SIMULATION AND OPTIMIZATION CONDENSATE TREATMENT PROCESS

Recovery maximum of NH3 and CO2 turn back to Low Pressure Section Recover condensate treatment to Granulation and Utility Reuse heat of PC for Exchanger E06113, E06107 Recovery maximum of NH3 and CO2 turn back to Low Pressure Section Recover condensate treatment to Granulation and Utility Reuse heat of PC for Exchanger E06113, E06107 Recovery maximum of NH3 and CO2 turn back to Low Pressure Section Recover condensate treatment to Granulation and Utility Reuse heat of PC for Exchanger E06113, E06107 Recovery maximum of NH3 and CO2 turn back to Low Pressure Section Recover condensate treatment to Granulation and Utility Reuse heat of PC for Exchanger E06113, E06107

TẬP ĐOÀN DẦU KHÍ VIỆT NAM

TRƯỜNG ĐẠI HỌC DẦU KHÍ VIỆT

NAM

SIMULATION AND OPTIMIZATION CONDENSATE TREATMENT PROCESS

Hướng dẫn:

PQĐ KS: Đinh Hoàng Long

KSCN : Lê Văn Hùng

KSVH : Nguyễn Hữu Thiên

Thực hiện:

Sinh viên: Lê Duy Phú

Lớp : K1 LHD

MAIN CONTENT

Urea Unit and Condensate Treatment Process

1 2 3 4

Process Dynamic Simulation Tuning PID Controller

Optimize Operation

Electric Plant

Electric Plant

Ammonia Unit

Ammonia Unit

Urea – Gran Unit

Urea – Gran Unit

Product Unit

Product Unit

Utility

Unit

Utility

Unit

Gas

Plant

Gas

Plant

Air

Urea Particles

2385 ton/day

Steam

NH3 liquid

CO2

Urea Product

Ong Doc River

Cooling

Water

Waste

Water

Steam Cooling Water

Water Recycle

Urea Unit and Condensate Treatment Process

Urea Unit and Condensate Treatment Process

 Recovery maximum of NH3 and CO2 turn back to Low Pressure Section

Urea Unit and Condensate Treatment Process

30 %

20

AI

P02

E05

MLS

HS

T25

BL

Granulation

Z13

CY

14

LPW/T25/T07

14 20

E07

E13

E16

E23

E18

FV15

FV16 HV02 HV39

LV32

T02

130oC

0.52 Mpa

60 %

LV31

1515

FCS

FCR

45%

40%

20%

20 %

15 m 3 /h

Adjust

Pump Around

80 %

60 %

PV49

Adjust LI30 – 50%

AUTO 0.35 Mpa MAN 20 %

50 %

5 %

PI40

8 bar

Adjust LI32-50%

50 %

MAN Adjust

0.57 Mpa

157oC

3.1 Mpa

230oC

<200 µS/cm

MAN Adjust

Adjust LI31- 50%

AUTO LI31- 50%

AUTO LI32-50%

AUTO LI30 – 50%

MAN

50 m 3 /h Process Dynamic Simulation

50 %

PID CONTROLLER

 Frequency amplitude: A (ω) = K

 Frequency phase: φ (ω) = 0

 Quick reponse

 Steady state error occurs

 Frequency amplitude: A (ω) = -

 Frequency phase: φ (ω) = -

 Slow reponse

 Steady state error disappears

p v

u sp

e

Up Rase Time Overshoot Setting Time SS Error

P Decrease Increase Small Change Decrease

D Small Change Decrease Decrease Small Change

PID CONTROLLER

Tuning PID Controller

Ziegler–

Nichols Method Experiment

Quick Responsibl

e

Slow Responsibl

e

Calculate

Trial And Error

Algorithms

TUNING PID CONTROLLER

Kp2

Ku

Kp1> Kp2 >

Ku

Tu

TUNING PID CONTROLLER

Ziegler–Nichols method for Quick Response

Parameter Kp Ti TD

PID

PID

TUNING PID CONTROLLER

Ziegler–

Nichols

L=12 s

T=294 s

Tr

=523s

Tr

=420s

TUNING PID CONTROLLER

20 m 3 /h

15 m 3 /h

V (m3) 2.3414 7.1567 7.1567 7.1567 7.1567 4.4686

T15 (min) 133.12 103.755 28.627 75.128 46.5 17.874

15m3/ h

OPTIMIZATION

R 06102

20m3/ h

T20 (min) 106.31 99.286 77.816 56.346 34.876 13.406

0.62 5

8.6

0.8 5

0.8 5

0.8 5

0.8 5

0.8 5

0.8 5

0.8 5

0.8 5

0.7

1

V 6

30 %

V 1

27’

t

MLS

FV15

50 %

50 %

MAN

Adjust

HS

E18

FV16

HV02

30 %

MAN Adjust

0 20 40 60 80 100 120

the dependence of Percent conversion on temperature

%

o C

0.54 Mpa

90 OC

0.55 Mpa

153 OC

0.54 Mpa

153 OC

[NH3] ppm

% Conversion

C 06102 R 06102

Top Temperature 130 oC Temperature 230 oC Bot Temperature 157 oC Pressure 3.1 MPa Top Pressure 0.52 MPa

Bot Pressure 0.57 MPa

OPTIMIZATION

Thank’s

For

Your

Time!