Dynamic Simulation for Process Design

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Aug 11, 2005 - Experiences. ▫ From Design to Training. 1. Design .... Comprehensive Model Libraries. Equipment .... Develop technician diagnostic, tuning and.
Dynamic Simulation in the complete Plant Lifecycle

Peter Both, Invensys Systems GmbH, Invensys SimSci-Esscor Cal Depew, Invensys Systems Inc., Invensys SimSci-Esscor

Process Systems Get More from One Avantis • Foxboro • SimSci-Esscor • Triconex

Agenda

Process Systems

ƒ Experiences ƒ From Design to Training. 1. 2. 3. 4.

Design Control Checkout Initial Training Plant Performance Improvement

ƒ Questions

Company Confidential

2

Dynsim OTS Projects

Process Systems

8/11/05

ƒ Refining

ƒ Refining (Cont’d) – Total Leuna

– ExxonMobil ƒ ƒ

ƒ

Preferred OTS Services Provider New projects underway

– Total Dalia ƒ

– Husky Energy ƒ ƒ ƒ ƒ

Crude Unit Gas Oil Hydrotreater Hydrogen Plant Sulfur Recovery Reformer Naphtha Hydrotreater Diesel Hydrotreater Sulfur Recovery OrcrudeTM (Crude/Vacuum/Cracking) Gasification Hydrocracker Sulfur Recovery Air Separation Unit

– Total Normandy (underway) ƒ ƒ ƒ

Hydrocracker Hydrogen Plant Sulfur Recovery Unit

– Shell Bonga ƒ

FPSO

– Shell EA ƒ

FPSO

– Saudi Aramco Uthmaniyah ƒ

– Opti-Canada Long Lake (underway) ƒ ƒ ƒ ƒ ƒ

Integration

ƒ Upstream

– PDVSA Puerto La Cruz (underway) ƒ ƒ ƒ ƒ

Integration

Reverse Osmosis Plant

– ExxonMobil ERHA (underway) ƒ

FPSO

– Agip-Petroli Kashagan (underway) ƒ ƒ ƒ ƒ

Offshore platform Onshore turbo expander gas plant Oil Stabilization Sulfur Recovery

ƒ LNG – Tractebel Reganosa (underway) ƒ Company Confidential

LNG Terminal 3

Dynsim OTS Projects

Process Systems

8/11/05

ƒ Power – – – – – – – – – – – – – – – – –

Southern Company (13 Systems) Wisconsin Energy (3 Systems) First Energy (2 Systems) TransAlta Centralia Plant PPL Montana (2 Systems) Intermountain Power Public Service New Mexico (2 Units plus environmental models) Deseret Mississippi Power Puerto Rico Power Authority (PREPA) (2 Systems) Iberdrola (Combined Cycle) Platte River Rawhide Dayton Power and Light (2 Systems) Washington Group Mystic River (Combined Cycle) Tuscon Electric Sceco PP9 (Combined Cycle) 50 More

Company Confidential

4

Dynsim Users

Process Systems

8/11/05

ƒ Japan

ƒ Global

– ExxonMobil

ƒ North America – – – – – – –

Bechtel Colt Engineers ABB Lummus Conoco Phillips Koch Glitsch Fluor Daniel Nova Chemicals

ƒ Latin America – PDVSA

ƒ Europe – – – – – –

Snamprogetti Eni S.p.A. (Agip) E&P Technip Hyperion Polimeri Europa (ENI Chemicals) EDL Anlagenbaugesellschaft mbH

Chiyoda JGC (E&C) Kobe Steel (E&C) Tsukishima Kikai (E&C) IHI (E&C) Shinko Air Water (E&C) Mitsubishi Gas Chemical (Chemical) Sumitomo Chemical (Chemical) Toray (Chemical) Maruzen Chemical (Petrochemical) Toyota Motor (Bio Dept) Idemitsu Mitsubishi Materials Air Water National Institute of Advanced Industrial Science and Technology – Kanazawa Univ. – – – – – – – – – – – – – – –

Company Confidential

5

Process Systems

From Design to Training

Company Confidential

6

Process Systems

Get More from Dynsim SIM4ME Dynsim/SIM4ME Dynsim includes Model Instructor GUI DCS

• Multiple Engines DYNSIM

• Simulation Executive • Instructor Interface

SIM4ME

PLC

Vs. Other Products

Excel

Other products: • Single Engine

2nd

• Executive not included

DYNSIM

• Instructor features not included Company Confidential

7

Combined Engineering/Instructor GUI Data Historian Thermodynamics Cross Referencing

