Environmental Engineering Reference
In-Depth Information
2
Separations as unit operations
The goal is to pick the best solution.
- H. S. FOGLER
The information in the previous chapter provides an important introduction to the
environmental applications of chemical separations technology. This chapter will be devoted
to an introductory description of the concept and analysis of a unit operation as applied
to separation processes. Subsequent chapters will present some necessary fundamentals
of separations analysis and discuss specific separation methods.
2.1
Objectives
1 Define the concept of a unit operation and state the design significance.
2 Describe the two basic mechanisms for separations.
3 Discuss factors important in selecting an exploitable property difference.
4 Give examples of equilibrium and rate properties that are used as the basis for
separation.
5 Give examples of mass- and energy-separating agents.
6 List the two ways that a separating agent is used to obtain a different compound
distribution between two phases.
7 List the four ways that separating agents generate selectivity.
8 Discuss the applications of reversible chemical complexation to separations.
9 Define cocurrent and countercurrent operation.
10 List factors important to the selection of a particular separation process for a given
application.
11 List several reasons for implementing a unified view of separations technologies.
Search WWH ::




Custom Search