![1. The following process flow diagram has been prepared in which aqueous ethanol (C2HsOH) streams, 1 and 4, are treated to produce two concentrated ethanol streams, labelled as stream 2 and stream 6, for medicinal applications. Additional process information for the two units are given as follows, (i) 90% of the ethanol in feed stream 1 is recovered in stream 2, and (ii) 85% of the ethanol in stream 5 is recovered in stream 6. x, = 0.9 kg EtOH/ kg x0.75kgEtOH/kg F-30 kg/h x, 0.3 kg EtOH/kg Mixer Valve x,=0.5 kg EtOH/kg Xs (a) For the overall system, Unit 1, Unit 2 and the mixing valve, conduct a Degrees of Freedom analysis. In each case list the known and unknown variables, and the equations that can be used to assist in this analysis. Show that there is not enough information available to allow you to proceed to balance the PFD (b) Assuming a feed, F100 kg/h show that you may now proceed to balance the PFD. Solve for all unknown flow rates and compositions. (c) Determine the overall efficiency of the process in terms of the ethanol recovered in streams 2 and 6 relative to the ethanol fed to the overall process (d) Determine the molar flowrate and composition in mole fractions for stream 2 coming from Unit 1 [30%] [5096] [10%] [10%]](http://img.homeworklib.com/questions/61b8e830-f4a2-11eb-aef4-7df2e3697cfc.png?x-oss-process=image/resize,w_560)
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1. The following process flow diagram has been prepared in which aqueous ethanol (C2HsOH) streams, 1...
Problem 1 An absorber-stripper process is used to remove carbon dioxide (CO2) and hydrogen sulfide (H2S)...
Problem 1 An absorber-stripper process is used to remove carbon dioxide (CO2) and hydrogen sulfide (H2S) from a feed (stream 1) consisting of 25% CO2 and 15% H2S in nitrogen. In the absorber, a solvent selectively absorbs hydrogen sulfide and carbon dioxide. The absorber overhead (stream 2) contains only 2% CO, and the balance Nitrogen with no Hys. Ny is insoluble in the solvent. The rich solvent stream leaving the absorber (stream 3) is flashed in a flash separator: the...
A mixture containing 240 kg ethanol and 301.6 Kg acetone is flashed at 1 atm. The...
A mixture containing 240 kg ethanol and 301.6 Kg acetone is flashed at 1 atm. The feed rate is 541.6 kg/hr. a. Calculate the fractional vaporization required to obtain 66 mole % of ethanol in the liquid product stream leaving the bottom of the flash tank. b. Find the operating temperature which will achieve this separation. C. What are the compositions (mole %) in the product streams? d. Calculate the L/min of acetone in the vapor stream leaving the top...
An equimolar liquid mixture of benzene and toluene is separated into two product streams by distillation....
An equimolar liquid mixture of benzene and toluene is separated into two product streams by distillation. A process flowchart and a somewhat oversimplified description of what happens in the process follow: Vapor-97% mole benzene A Reflux Overhead product Filmoi) 24 CONDENSER", mot Feed 100 mol 0.500 mol Bimal La DISTILLATION 0.500 mol/mol Bollup mol B[/mol) 1 Bottoms product REBOILER mol B/D/mol Inside the column a liquid stream flows downward and a vapor stream rises. At each point in the column...
Ethylene oxide is produced by the catalytic oxidation of ethylene: C2H4 (g) + 1/2 O2 (g)...
Ethylene oxide is produced by the catalytic oxidation of ethylene: C2H4 (g) + 1/2 O2 (g) --> C2H4O (g) An undesired competing reaction is the combustion of ethylene to CO2. The feed to a reactor contains 2 mol C2H4/mol O2. The conversion and yield in the reactor are respectively 25% and 0.70 mol C2H4O produced/mol C2H4 consumed. A multiple-unit process separates the reactor outlet stream components: C2H4 and O2 are recycled to the reactor, C2H4O is sold, and CO2 and...
4.42. An equimolar liquid mixture of benzene and toluene is separated into two product streams by...
4.42. An equimolar liquid mixture of benzene and toluene is separated into two product streams by distillation. A process flowchart and a somewhat oversimplified description of what happens in the process follow: Vapor-97% mole benzene Overhead product Reflux n(mol) n1(mol) CONDENSER Feed 100 mol DISTILLATION COLUMN 0.500 mol B/mol 0.500 mol T/mol Boilup yBmol B(v)/mol] Bottoms product REBOILER *B[mol B(1)/mol] Inside the column a liquid stream flows downward and a vapor stream rises. At each point in the column some...
3(65) A stream enters distillation tower #1 containing methanol (M), ethanol (E), and water (W), with...
