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

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4.12 Simulation Problems

In a simulation problem the column has already been built, and we want to know how much separation can be obtained. As noted in Tables 3-1 and 3-3, the real number of stages, the real feed location, the column diameter, and the types and sizes of reboiler and condenser are known. The engineer does the detailed stage-by-stage calculation and the detailed diameter calculation, and finally he or she checks that the operation is feasible.

To be specific, consider the situation where the known variables are F, z, q, xD, Treflux (saturated liquid), p, Qcol = 0, Nactual, Nfeed actual, diameter, L0/D, the overall efficiency Eo, and CMO. This column is illustrated in Figure 4-28A. The engineer wishes to determine the bottoms ...

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