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Conceptual Design of Synthesis of Aniline by Liquid-Phase Hydrogenation for Nitrobenzene

2003

2003 12

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1.1 3

1.2 3

1.3 4

1.45

2.1 6

2.16

.7 4.18

4.28

4.39

4.4 12

4.513

13 .14

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11

80

MDI80

1136

MDI

2000297240

26.8%42.2%10.3%8.9%2.0%

1.0%7.7%1.2%20002.55Mt/a

20053.63Mta

2.90Mt/a2.739 Mta

96

17

MDI

50Kt/a MDI75Kt/a50kta

12

-63184102120/4

1586370

()

5 10 ()

300

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13 18571950

19621970

85105()

()98

114Kt/a91Kta

()

200-3001-3MPa

99

,

3

260-280

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14 (m/m)

99.6% 0.002%

0.1%

5/

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21

3

C6H5NO2 + 3H2 C6H5NH2 + 2H2O

C6H5NO2 + 4H2 ========== C6H6 + NH3 + 2H2O

C6H5NH2 + H2 =========== C6H6 + NH3

C6H6 + 3H2 ========== 3C + 3CH4

22 a220

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220

(b) 910:1

301

9101

c260280 300

d- 1720%

40120

99 100

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1 H2

C6H5NO2 91mol 220

1720%-260

200Kpa

1.

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4.1

R1H2

C6N02

R-OUT

SEP1

REC-H2

D1

DE-IN

D1A

D1WMIXER

WATER

D2W

RE-W

D2

D2A

T3

WASTE

R-W

T1

AW

FEED

T2

PRODUCT

HEAVY

MIXER

ANILIN

SEP2

REC2-H2B1

4.2

Aspen plus (1)

RStoicRadFracflash2decanter

mixerheater

Azertropic

(2)1 UNIFAC RK

2

3UNIFAC

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R1H2

C6N02

R-OUT

4.3 4.3.1

C6H5NO2+3H2 C6H5NH2+2H2O

H2C6H5NO291

mol) 220

260200kpa-

1720%99

100

4.3.2

SEP-1 SEP-2SEP-1 500kpa 40

SEP-2

SEP-1 SEP-2 D-1

3/4

1

1 D-1

1atm 97.97mol

0.9187 0.0813

DE-IN D1A D1W 129.6523 35.16692 94.48542

0.69048 0.68991 5.71111E-4

68.42977 67.74772 0.68205

2

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D-240

4.3.3 D-1 D-2 T-1

99 8mol

11

2

2

Condenser/Top stage performance

Temperature 99.06

Heat duty 0.72711 KW

Distillate 37.713Kmol/hr

Reflux rate 0.00754 Kmol/hr

Reflux ratio 0.0002

Reboiler/Bottom stage performance

Temperature 179.39

Heat duty 1,058.95 KW

Bottoms rate 69.2995 Kmol/hr

Boilup ratio 0.86810

4.3.4 D-1 D-2T-3

6102 w

11

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4.4

4.4.1 99.8

0.0002

21

99

32

1.833>32

4.4.2

21

1.833

Sensitivity S-2 Results Summary

VARY 1 B1 PARAM NSTAGE

24 25 26 27 28 29 30 31 32

2

2.5

3

3.5

4

4.5

5

S

Sensitivity S-1 Results Summary

VARY 1 B1 FEED FEEDS STAGE

10 15 20 25 30

2

2.5

3

3.5

4

A

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4.5 kmol/hr

H2 C6H5NO2 H2O C6H5NH2

H2 623.3 0 0 0

C6H5NO2() 0 69.26 0 0

623.3 69.26 0 0

REC-H2 417.5560 2.1142E-3 7.4792 0.1376

REC2-H2 0.034 9.095E-7 3.2576E-3 5.9229E-5

WASTE 6.9979E-19 5.3638E-15 129.4785 1.2948E-6

PRODUCT 0 2.0262E-4 0.1793 68.2928

HEAVY 0 0.6903 3.4018E-18 0.1369

417.59 0.6926 136.96 68.5674

1

2

3

1 Optimization Sensitivity

2 Aspen Pinch

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3 Superpro

4

5

6 Aspen Dynamic

12003 26

1

2.

3. 1993

4. IM&P 2003

5.

6. 1999

12

7. APRSYS 111 User Guide

8. APRSYS 111 Physical Property Methods and Models

9.APLUS 111 Unit Operation Models

10.2002 11