Process Systems

Scenarios Interactive Control Model Library

Snapshot Management

Malfunctions

Trends

Custom Widgets Company Confidential

8

Dynamic Simulation Suite

Plant / Validate Design PROCESS DESIGN

1

Process Systems

Checkout Controls

Train Personnel

Improve Performance

DCS CONFIGURATION

INITIAL START

PLANT OPERATION

2

3 Company Confidential

4 9

Project Phase 1: Plant Design - Validate Design

Process Systems

“Test your plant in the office, not in the field. Dynamic simulation can verify plant design before you commit capital to a project.”

Company Confidential

10

Project Phase 1: Plant Design Dynamic Simulation Benefits

Process Systems

Validate Design

PROCESS DESIGN

DCS CONFIGURATION

INITIAL START

PLANT OPERATION

• Reduce equipment cost through reduced overdesign • Verify safety of relief and flare systems • Validate controls such as compressor anti-surge • Analyze operability for highly integrated plants

Company Confidential

11

SIM4ME: PRO/II to Dynsim Translator

Process Systems

ƒ Open PRO/II file from Dynsim.

Steady State Simulation S1

ƒ Transfer Thermo data

S4

C1

ƒ Adds additional equipment

S2

ƒ Flowsheet Layout

S6 S3

ƒ Preliminary Equipment Sizing

S5

Dynamic Simulation

Company Confidential

12

Comprehensive Model Libraries Equipment

Controls

Electrical

Company Confidential

Process Systems

Utilities

13

Integrated Solutions DYNSIM™ & Excel

Process Systems

Surge Controller

Trip motor

Company Confidential

Data Export to/from Microsoft Excel Engine

14

Dynamic Engineering Studies (Dynsim) Column Relief Load Reduction

Process Systems

ƒ Problem – Conventional methods are very conservative leading to overly expensive flare systems and unnecessary flare or flare header replacements.

ƒ Solution – Dynamic simulation provides an alternative to conventional calculation methods and provides substantially lower relief loads. Flare load reductions up to 50% are possible. – Dynamic simulation is consistent with API RP-521 methods.

ƒ Benefits – Save relief and flare system capital expenditures up to several million U.S. dollars.

Company Confidential

15

Dynamic Engineering Studies (Dynsim) Compressor Surge

Process Systems

ƒ Problem – Expensive compressors can be damaged by inadequate anti-surge control and equipment design.

ƒ Solution – Validate controls to keep compressors out of surge, especially during startup and shutdown. – Evaluate performance using hot gas bypass vs. cold gas bypass designs.

ƒ Benefits – Prevent damage multi-million dollar machinery.

Company Confidential

16

Dynamic Engineering Studies (Dynsim) Cryogenic Depressuring

Process Systems

ƒ Problem

– Vessels with light hydrocarbons become very cold during depressuring requiring expensive metallurgy.

ƒ Solution

– Calculate the mean metal temperature as a function of time during depressurization for gas processing and LNG applications. – The mean metal temperature is substantially less severe than the fluid temperature and expensive metallurgy and design choices can be avoided.

ƒ Comments

– Depressuring model is validated with actual data.

ƒ Benefits

– Avoid use of stainless steel metallurgy for savings up to several million U.S. dollars. Company Confidential

17

Project Phase 2: DCS Configuration

Process Systems

“Checkout of controls in the lab can save days or weeks of commissioning time and can get your plant on line sooner.”

Company Confidential

18

Project Phase 2: DCS Configuration Dynamic Simulation Benefits

Validate Design

PROCESS DESIGN

Process Systems

Checkout Controls DCS CONFIGURATION

INITIAL START

PLANT OPERATION

• Identify control logic errors • Identify graphics configuration errors • Test signal ranges • Pre-tune control loops • Test integrated and coordinated controls

Company Confidential

19

Modular Simulation Architecture Available DCS/PLC Interfaces

design operate Process Systems

ƒDCS –

Foxboro I/A Series FSIM (virtual stimulation)



ABB/Bailey BALSIM (full em.)



