Incorrect Question 5 0/1 pts C3H6+CO+H2-C4HgO In an existing process, 180 kgmol/
ID: 705925 • Letter: I
Question
Incorrect Question 5 0/1 pts C3H6+CO+H2-C4HgO In an existing process, 180 kgmol/h of C,H, (P) is mixed with 420 kgmol/h of a mixture containing 50% CO (C) and 50% H, (H) and with a recycle stream containing propylene and then fed to a reactor, 30% of the propylene fed to the reactor is consumed. The reactor effluent is sent to a separator. The desired product butanal (B) is removed in one stream, unreacted CO and H, are removed in a second stream, and unreacted P is recovered and recycled. PMixerReaclor SeparatorC, H P, C, How many material balance equations are there for the process? 14.0000 Incorrect, the first equation is the general material balance equation. There are also material balance equations for each process unit.Explanation / Answer
There are three devices which are mixer, reactor and separator. There are four components, three reactants C3H6,CO and H2 and one product C4H8O.
mixer -1 : There are 3 components enteing mixer-1 and three components leaving.
So there will be four balance equations , one overall balance and three component balances
2. Reactor : there are 3 components entering and 4 components leaving. The fourth component is formed as a result of reaction between C3H6,CO and H2. So there will be one overall balance, 3 reactant balances and one product balance. So total of 5 balances
3. Separator : there are four components entering the separator and all the four component balances are leaving te separator. This gives rise to 5 balances which include one overall balance across separator and four balances each for the component entering.
4. Overall balance of C3H6, CO and H2 gives 3 more equations. one more balance of product formed. So total of 4 equations.
This gives rise to 3+5+5+4=17 balances/