B1. Sketch possible column arrangements for separation of a four-component system. Do not include sidestream products. Note that there are a large number of possibilities.
B2. We wish to generate additional arrangements for quaternary mixtures (see Problem 11.B1). Sketch possible arrangements that use one or two columns that have side-streams for one or both of the intermediate component product streams.
B3. Multieffect distillation or column integration can be done with more than two columns. Use the basic ideas in Figures 11-5 and 11-6 to sketch as many ways of thermally connecting three columns as you can.
B4. We wish to separate a feed that is 10 mol% benzene, 55 mol% toluene, 10 mol% xylene, and 25 mol% cumene. ...