Structure and CS Breakdown

The fundamental difference between the Petlyuk and Kaibel columns is the removal of an additional sidestream in the Kaibel column, allowing one to theoretically obtain four pure component product streams (D, Su B), 

The immediate consequence of removing an additional sidestream is that an extra CS is created. For the sake of consistency, we have kept the numbering format of CSs the same to that of the Petlyuk column, and simply labeled the additional CS in the Kaibel column as CS7. 

---

Specify the structure and CS breakdown and decide whether the feed should be above or below the feed stream, based upon which impurity (low or high boiling component) is less desirable in the feed. 

---