Within a process plant, a stream consisting of a mixture of components A and B (stream 1) is mixed with a stream of pure component B (Stream 2) in a process vessel called a mixer. Stream 1 is 50 mass%...

Extracted text: Within a process plant, a stream consisting of a mixture of components A and B (stream 1) is mixed with a stream of pure component B (Stream 2) in a process vessel called a mixer. Stream 1 is 50 mass% B. The outlet stream of the mixer (stream 3) is 40 mass% A. Stream 3 is fed into a separator which brings the mixture to equilibrium at 70°C and 1atm. Within the separator, the mixture forms two separate phases. The less dense phase exits the separator in stream 4 and the more dense phase exits the separator in stream 5. The processes operate at steady state, and no reactions happen in either process vessel. A process diagram is shown below, with known compositions and flow rates labeled. A temperature- composition diagram for mixtures of A and B at 1 atm is available below. a. What is the mass fraction of B in stream 4? b. What is the total mass flow rate of the stream 4? c. What is the mass flow rate of B in stream 4? d. Write a mass balance equation for component B in the mixer e. What is the total mass of B entering the mixture every hour in Stream 2


Extracted text: Stream 4 Stream 1 8kg/h 50 mass% B Stream 3 50 mass% A SEPARATOR WA3 = 0.4 70°C WB3 = 0.6 1atm MIXER Stream 5 Stream 2 Pure B flowchart 100 V MA=10kg/kmol MB=30kg/kmol 80 T(°C) L+V LB+V 60 LA LB La+LB 40 O 10 20 30 40 50 60 70 80 90 100 Mass Percent B