Follow the steps of the Systematic Approach of Section 14.4—that is, (1) identify the system, (2) determine whether the process is batch or rate, (3) construct a schematic diagram with inputs and outputs, (4) Label known material quantities or rates of flow and so on. A company is evaluating a distiller to produce alcohol from corn to blend with gasoline to produce ethanol. They feed 875 kg/hr into the still. This feed has been analyzed and contains 11.3 percent alcohol, 83.9 percent water, and some inert material. From the top of the still, a vapor is drawn off and passed through a condenser where it is cooled. The finished product is 12.6 percent of the feed. This condensate contains 73.1 percent alcohol, 26.2 percent water, and 0.70 percent inert material. Determine the amount and

Question

composition of the bottoms (waste) from the bottom of the still.

What will be an ideal response?

Answer 1