Chemical Engineering Chapter 13 Stream No Stream Name Temp Pres Kpa

13-61

CHEMCAD 5.6.0 Page 3

Job Name: Maleic Anhydride_JAS_2008 Date: 12/14/2008 Time: 15:53:41

EQUIPMENT SUMMARIES

Towr Rigorous Distillation Summary

Equip. No. 1

Condenser mode 5

Condenser spec. 0.5000

Cond. comp i 1

Reboiler mode 5

Reboiler spec. 1.0000

Reboiler comp i 4

Iterations 200

Calc cond duty MJ/h -86766.0000

Kinetic Reactor Summary

Equip. No. 2 13

Name

Reactor type 2 2

Reaction phase 1 1

Thermal mode 5 1

Pressure In kPa 250.0000 250.0000

Pressure Drop kPa 30.0000 10.0000

13-62

CHEMCAD 5.6.0 Page 4

Job Name: Maleic Anhydride_JAS_2008 Date: 12/14/2008 Time: 15:53:41

EQUIPMENT SUMMARIES

Number of steps 1000.0000

Tolerance 1.0000e-004

Conversion 0.9500

Key 7 0

No. of Reactions 4 4

Reaction Stoichiometrics and Parameters for unit no. 2

Reaction 1

RateConst = 7.7000e+006 Act.E = 2.5142e+004 Hrxn = 0.0000e+000

Comp Stoich. Exp.factor AdsorbFac. AdsorbE AdsorbExp.

6 -1.00e+000 1.0000e+000 0.0000e+000 0.0000e+000 0.0000e+000

Reaction 2

RateConst = 6.3100e+007 Act.E = 2.9850e+004 Hrxn = 0.0000e+000

Comp Stoich. Exp.factor AdsorbFac. AdsorbE AdsorbExp.

6 -1.00e+000 1.0000e+000 0.0000e+000 0.0000e+000 0.0000e+000

Reaction 3

RateConst = 2.3300e+004 Act.E = 2.1429e+004 Hrxn = 0.0000e+000

Comp Stoich. Exp.factor AdsorbFac. AdsorbE AdsorbExp.

1 -1.00e+000 1.0000e+000 0.0000e+000 0.0000e+000 0.0000e+000

Reaction 4

RateConst = 7.2000e+005 Act.E = 2.7149e+004 Hrxn = 0.0000e+000

Comp Stoich. Exp.factor AdsorbFac. AdsorbE AdsorbExp.

6 -1.00e+000 1.0000e+000 0.0000e+000 0.0000e+000 0.0000e+000

13-63

CHEMCAD 5.6.0 Page 5

Job Name: Maleic Anhydride_JAS_2008 Date: 12/14/2008 Time: 15:53:41

EQUIPMENT SUMMARIES

Reaction 1

RateConst = 7.7000e+006 Act.E = 2.5143e+004 Hrxn = 0.0000e+000

Comp Stoich. Exp.factor AdsorbFac. AdsorbE AdsorbExp.

6 -1.00e+000 1.0000e+000 0.0000e+000 0.0000e+000 0.0000e+000

Reaction 2

RateConst = 6.3100e+007 Act.E = 2.9850e+004 Hrxn = 0.0000e+000

Comp Stoich. Exp.factor AdsorbFac. AdsorbE AdsorbExp.

6 -1.00e+000 1.0000e+000 0.0000e+000 0.0000e+000 0.0000e+000

4 3.00e+000 0.0000e+000 0.0000e+000 0.0000e+000 0.0000e+000

Reaction 3

RateConst = 2.3300e+004 Act.E = 2.1429e+004 Hrxn = 0.0000e+000

Comp Stoich. Exp.factor AdsorbFac. AdsorbE AdsorbExp.

1 -1.00e+000 1.0000e+000 0.0000e+000 0.0000e+000 0.0000e+000

Reaction 4

RateConst = 7.2000e+005 Act.E = 2.7149e+004 Hrxn = 0.0000e+000

Comp Stoich. Exp.factor AdsorbFac. AdsorbE AdsorbExp.