ABB/Bailey BALTRAN (Partial Stim)



ABB Industrial IT



Emerson OVATION



Emerson DeltaV



Honeywell (third-party)



Yokogawa (third-party)

GUI

SIM4ME

ƒPLCs –

Triconex TRISIM (virtual stimulation)



Allen-Bradley PLC-5



GE Mark IV/V/VI



Alstom Funoc Turbine



Modicon PLC-984



Woodward Governor

ƒGeneric –

OPC Interface

Dynsim Engine

DCS

Excel® Engine

PLC

Requires additional Licensing Company Confidential

3rd Party Engine

20

Control Checkout Studies (Dynsim/TRISIM Plus) Turbomachinery (TMC) Control Checkout

Process Systems

ƒ Problem – Complex turbomachinery control (TMC) can lead to startup delays. Improperly tuned controls can lead to damage to multi-million dollar equipment. ƒ Ethylene ƒ LNG ƒ FCC Wet Gas Compressors

ƒ Solution – Checkout new TMC controls before commissioning or poorly behaving existing controls

ƒ Benefits – Validate Triconex controls to get new controls on line sooner. – Improved reliability – Prevent equipment damage Company Confidential

21

Project Phase 3: Initial Startup Personnel Training

Process Systems

“Train operator in the safe and efficient operation of the plant with an emphasis on preventing catastrophic failure.”

Company Confidential

22

Project Phase 3: Initial Startup Operator Training

Validate Design

PROCESS DESIGN

Checkout Controls

Train Personnel

DCS CONFIGURATION

INITIAL START

Process Systems

PLANT OPERATION

• Familiarize operators with new graphics • Train operators for startup and shutdown • Improve operator emergency response skills • Develop technician diagnostic, tuning and maintenance skills

Company Confidential

23

Objectives

Process Systems

ƒ Improve Control System Response ƒ Expand Operator Comfort Zone ƒ Capture Best Practices Procedure ƒ Increase Startup/Shutdown Training Frequency ƒ Improve Reliability (Upset, Abnormal Situation, Malfunctions)

Company Confidential

24

Instructor Overview Background

Company Confidential

Process Systems

25

Project Phase 4: Plant Operation Improve Plant Performance

Process Systems

“Test both process and control system design modifications in a risk free environment”

Company Confidential

26

Project Phase 4: Plant Operation Improve Plant Performance

Validate Design

PROCESS DESIGN

Checkout Controls

Train Personnel

DCS CONFIGURATION

INITIAL START

Process Systems

Improve Performance

PLANT OPERATION

• Experiment with control system modifications • Evaluate alternative process designs • Optimize operational procedures • Test and pre-tune APC systems

Company Confidential

27

Improve Plant Performance Test Bed Value Proposition

Process Systems

ƒ By understanding an existing process better, small changes in the arrangement of existing plant equipment, feed point locations, operating conditions or control strategies can result in tremendous improvements in safety, yield, process variability, energy utilization, product quality & waste minimization. ƒ By understanding the existing controls better, small changes to control interlock logic and permissives, operator display organization, and controller tuning can result in tremendous improvements to emergency condition response and startup and shutdown procedures. We have a uniquely competitive position w.r.t. Foxboro I/A Series control systems.

Company Confidential

28

Large Offshore Simulator Architecture InTouch InSQL

SIM4ME Instructor Station GUI

Process Systems

CCCSIM Micro I/A

TRISIM Well Locate

InControl

Thorn Graph

ABSIM

In P

3rd Party Process Model Utilities

In

3rd Party Process Model Water Flood 3rd Party Process Model 3rd Party P Production Process Model Inlet

* Previous version of Dynsim (Tsunami 6.0.22)

FSIM Foxboro I/A 48 cp60s

SIM4ME Executive

Pr

Instructor AW

Instructor WP

rog res s

OLGA2000 og re ss

Wells/Pipelines

OLGA2000

Operator WP

(Wells/Pipelines)

Dynsim-P Models

Company Confidential

29

Plant Testbed Example FPSO with Integrated Pipeline Modeling

Process Systems

ƒ Required by FPSO (Floating Production Storage and Offloading) OTS project. ƒ Predict operating procedures to avoid Slugging ƒ Test process improvements ƒ Test control improvements

Elevation profile

GUI

FLOWLINE

E le v a tio n [ m ]

300 200 100 0 -100

DYNSIM

Foxboro IA FSIM

0

500

1000 1500 2000 2500 3000 3500 4000 4500 5000 Horizontal length [m]

OLGA-HYSYS Demo case - Level 1 Cource: Exercise 1

SIM4ME

Triconex TRISIM

OLGA 2000

Company Confidential

30

Complete Lifecycle

Process Systems

“One dynamic model over the complete plant lifecycle.

