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Separation Process Engineering: Includes Mass Transfer Analysis, Third Edition by Phillip C. Wankat

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11.7 Summary—Objectives

In this chapter we looked briefly at the economics of distillation, energy reduction, and multicomponent cascades. At the end of this chapter you should be able to satisfy the following objectives:

1. Estimate the capital and operating costs for a distillation column

2. Predict the effect of the following variables on column capital and operating costs:

a. Feed rate

b. Column pressure

c. External reflux ratio

3. Estimate the effects that external factors have on capital and operating costs; external factors would include:

a. Energy costs

b. The general state of the economy

4. Discuss methods for reducing energy in distillation systems; develop flowsheets with appropriate heat exchange

5. Use heuristics to develop alternative ...

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