Customer Reviews

Equilibrium-Stage Separation Operations in Chemical Engineering

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Henley & Seader cover a spectrum of equilibrium separations, from flash distillation through liquid-liquid separation. Several examples are provided showing graphical and numerical solutions to these problems. Many solutions are available only in this text. It is possible, with a little familarity, to find details not available anywhere else.As an experienced engineer, I found this book frustrating at times. Henley & Seader lay out each area in great detail and generally do an excellent job of explaining complex separations. The difficulty arose in using the examples in the text to solve the problems in the back. With patience, and the help of Treybal's Mass Transfer Operations, 3rd ed., I was able to piece together a solution. By the way, although Treybal is an excellent book, it too leaves out a great deal, and the problems are often impossible. Henley & Seader's problems start out easy and progress to the difficult leaving a student, including this engineer, a chance to catch up. Another problem with the text is notation and terminology. For example, in explaining different numerical analysis methods to solve for VLE of a mixture, the authors failed to identify what they meant by a method using K-factors dependent on composition (non-ideal, vapor or liquid) and K-factors dependent on temperature alone (ideal vapor AND liquid). At least, this was not easy to find in their text. I finally found reference in Smith & Van Ness. As with many text, I suggest using this book with a second or third text to fill in missing gaps or gather a better explanation.How would I rate this book in final analysis? GOOD. Worth the purchase.

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