6 -1.00e+000 1.0000e+000 0.0000e+000 0.0000e+000 0.0000e+000

13-64

CHEMCAD 5.6.0 Page 6

Job Name: Maleic Anhydride_JAS_2008 Date: 12/14/2008 Time: 15:53:42

EQUIPMENT SUMMARIES

Heat Exchanger Summary

Equip. No. 3 6

Name

1st Stream dp kPa 10.0000 5.0000

Mixer Summary

Equip. No. 4 10 12 14

Name

Output Pressure kPa 250.0000

Fired Heater Summary

Compressor Summary

Equip. No. 7

Name

Pressure out kPa 250.0000

13-65

CHEMCAD 5.6.0 Page 7

Job Name: Maleic Anhydride_JAS_2008 Date: 12/14/2008 Time: 15:53:42

EQUIPMENT SUMMARIES

Component Separator Summary

Equip. No. 8

Name

Shortcut Distillaton Summary

Equip. No. 9

Name

Mode 2

Light key component 9.0000

Light key split 0.9990

Heavy key component 2.0000

Heavy key split 8.0000e-005

Reactor Summary

Equip. No. 11

Name

Thermal mode 1

Temperature C 194.1640

EQUIPMENT SUMMARIES

Divider Summary

Equip. No. 15

Name

13-66

CHEMCAD 5.6.0 Page 9

Job Name: Maleic Anhydride_JAS_2008 Date: 12/14/2008 Time: 15:53:42

FLOW SUMMARIES

Stream No. 1 2 3 4

Stream Name

Temp C 30.0000 460.0000 586.1242 30.0000

Pres kPa 260.0000 235.0000 235.0000 101.0000

Oxygen 0.0000 585.0000 370.4695 585.0000

Benzene 42.3000 42.3000 4.2890 0.0000

Quinone 0.0000 0.0000 0.7110 0.0000

Carbon Dioxide 0.0000 0.0000 135.4191 0.0000

Maleic Acid 0.0000 0.0000 0.0000 0.0000

Water 0.0000 0.0000 92.0598 92.0598

Oxygen 585.0000 585.0000 368.7527 368.7527

Benzene 0.0000 42.3000 2.3447 2.3447

Quinone 0.0000 0.0000 0.7272 0.7272

13-67

CHEMCAD 5.6.0 Page 10

Job Name: Maleic Anhydride_JAS_2008 Date: 12/14/2008 Time: 15:53:42

FLOW SUMMARIES

Stream No. 9 10 11 12

Stream Name

Temp C 329.1962 320.0000 194.1640 83.6666

Nitrogen 0.0000 0.0000 0.0000 2205.0000

Water 0.0000 0.0000 0.0000 91.0598

Oxygen 0.0000 0.0000 0.0000 368.7527

Benzene 0.0000 0.0000 0.0000 2.3447

Quinone 0.0000 0.0000 0.3650 0.3622

Maleic Anhydride 24.8517 0.0000 0.0000 0.0000

DibutylPhthalate 0.0401 501.5167 0.0000 0.0000

Nitrogen 0.0000 0.0000 0.0000 0.0000

Water 0.0000 0.0000 0.0000 0.0000

Oxygen 0.0000 0.0000 0.0000 0.0000

13-68

CHEMCAD 5.6.0 Page 11

Job Name: Maleic Anhydride_JAS_2008 Date: 12/14/2008 Time: 15:53:42

FLOW SUMMARIES

Water 0.0000 0.0000 90.5157 0.0000

Oxygen 526.5000 58.5000 311.9694 585.0000

Benzene 38.0700 4.2300 0.0590 42.3000

Quinone 0.0000 0.0000 0.7110 0.0000

Carbon Dioxide 0.0000 0.0000 135.4191 0.0000

Maleic Acid 0.0000 0.0000 0.0000 0.0000

Sodium Nitrite 0.0000 0.0000 0.0000 0.0000

Sodium Nitrate 0.0000 0.0000 0.0000 0.0000

Stream No. 102 103 104 105

Stream Name

Temp C 194.0467 83.6769 194.0467 194.0467

Pres kPa 82.0000 75.0000 82.0000 82.0000

