions and additions to this second edition:
A new section on dimensions and units to facilitate the use of the SI, AE, and CGS
systems, which permeate applications to separation processes.
The addition to each chapter of a list of instructional objectives.
Increased emphasis on the many ways used to express the composition of chemical
mixtures.
New material on the thermodynamics of difficult mixtures, including electrolytes,
polymer solutions, and mixtures of light gases and polar organic compounds.
Tables of typical diffusivity values.
Table of formulae and meanings of dimensionless groups.
A subsection on the recent theoretical analogy of Churchill and Zajic.
New sections on hybrid systems and membrane cascades.
Discussions of the fourth generation of random packings and high-capacity trays.
A brief discussion of the rate-based multicell model.
New section on optimal control as a third mode of operation for batch distillation.
New discussion on concentration polarization and fouling.
New sections on ultrafiltration and microfiltration.
New subsection on Continuous, Countercurrent Adsorption Systems.
Revision of the subsection on the McCabe-Thiele Method for Bulk Separation by
adsorption.
New subsection on Simulated (and True) Moving Bed Systems for Adsorption.

The following three chapters were not in the first edition of the book, but were available
in hard copy, as supplemental chapters, to instructors. They are now included in the second
edition:
Chapter 16 on Leaching and Washing, with an added subsection on the espresso
machine.
Chapter 17 on Crystallization, Desublimation, and Evaporation.
Chapter 18 on Drying of Solids, including Psychrometry.
In the first edition, each topic was illustrated by at least one detailed example and was
accompanied by at least three homework exercises. This continues to be true for most of
the added topics and chapters. There are now 214 examples and 649 homework exercises.
In addition, 839 references are cited.

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