Cl-452 Process Design Project: Group 23

CL-452 Process Design Project Week 4 Presentation Date: 16 February 2017

GROUP 23 Raj Nayan Datta Shivam Jindal G.V. N Reddy Shrey Nagori Shanti Priya

-

131030020 130020123 130020110 130020002 130020115

PFD (n-butane to Maleic Acid)

Stoichiometric Equations C4H10 + 7/2O

C4O3H2 + 4H2O

C4O3H2+ H2O

C4O4H4

C4O4H4 + 5H2

0.9 [C4H8O + 3H2O] 0.1 [C4H10O2 + 2H2O]

Riser Reactor Input

kmol/hr

kg/hr

Output

n.butane

53.58

3107.64

Maleic Anhydride

Air

893

25897

kmol/hr

kg/hr

53.58

5250.84

n-butane 0

O2

187.53

6000.96

N2+ other gases

705.47

19896.04

N2+ other gases

705.47

19896.04

214.32

3857.76

Water

Absorber Input

Maleic Anhydride

kmol/hr

kg/hr

Output

kmol/hr

kg/hr

Maleic Acid 53.58

5250.84

Water (vapour)

53.58

6215.28

214.32

3857.76

Water 267.9

4822.2

PFD (Maleic Acid to THF)

Bubble Reactor Input

kmol/hr

kg/hr

Output

Maleic Acid

kmol/hr

kg/hr

Tetrahydrofuran 53.58

6215.28

Water

48.222

3471.984

5.358

482.22

369.702

6654.636

1,4 butanediol 214.32

3857.76

H2

Water 267.9

535.8

Distillation Column 1 Overhead

kmol/hr

kg/hr

Bottoms

Tetrahydrofuran

kmol/hr

kg/hr

Tetrahydrofuran 47.967495

3453.65964

1,4 butanediol

0.254505

18.32436

5.358

482.22

1.958646667

35.25564

1,4 butanediol 0

0

Water

Water 367.7433533

6619.38036

Distillation Column 2 Overhead

kmol/hr

kg/hr

Tetrahydrofuran

Bottoms

kmol/hr

kg/hr

Tetrahydrofuran 47.967495

3453.65964

Water

0

Water 0.09593499

1.72682982

367.6474183

6617.65353

References 1.

Hans-Juergen Gosch, H. Rust, R. Fischer, C. Hechler and R. Pinkos. “Separation of 1,4-butanediol from hydrogenation mixtures”. US 5342488 A. issued on 30 Aug 1994

2.

J. K. Kouba and R. B. Snyder. “Coproduction of butanediol and tetrahydrofuran and their subsequent separation from the reaction product mixture”. US 4656297 A. issued on Apr 7, 1987