13-69

CHEMCAD 5.6.0 Page 12

Job Name: Maleic Anhydride_JAS_2008 Date: 12/14/2008 Time: 15:53:42

FLOW SUMMARIES

Stream No. 110

Stream Name

Temp C 112.6301

Pres kPa 250.0000

13-70

CHEMCAD 5.6.0 Page 8

Job Name: Ethylbenzene Date: 12/14/2008 Time: 13:38:22

EQUIPMENT SUMMARIES

Valve Summary

Equip. No. 13

Name

Pressure out kPa 110.0000

Pump Summary

Equip. No. 14 26 27

Name

Output pressure kPa 2000.0000 2000.0000 2000.0000

Component Separator Summary

Equip. No. 19

Name

Component No. 3 1.0000

Towr Rigorous Distillation Summary

Equip. No. 29 30

Name

No. of stages 21 36

1st feed stage 9 26

13-71

CHEMCAD 5.6.0 Page 9

Job Name: Ethylbenzene Date: 12/14/2008 Time: 13:38:22

EQUIPMENT SUMMARIES

(kmol/h)

Est. T top C 82.0000 152.0000

13-72

CHEMCAD 5.6.0 Page 10

Job Name: Ethylbenzene Date: 12/14/2008 Time: 13:38:22

FLOW SUMMARIES

Stream No. 1 2 3 4

Stream Name

Temp C 25.0000 25.0000 84.1704 25.0000

Pres kPa 110.0000 2000.0000 2000.0000 2000.0000

Enth MJ/h 4789.5 4117.9 2292.4 1235.4

Stream No. 5 6 7 8

Stream Name

Temp C 25.0000 383.2898 443.4468 380.0000

Pres kPa 2000.0000 1985.0000 1935.0000 1935.0000

Enth MJ/h 1441.3 30814. 30814. 30317.

Vapor mole fraction 1.0000 1.0000 1.0000 1.0000

Stream No. 9 10 11 12

Stream Name

Temp C 453.8678 25.0000 380.0000 449.6506

Pres kPa 1935.0000 2000.0000 1935.0000 1935.0000

Enth MJ/h 30317. 1441.3 29144. 29144.

13-73

CHEMCAD 5.6.0 Page 11

Job Name: Ethylbenzene Date: 12/14/2008 Time: 13:38:22

FLOW SUMMARIES

Stream No. 13 14 15 16

Stream Name

Temp C 497.8943 458.4666 73.6193 73.6193

Pres kPa 1990.0000 1935.0000 110.0000 110.0000

Stream No. 17 18 19 21

Stream Name

Temp C 82.9686 84.1704 145.4251 185.5938

Pres kPa 110.0000 2000.0000 120.0000 2000.0000

Enth MJ/h 9714.2 9745.2 742.05 -266.83

Vapor mole fraction 0.00000 0.00000 0.00000 0.00000

Stream No. 22 41 42 43

Stream Name

Temp C 139.0379 145.4355 139.0300 170.3402

Pres kPa 110.0000 120.0000 110.0000 120.0000

Enth MJ/h 1015.2 740.82 974.96 -254.89

13-74

CHEMCAD 5.6.0 Page 12

Job Name: Ethylbenzene Date: 12/14/2008 Time: 13:38:22

FLOW SUMMARIES

Stream No. 103 107 109 111

Stream Name

Temp C 25.0000 400.0000 423.2435 434.4776

Pres kPa 2000.0000 1985.0000 1935.0000 1935.0000

Enth MJ/h 2882.5 29578. 32255. 31758.

Stream No. 117 118 119 123

Stream Name

Temp C 84.1704 280.0000 73.6193 184.5116

Pres kPa 2000.0000 1915.0000 110.0000 120.0000

Enth MJ/h 7452.7 26129. 8833.4 -270.75

Stream No. 126 127 131 132

Stream Name

Temp C 73.6193 60.5602 59.3422 170.0000

Pres kPa 110.0000 2000.0000 110.0000 1915.0000

Enth MJ/h 244.18 12283. 12242. 13773.

