Repeat the computer simulation proof of feasibility for Example 11-3 but use the flowsheet in Figure 11-7B. The input for the simulator should be based on the solution to Problem 11.D6. Try different feed stages in the first column for recycle stream and fresh feed.

Example 11-3

Figure 11-7B

Problem 11.D6.

Repeat the residue curve analysis for Example 11-3 but using the flowsheet in Figure 11-7b. Arbitrarily use a recycle flow rate of 100.0 \(\mathrm{kmol} / \mathrm{h}\).

Example 11-3

Figure 11-7b

We have 100.0 kmol/h of a saturated liquid feed that is 50.0 mol% methanol, 10.0 mol% methyl butyrate, and 40.0 mol% toluene. We want to separate this feed into three pure products (99.7+% purities). Develop a feasible distillation cascade for this system. Prove that your system is feasible.