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Model 400 - De-ethaniser Column

Model 400 features a distillation column and the associated equipment required for the separation of ethane from a multi-component flow stream
It allows the user to note the effect on top product yield of adjusting any of the column pressure and temperature parameters.  The feed composition, pressure and temperature may all be adjusted by the user, in order to assess the performance of the system. Pop-downs of component breakdowns are available at key locations an the plant, thus enabling the efficiency of the column to be related to the operating conditions. The model includes 5 faults that may be introduced on a timed scenario, it includes procedural requirements for pump starts, and in addition to the normal running state, may also be started from an inerted, ambient temperature situation

Model Components

1 Multi-component distillation column 1 Overhead Condenser
1 Overhead Vessel
1 Reboiler
2 pumps
6 control loops

Model 401 - De-propaniser Column

Model 401 features a distillation column and the associated equipment required for the separation of propane from a multi-component flow stream.  It allows the user to note the effect on product yield of adjusting any of the column pressure and temperature parameters.  The feed composition, pressure and temperature may all be adjusted by the user, in order to assess the performance of the system. Pop-downs of component breakdowns are available at key locations an the plant, thus enabling the efficiency of the column to be related to the operating conditions. The model includes 10 faults that may be introduced on a timed scenario, it includes procedural requirements for pump starts, and in addition to the normal running state, may also be started from an inerted, ambient temperature situation

Model Components

1 Multi-component distillation column 1 Overhead Cooler
1 Overhead Vessel
1 Reboiler
2 pumps
6 control loops

Model 402 - Separation Train

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Model 402 features a complete separation train for crude oil.  Oil exits from up to five wells through a manifold system..  This includes a facility for test separation, or for the stream to be connected to a train of HP, MP and LP separators.  Included is the gas takeoff to a knock-out drum, the oil takeoff to a pump, and a water exit to a pump.   Each well may be connected in separately, and each exhibits different composition and flow characteristics.  

Model Components

3 Phase Test Separator
3 Phase HP Separator
3 Phase MP Separator
Separator with Boot
5 Crude oil wells
1 Test manifold system
1 Production manifold system
2 Pumps
13 Controllers
16 Valves
20 Graphical process parameters
10 Stream composition displays

Model 403 - Wellheads and Risers

Model 403 featues two separate oil wells from subsea through to two surface vessels - a slug catcher and a test separator.   Each of the well outputs may be directed to either vessel, and each exhibits different composition and flow characteristics. Gas lift control via choke valves enables the risers?flows to be brought on-line from a shut-in starting point. A slugging characteristic (pipeline separation of oil/gas/water) may also be introduced into the surface vessel feed line compositions.

Model Components

2 Crude oil wells
1 3 Phase test Separator
1 2 phase slug catcher
1 Test manifold system
1 Production manifold system
6 Controllers
20 Valves
36 Graphical process parameters
10 Stream composition displays
Slugging characteristic generator

Model 404 - Advanced Fixed Speed Compressor

Model 404 features a single stage fixed speed centrifugal compressor. The compressor may be operated using Hydrocarbon gases, or may be cold started from a pressurised N2 situation. Compressor loading is controlled by adjusting the suction and discharge pressures, and the inlet temperature. User pop-ups allow a switch-over from N2 to HC gas, and also to run the simulation with alternative displays of pressure units. A graphical display shows the value of adiabatic head against the flow.  

Model Components

1 Single stage centrifugal compressor
1 Air fin fan cooler
1 Suction and Discharge drum
1 Compressor gas recycle line
4 Controllers
1 Dial
1 Switch compressor on/off
Stream composition displays  
17 Graphical process parameters
12 Alarms (with alarm history)
N2 or Hydrocarbon gas switch
Bar/Psi/kPa pressure unit switch
1 Dynamic graph - Adiabatic Head v Flow

Model 405 - Advanced Variable Speed                    Compressor

Model 405 features a single stage centrifugal compressor. The ratio of Hydrocarbon gases may be adjusted, and the compressor may be cold started from a pressurised N2 situation. Compressor loading is controlled by adjusting the suction and discharge pressures, and the inlet temperature. User pop-ups allow a switch-over from N2 to HC gas, and also to run the simulation with alternative displays of pressure units. Many elements are variable, including gas composition, controller PID settings and valve CV’s.