3(65) A stream enters distillation tower #1 containing methanol (M), ethanol (E), and water (W), with composition as shown on next page. A vapor stream leaves tower #1, with total flow rate of 100 mols, containing 90 mol% M and 10 mol% E. No water leaves in this vapor stream. The liquid stream leaving tower #1 contains only ethanol and water (no methanol), and is fed to tower #2, 90% of the water in the feed to tower #2 leaves...
Q.1 Iso-octane (a gasoline blend) can be produced by the reaction: C4H8 (Butene) + i-C4H10 (isobutane)...
Q.1 Iso-octane (a gasoline blend) can be produced by the reaction: C4H8 (Butene) + i-C4H10 (isobutane) > C&H18 (iso-octane) The reaction takes place in the liquid phase at 45 F and 90 psia. The desired production of isooctane is 918 mol/h. One feed stream containing 80 mol% butene, 12% n-butane and 8% propane is mixed-in equi-molar ratio- with another stream containing 73 mol% isobutane, 15% n- butane and 12% propane. The mixed feed streams enter the reactor at 45° F...
how to do this problem An Extraction-Distillation Process A mixture containing 50,0 wt% acetone (A) and...
how to do this problem
An Extraction-Distillation Process A mixture containing 50,0 wt% acetone (A) and 50.0 wt% water (W) is to be separated into two streams-one rich in acetone and the other in water. The separation process consists of extraction of the acetone from the water into methyl isobutyl ketone (MIBK or M), which has a much higher affinity for acetone than it does for water. The process is shown schematically below. M (solvent) M (solvent) Feed Raffinate 1...
Problem 1 An absorber-stripper process is used to remove carbon dioxide (CO2) and hydrogen sulfide (H2S) from a feed (stream 1) consisting of 25% CO2 and 15% H2S in nitrogen. In the absorber, a solvent selectively absorbs hydrogen sulfide and carbon dioxide. The absorber overhead (stream 2) contains only 2% CO, and the balance Nitrogen with no Hys. Ny is insoluble in the solvent. The rich solvent stream leaving the absorber (stream 3) is flashed in a flash separator: the...
A mixture containing 240 kg ethanol and 301.6 Kg acetone is flashed at 1 atm. The feed rate is 541.6 kg/hr. a. Calculate the fractional vaporization required to obtain 66 mole % of ethanol in the liquid product stream leaving the bottom of the flash tank. b. Find the operating temperature which will achieve this separation. C. What are the compositions (mole %) in the product streams? d. Calculate the L/min of acetone in the vapor stream leaving the top...
An equimolar liquid mixture of benzene and toluene is separated into two product streams by distillation. A process flowchart and a somewhat oversimplified description of what happens in the process follow: Vapor-97% mole benzene A Reflux Overhead product Filmoi) 24 CONDENSER", mot Feed 100 mol 0.500 mol Bimal La DISTILLATION 0.500 mol/mol Bollup mol B[/mol) 1 Bottoms product REBOILER mol B/D/mol Inside the column a liquid stream flows downward and a vapor stream rises. At each point in the column...
4.42. An equimolar liquid mixture of benzene and toluene is separated into two product streams by distillation. A process flowchart and a somewhat oversimplified description of what happens in the process follow: Vapor-97% mole benzene Overhead product Reflux n(mol) n1(mol) CONDENSER Feed 100 mol DISTILLATION COLUMN 0.500 mol B/mol 0.500 mol T/mol Boilup yBmol B(v)/mol] Bottoms product REBOILER *B[mol B(1)/mol] Inside the column a liquid stream flows downward and a vapor stream rises. At each point in the column some...
3(65) A stream enters distillation tower #1 containing methanol (M), ethanol (E), and water (W), with composition as shown on next page. A vapor stream leaves tower #1, with total flow rate of 100 mols, containing 90 mol% M and 10 mol% E. No water leaves in this vapor stream. The liquid stream leaving tower #1 contains only ethanol and water (no methanol), and is fed to tower #2, 90% of the water in the feed to tower #2 leaves...
Q.1 Iso-octane (a gasoline blend) can be produced by the reaction: C4H8 (Butene) + i-C4H10 (isobutane) > C&H18 (iso-octane) The reaction takes place in the liquid phase at 45 F and 90 psia. The desired production of isooctane is 918 mol/h. One feed stream containing 80 mol% butene, 12% n-butane and 8% propane is mixed-in equi-molar ratio- with another stream containing 73 mol% isobutane, 15% n- butane and 12% propane. The mixed feed streams enter the reactor at 45° F...
how to do this problem
An Extraction-Distillation Process A mixture containing 50,0 wt% acetone (A) and 50.0 wt% water (W) is to be separated into two streams-one rich in acetone and the other in water. The separation process consists of extraction of the acetone from the water into methyl isobutyl ketone (MIBK or M), which has a much higher affinity for acetone than it does for water. The process is shown schematically below. M (solvent) M (solvent) Feed Raffinate 1...
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