Nonrecycle separator

We consider now the description of binary separation in a single-entry separator with only two product streams. Assume steady state operation without any chemical reaction. As in Chapter 1 with region 1 and species 1, we assume here arbitrarily that species 1 is lighter than species 2 and thaty = 1 refers to that product stream which is richer in the lighter species 1. If we had perfect separation, product stream y = 1 will have only species 1 and product stream y = 2 will have only species 2. To start with, consider only a nonrecycle separator. Such a separator is sometimes called a splitter (Figure 2.2.1a). 

Figure 2.2.1. (a) Nonrecycle single-entry separator, (b) Single-entry separator with part oflightfraction recycled to feed stream, (c) Singleentry separator with part of heavy fraction recycled to the feed. 

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