Vapor mole fraction 1.0000 0.00000 0.00000 0.040547

CHEMCAD 5.6.0 Page 13

Job Name: Ethylbenzene Date: 12/14/2008 Time: 13:38:22

FLOW SUMMARIES

Stream No. 134 135 137 140

Stream Name

Temp C 119.8999 80.0000 73.6193 500.0000

Pres kPa 2000.0000 1915.0000 110.0000 1990.0000

Enth MJ/h 2025.6 8833.4 14.045 7082.7

Stream No. 145

Stream Name

Temp C 73.6193

Pres kPa 110.0000

Enth MJ/h 8589.2

Vapor mole fraction 0.00000

13-76

13.21 Simulation of the Ethylene Oxide process, Appendix B, Figure B.6.1 and Table B.6.1.

The simulation results are shown in the output following this page. The PSRK model

was used for the phase equilibrium (except for towers T-701 and T-702 in which the

UNIFAC model was used), and the SRK model was used for enthalpies. The required

minimum input information for this simulation is given below:

1. Flowsheet topology

13.22 Simulation of the Formalin process, Appendix B, Figure B.7.1 and Table B.7.1. The

simulation results are shown in the output following this page. The Elliot-Suresh-

Donahue Equation of State (ESDK) model was used for the phase equilibrium, and the

latent heat model (zero heat of mixing) was used for enthalpies. The required

minimum input information for this simulation is given below:

1. Flowsheet topology

4. Calculational tolerances

13.23 The batch aspects vary by simulator. For Chemcad, these are Batch Reactor, Batch

Column, Tank UnitOp, Dynamic Vessel UnitOp, and Scheduling.

13-77

CHEMCAD 5.6.0 Page 1

Job Name: ethylene oxide with recycle Date: 12/14/2008 Time: 14:37:10

FLOWSHEET SUMMARY

Equipment Label Stream Numbers

1 COMP 1 -3

2 HTXR 3 -4

3 COMP 4 -5

4 HTXR 5 -6

14 VALV 18 -19

15 KREA 19 -20

16 HTXR 20 -21

17 COMP 21 -22

18 SCDS 23 22 –24 -25

Stream Connections

Stream Equipment Stream Equipment Stream Equipment

From To From To From To

1 1 15 12 29 22 23

2 7 16 12 13 30 23 100

3 1 2 17 12 22 31 24 25

4 2 3 18 13 14 32 25

13-78

CHEMCAD 5.6.0 Page 2

Job Name: ethylene oxide with recycle Date: 12/14/2008 Time: 14:37:10

Calculation mode : Sequential

Flash algorithm : Normal

Equipment Calculation Sequence

Recycle Convergence Tolerance

Flow rate 1.000E-003

Recycle calculation has converged.

Overall Mass Balance kmol/h kg/h

Input Output Input Output

Ethylene 712.911 336.269 20000.000 9433.694

COMPONENTS

ID # Name Formula

1 22 Ethylene C2H4

THERMODYNAMICS

K-value model : PSRK

IPP flag on

13-79

CHEMCAD 5.6.0 Page 3

Job Name: ethylene oxide with recycle Date: 12/14/2008 Time: 14:37:10

Equip # 12 K-value : UNIF

Equip # 18 K-value : UNIF

13-80

CHEMCAD 5.6.0 Page 4

Job Name: ethylene oxide with recycle Date: 12/14/2008 Time: 14:37:10

EQUIPMENT SUMMARIES

Compressor Summary

Equip. No. 1 3 5 11

Name

Pressure out bar 3.0000 9.0000 27.0000 30.0000

Type of Compressor 1 1 1 1

Equip. No. 17

Name

Pressure out bar 30.0000

Type of Compressor 1

Heat Exchanger Summary

Equip. No. 2 4 8 10

Name

1st Stream dp bar 0.3000 0.3000 0.3000 0.3000

1st Stream T Out C 45.0000 45.0000 240.0000 45.0000