CHEMCAD 6.2.0 Page 1
Simulation: Midterm1 Date: 10/17/2012 Time: 09:21:21
FLOWSHEET SUMMARY
Equipment Label Stream Numbers
1 MIXE 1 2 -3
2 EREA 3 -4
3 SHOR 4 -5 -6
5 FLAS 5 -7 -8
Stream Connections
Stream Equipment Stream Equipment Stream Equipment
From To From To From To
1 1 4 2 3 7 5
2 1 5 3 5 8 5
3 1 2 6 3
CHEMCAD 6.2.0 Page 2
Simulation: Midterm1 Date: 10/17/2012 Time: 09:21:21
Calculation mode : Sequential
Flash algorithm : Normal
Equipment Calculation Sequence
1 2 3 5
No recycle loops in the flowsheet.
CHEMCAD 6.2.0 Page 3
Simulation: Midterm1 Date: 10/17/2012 Time: 09:21:21
Overall Mass Balance kmol/h kg/h
Input Output Input Output
Ethylene 10000.000 1500.000 280540.013 42081.000
Water 11000.000 2500.000 198165.000 45037.467
Ethanol 0.000 8500.000 0.000 391586.516
Total 21000.001 12500.000 478705.001 478705.001
CHEMCAD 6.2.0 Page 4
Simulation: Midterm1 Date: 10/17/2012 Time: 09:21:21
Overall Energy Balance MJ/h
Input Output
Feed Streams -2.62292e+006
Product Streams -2.9907e+006
Total Heating 1.93191e+006
Total Cooling -2.29969e+006
Power Added 0
Power Generated 0
Total -2.9907e+006 -2.9907e+006
CHEMCAD 6.2.0 Page 5
Simulation: Midterm1 Date: 10/17/2012 Time: 09:21:21
COMPONENTS
ID # Name Formula
1 22 Ethylene C2H4
2 62 Water H2O
3 134 Ethanol C2H6O
THERMODYNAMICS
K-value model : UNIFAC
No correction for vapor fugacity
Enthalpy model : Latent Heat
Liquid density : Library
Std vapor rate reference temperature is 0 C.
Atmospheric pressure is 1.0132 bar.
UNIF Group Interaction Parameters:
Formula: Xij = Aij + Bij * T + Cij * T * T ( T in deg K)
Grpi Grpj Aij Aji Bij Bji Cij Cji
H2O CH2 300.00 1318.00 0.0000 0.0000 0.00000 0.00000
H2O OH -229.10 353.50 0.0000 0.0000 0.00000 0.00000
CH2 OH 986.50 156.40 0.0000 0.0000 0.00000 0.00000
* Component ID 22 does not have UNIFAC subgroups.
CHEMCAD 6.2.0 Page 6
Simulation: Midterm1 Date: 10/17/2012 Time: 09:21:21
EQUIPMENT SUMMARIES
Mixer Summary
Equip. No. 1
Name
Equilibrium Reactor Summary
Equip. No. 2
Name
Thermal mode 2
Temperature C 100.0000
Heat duty MJ/h 146182.6250
Reaction phase 2
No of Reactions 1
Calc IG Ht of Rxn -386010.5625
(MJ/h)
Calc Liq H of Rxn -374442.0000
(MJ/h)
Reaction Stoichiometrics and Parameters for unit no. 2
Reaction no. 1
Base component 1
Frac.conversion 0.8500
Comp 1
Stoic. coeff. -1.0000
Comp 2
Stoic. coeff. -1.0000
Comp 3
Stoic. coeff. 1.0000
Shortcut Distillation Summary
Equip. No. 3
Name
Mode 3
Light key component 3.0000
Light key split 0.9990
Heavy key component 2.0000
Heavy key split 0.0010
Condenser type 1
Reflux ratio 5.0000
CHEMCAD 6.2.0 Page 7
Simulation: Midterm1 Date: 10/17/2012 Time: 09:21:21
