SIMULATION AND OPTIMIZATION CONDENSATE TREATMENT PROCESS

PVU

TẬP ĐOÀN DẦU KHÍ VIỆT NAM
TRƯỜNG ĐẠI HỌC DẦU KHÍ VIỆT
NAM

SIMULATION AND OPTIMIZATION
CONDENSATE TREATMENT PROCESS

Hướng dẫn:

Thực hiện:

PQĐ. KS: Đinh Hoàng Long

Sinh viên: Lê Duy
Phú

KSCN

: Lê Văn Hùng

KSVH

: Nguyễn Hữu Thiên

Lớp

: K1 LHD

MSSV

:


MAIN CONTENT

1 Urea Unit and Condensate Treatment Process
2
3
4

Graduate Project

Process Dynamic Simulation
Tuning PID Controller
Optimize Operation

Simulation and Optimization Condensate Treatment Process

2


Urea Unit and Condensate Treatment
Process
Ong Doc River
Waste
Water

Cooling
Water

Utility
Unit

Electric
Electric
Plant
Plant

Cooling Water

Steam
CO2

Air
Air

Ammonia
Unit

NH3 liquid
Steam

Urea –
Gran
Unit

Urea Particles
2385 ton/day

Water Recycle

Gas
Gas
Plant
Plant

Product
Unit
Urea Product

Graduate Project

Simulation and Optimization Condensate Treatment Process

3


Urea Unit and Condensate Treatment
Process

Graduate Project

Simulation and Optimization Condensate Treatment Process

4


Urea Unit and 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
Graduate Project

Simulation and Optimization Condensate Treatment Process

5


Process Dynamic Simulation
Adjust

Adjust

Z13

PV38

PV40

230oC

130oC
HV39

45%
40%
20%

E05

HS
HV02
50 %
30

E13

Pump
Around

P02
50 %
80
%
60

15
15

Adjust
AUTO
LI32-50%

FV15

Adjust
AUTO

Adjust
LI3150%

FV16
MAN
5%
Adjust

E18

LV31

<200
µS/cm

AUTO
MAN
0.35 Mpa
20 %

AI

LV32

T25
BL

PV49
E23

50
60 %

MLS

3.1 Mpa

PI40
8 bar

0.52 Mpa

E07

FCS
MAN
Adjust

157 C
o

Granulation

FCR

0.57 Mpa

CY
T02

MAN
20
%
LPW/T25/T07
15
50 m3/h
Adjust
AUTO
LI30 – 50%

Graduate Project

LV30

20
20

E16

FV30

Simulation and Optimization Condensate Treatment Process

14
14

6


PID CONTROLLER

sp
u

e

p
v
Frequency
A (ω)
Frequencyamplitude:
amplitude: A (ω)
= K= Frequency
φ (ω)
(ω) =
= 0Frequencyphase:
phase: φ
Slow
reponse
Quick
reponse
Steady
Steadystate
stateerror
errordisappears
occurs

Graduate Project

Simulation and Optimization Condensate Treatment Process

7


PID CONTROLLER

Up

Rase Time

Overshoot

Setting Time

SS Error

P

Decrease

Increase

Small Change

Decrease

I

Decrease

Increase

Increase

Eliminate

D

Small Change

Decrease

Decrease

Small Change

Graduate Project

Simulation and Optimization Condensate Treatment Process

8


TUNING PID CONTROLLER
Tuning PID
Controller

Calculate
Ziegler–
Nichols
Method

Quick
Responsibl
e

Graduate Project

Trial And
Error

Experiment

Algorithms

Slow
Responsibl
e

Simulation and Optimization Condensate Treatment Process

9


TUNING PID CONTROLLER
Tu
Kp1
Kp2

Kp1> Kp2 >
Ku

Ku
Ziegler–Nichols method for Quick Response

Control Type

Kp

Ti

Td

P

0.5 Ku

-

-

PI

0.45 Ku

Tu / 1.2

-

PD

0.8 Ku

-

Tu / 8

Classic PID

0.6 Ku

Tu / 2

Tu / 8

Pessen Integral Rule

0.7 Ku

Tu / 2.5

3 Tu / 20

Some overshoot

0.33 Ku

Tu / 2

Tu / 3

No overshoot

0.2 Ku

Tu / 2

Tu / 3

Graduate Project

Simulation and Optimization Condensate Treatment Process

10


TUNING PID CONTROLLER
Ziegler–
Nichols

Parameter

Kp

P
P
PI
PI
PID

Ti

TD
00
0
0

PID

Graduate Project

Simulation and Optimization Condensate Treatment Process

11


TUNING PID CONTROLLER

L=12
s

Tr
=523s

T=294
s

Tr
=420s

Graduate Project

Simulation and Optimization Condensate Treatment Process

12


OPTIMIZATION
8.6
0.7

R
06102

1

0.8
5

0.8
5

0.8
5

0.8
5

0.8
5

0.8
5

0.8
5

2

2.5

0.8
5

30 %

V1

0.85

V6

0.62
5

V5

V4

V3

V2

20m
15m3/
h

V6 (30%)

V5

V4

V3

V2

V1

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

T20 (min)

106.31

99.286

77.816

56.346

34.876

13.406

27’

20 m3/h

t
Graduate Project

15 m3/h

1h46
2h13
’
’
Simulation and Optimization Condensate Treatment Process

13


OPTIMIZATION
0.54 Mpa
90 OC

HS
HV02

30 %
50

FV16

50 %

0.55 Mpa
153 OC

MAN
Adjust

E18

0.54 Mpa
153 OC

FV15
MLS

50 %

MAN
Adjust

[NH3]
ppm

%
Conversion

%

the d ependence of Pe rcent c o nvers ion on temperature

120
100
80
60
40
20

0
50

Graduate Project

o

70

90

11 0

1 30

1 50

17 0

Simulation and Optimization Condensate Treatment Process

19 0

210

2 30

14

C


OPTIMIZATION
C 06102

Graduate Project

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

Name

Open Percent

Process Value

FIC 15

43-45

9800-10500 kg/h

FIC 16

55-56

2360 – 2650 kg/h

FIC 30

53-55

46-50 m3

LIC 30

53-55

50-65 %

LIC 31

53-55

50-60 %

LIC 32

43-44

40-45 %

PV 40

37-39

3.1-3.5 Mpa

Simulation and Optimization Condensate Treatment Process

15


Thank’s
For
Your
Time!

Graduate Project

Simulation and Optimization Condensate Treatment Process

16