Company Confidential

31

SimSci-Esscor Dynamic Simulation Suite: “From Design to Training!” Validate Design

PROCESS DESIGN

• Reduce cost through reduced over design • Verify safety of relief and flare systems • Validate controls such as compressor anti-surge • Analyze operability for highly heat integrated plants

Checkout Controls

Train Personnel

DCS CONFIGURATION

INITIAL START

• Identify control logic and graphics errors • Pre-tune control loops • Test instrument ranges • Test integrated and coordinated controls

• Familiarize operators with new graphics • Train operators for startup and shutdown, and emergencies. • Develop technician diagnostic, tuning and maintenance skills

Company Confidential

Process Systems

Improve Performance

PLANT OPERATION

• Experiment with control system modifications • Evaluate alternative process designs • Optimize procedures • Test and pre-tune APC systems

32

SimSci-Esscor Dynamic Simulation Suite: “From Design to Training!” Validate Design

PROCESS DESIGN

SimSci-Esscor Dynamic Simulation Suite

Process Systems

Control Checkout

OTS

Plant Improvement

DCS CONFIG.

INITIAL START

PLANT OPERATION

YES

YES

YES

Engineering Only Simulators

YES

Need Auxiliary control emulations

Not an integrated environment and requires add tools

Too difficult to modify and maintain

Equation Solvers

YES

Not used for this purpose

Not used for this purpose

OTS Only Simulators

Not usually used for this purpose

Not used for this purpose (e.g. DCS, Design)

YES

Company Confidential

YES

YES

Too difficult to modify and maintain

33

Why do Dynamic Engineering?

Process Systems

ƒ Reduce Equipment Costs – Many design parameters are based on transient operating conditions.

ƒ Evaluate First of a Kind Plant Designs – These plants may have unforeseen process, control, and relief problems. – Reveal problems during design to avoid costly modifications after startup.

ƒ Validate Control Strategy – Test the control strategy as defined on a PFD. – Avoid costly troubleshooting and tuning efforts in the field.

ƒ Test Heat Integration – Complex designs with tight heat integration may need supplemental startup heat.

ƒ Analyze Flare and Relief Systems – Validate relief system design as a result of a Hazop analysis. Company Confidential

34

Dynsim for Process Equipment Design:

Process Systems

Results in significant equipment cost savings

Induction motor torque curve 2.5

2

Torque factor

1.5

1 Series1 0.5

0 0

0.2

0.4

0.6

0.8

1

1.2

-0.5

-1

ƒ Compressor studies avoid equipment damage and lost production. speed - nornalized

ƒ

Cryogenic Depressuring Studies save eliminate stainless steel metallurgy.

ƒ HPU Depressuring Studies can save US$millions by reducing feed/effluent heat exchanger design

ƒ Column Relief Load Reduction studies can eliminate unnecessary flare system expansions

Company Confidential

35

Dynamic Engineering Applications

Process Systems

ƒ Fractionation – Column Relief Studies for unit revamp studies to verify safe design and avoid/reduce flare system expansion. – Control validation

ƒ Compressors – Surge Control – Startup

ƒ Refinery Flare Systems – Time dependent pressure profiles

ƒ Upstream/Gas Processing Cryogenic Depressuring – minimum metal temperature and metallurgy selection – Valve Sizing

ƒ Hydroprocessing Unit Depressuring – Feed/Effluent Exchanger design.

ƒ Refinery Steam Generation, Cogen, and Distribution Studies – Backup steam response requirements – Control validation

ƒ Boiler Draft Studies – Boiler implosion risk analysis Company Confidential

36

Dynamic Engineering Studies Benefits Summary

Process Systems

ƒ Improve Project ROI (Process Design Studies)

– $1M for relaxed flare/vessel metallurgy requirements – $2M for removed requirement for flare system revamp at greater unit throughput – $5M to avoid boiler strengthening to FGD retrofit

ƒ Reduce Commissioning Time (Control/Operability Analysis) – – – –

Validate controls for stable operation Verify process will behave as expected. Checkout startup and shutdown procedures and logic Get on line sooner!!

ƒ Improve Operations (Decision Support / OTS) – – – – –

Reduce off spec production Reduce flaring Improve safety Protect equipment Maintain operator knowledge

Company Confidential

37

Process Systems

Thank you

Company Confidential

38

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