EQUIPMENT SUMMARIES
Number of stages 13.5139
Min. No. of stages 11.5695
Feed stage 6.6458
Condenser duty MJ/h -1.8892e+006
Reboiler duty MJ/h 1.7857e+006
Colm pressure bar 2.0000
Reflux ratio, minimum 0.7305
Calc. Reflux ratio 5.0000
Colm pressure drop 0.2000
(bar)
Flash Summary
Equip. No. 5
Name
Flash Mode 2
Param 1 10.0000
Param 2 4.0000
Heat duty MJ/h -410508.0938
K values:
Ethylene 2179.372
Water 7.990E-003
Ethanol 7.882E-003
CHEMCAD 6.2.0 Page 8
Simulation: Midterm1 Date: 10/17/2012 Time: 09:21:21
STREAM PROPERTIES
Stream No. 1 2 3 4
Name
- - Overall - -
Molar flow kmol/h 10000.0002 11000.0003 21000.0014 12500.0000
Mass flow kg/h 280540.0203 198165.0000 478705.0580 478705.0013
Temp C 20.0000 25.0000 19.3187 100.0000
Pres bar 2.0000 2.0000 2.0000 2.0000
Vapor mole fraction 1.000 0.0000 0.4815 1.000
Enth MJ/h 5.1973E+005 -3.1426E+006 -2.6229E+006 -2.4767E+006
Tc C 9.2600 374.2000 137.3994 227.4271
Pc bar 50.3180 221.1823 11.2329 73.6838
Std. sp gr. wtr = 1 0.350 1.000 0.479 0.729
Std. sp gr. air = 1 0.969 0.622 0.787 1.322
Degree API 272.7857 10.0000 164.0028 62.7093
Average mol wt 28.0540 18.0150 22.7955 38.2964
Actual dens kg/m3 2.3307 996.7087 3.9368 2.5368
Actual vol m3/h 120368.0480 198.8194 121596.1072 188704.4001
Std liq m3/h 801.5440 198.1653 999.7093 657.0253
Std vap 0 C m3/h 224136.4774 246550.1393 470686.6167 280170.5614
- - Vapor only - -
Molar flow kmol/h 10000.0002 10112.0000 12500.0000
Mass flow kg/h 280540.0203 282538.3214 478705.0013
Average mol wt 28.0540 27.9409 38.2964
Actual dens kg/m3 2.3307 2.3273 2.5368
Actual vol m3/h 120368.0480 121399.3476 188704.4001
Std liq m3/h 801.5440 803.4424 657.0253
Std vap 0 C m3/h 224136.4774 226646.6526 280170.5614
Cp kJ/kg-K 1.5145 1.5147 1.7112
Z factor 0.9878 0.9876 0.9733
Visc n-s/m2 1.004e-005 1.001e-005 1.144e-005
Th cond W/m-K 0.0203 0.0202 0.0239
- - Liquid only - -
Molar flow kmol/h 11000.0003 10888.0082
Mass flow kg/h 198165.0000 196166.7224
Average mol wt 18.0150 18.0168
Actual dens kg/m3 996.7087 996.9793
Actual vol m3/h 198.8194 196.7611
Std liq m3/h 198.1653 196.2670
Std vap 0 C m3/h 246550.1393 244039.9641
Cp kJ/kg-K 4.1851 4.1927
Z factor 0.0019 0.0019
Visc n-s/m2 0.0009229 0.001049
Th cond W/m-K 0.6062 0.5968
Surf. tens. N/m 0.0721 0.0727
CHEMCAD 6.2.0 Page 9
Simulation: Midterm1 Date: 10/17/2012 Time: 09:21:21
STREAM PROPERTIES
Stream No. 5 6 7 8
Name
- - Overall - -
Molar flow kmol/h 9994.0007 2506.0000 1508.0174 8485.9824
Mass flow kg/h 433321.0151 45384.0000 42519.8551 390801.1246
Temp C 92.0642 121.9483 10.0000 10.0000
Pres bar 2.0000 2.2000 4.0000 4.0000