NRB: Multi-unit Example

Multi-Unit Process Example

From the following process description draw a flowchart that concisely summarizes each stage of the process (properly labeling all streams and species within those streams)

A mixture of two components, A and B, are fed at 100 kg/hr to a process unit (Unit 1) in equal parts by mass. One stream, which contains 90 mass % A exits this unit at a rate of 40 kg/hr. A second stream leaves Unit 1 and is mixed with a 30 kg/hr stream which is 70 mass % B. This combined stream serves as the inlet for Unit 2. One of the two outlets (flowing at 30 kg/hr) from Unit 2 is analyzed and found to contain 60 mass % A.

When you are finished, let's try to analyze this system!