Model Components

1 Variable speed compressor
1 Air fin fan cooler
Suction and Discharge drums Compressor gas recycle line
4 Controllers
1 Switch compressor on/off
3 Input gas parameters
8 Controller PID adjusts
3 Valve Cv adjusts
N2 or Hydrocarbon gas switch
Bar/Psi/kPa pressure units switch
Dynamic graph - Adiabatic headb against flow

Model 406 - Advanced Reciprocating Compressor

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 Model 406 features a two stage reciprocating compressor. The compressor may be cold started from a pressurised N2 situation. User pop-ups allow a switchover from N2 to HC gas, and for alternative displays of pressure units. Compressor flow is controlled by adjusting the ratio of clearance volume to swept volume. The control output to the recycle valve can be switched between outputs from three different pressure transducers. A first stage valve leakage fault may be injected

Model Components

1 Two stage reciprocatingcompressor
Coolers
Suction and Discharge drum Compressor gas recycle line
5 Controllers
3 Switches
3 Input gas parameters
10 Controller parameter adjusts
4 Valve Cv parameter adjusts
N2 or Hydrocarbon gas switch
Bar/Psi/kPa pressure unit switch
Fault injection of valve leakage
Pressure drop adjust across
production manifold

Model 407 - Advanced 2 Stage Compressor

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Model 407 features a two stage centrifugal compressor which is running on a single shaft. Each stage has its own antisurge control system. The ratio of Hydrocarbon gases may be adjusted, and the compressor may be run up from a closed-in recycle situation. Individual head curves are displayed. The compressor feeds a pipeline, whose length may be set between 0.5 and 200 km. The source pressure and the pipeline discharge pressure may be set over a wide range. Alternative displays of pressure units are also available.  

Model Components

Two stage variable speedcompressor
Pipeline output with length adjust
Source and destination pressure adjust
2 Air fin fan coolers
2 Suction drums
2 Compressor gas recycle lines
7 Controllers
1 Switch compressors on/off
3 Input gas parameters
Controller PID adjusts
Valve Cv adjusts
N2 or Hydrocarbon gas switch
Bar/kPa pressure units switch Dynamic graph - Adiabatic head against flow

Model 408 - Compressor with Pipeline

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 Model 408 features a single stage centrifugal compressor which is based on the SIM405 Advanced Variable Speed Compressor. The ratio of Hydrocarbon gases may be adjusted, and the compressor may be run up from a closed-in recycle situation. The Compressor feeds a pipeline, whose length may be set between 0.5 and 200 km. The source pressure and the pipeline discharge pressure may be set over a wide range. Alternative displays of pressure units are also available.  

Model Components

Variable speed compressor
Pipeline output with length adjust Source and destination pressure adjust
Air fin fan cooler
Suction and Discharge drums
Compressor gas recycle line Controllers
1 Switch compressor on/off
3 Input gas parameters
8 Controller PID adjusts
3 Valve Cv adjusts
N2 or Hydrocarbon gas switch
Bar/Psi/kPa pressure units switch
Dynamic graph - Adiabatic head                            against flow

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Model 409 - Two Stage Compressor with ESD

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 Model 409 features a two stage centrifugal compressor which is running on a single shaft. Each stage has its own antisurge control system. The ratio of Hydrocarbon gases may be adjusted, and the compressor may be run up from a closed-in recycle situation. Individual head curves are displayed. The compressor feeds a pipeline, whose length may be set between 0.5 and 200 km. A typical Emergency Shutdown panel is included as a pop-up, with responses determined by the use of the model

Model Components

Two stage variable speedcompressor
Pipeline output with length adjust
Source and destination pressure adjust
2 Air fin fan coolers
2 Suction drums
2 Compressor gas recycle lines
7 Controllers
1 Switch compressors on/off
3 Input gas parameters
Controller PID adjusts
Valve Cv adjusts
ESD Panel with responses
Bar/kPa pressure units switch troller parameter adjustment box

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 Model 410 - Turbo-Expander

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Model 410 features a typical turbo-expander compressor package. The full interaction between the compression and expander side is modelled.
The expander and compressor can both be bypassed individually for start-up conditions.
The source pressure and the discharge pressure may be set over a wide range. Alternative displays of pressure units are also available  

Model Components

Turbo-Expander Compressor
Suction scrubber }
Low temperature separator
Feed pre-cooler
Source and destination pressure
adjust
Expander Joule-Thomson valve
Compressor gas recycle line
Expander bypass valve
Compressor bypass valve
Expander vane controls
7 Controllers
3 Input gas parameters
14 Controller PID adjusts
3 Valve Cv adjusts
N2 or Hydrocarbon gas switch
Bar/Psi/kPa pressure units switch

Model 411 - Refrigeration System

Model 411 features a refrigeration system that operates using propane to condense the overhead product of a de-ethaniser column. The process fluid flows through the tube-side of the overheads condenser. The refrigerant circuit starts at the Flash Drum. This feeds the condenser, where the refrigerant boils off, cooling the process fluid. The refrigerant vapour is compressed via a Centrifugal Compressor, then passes through an Air Cooler into the Refrigerant Receiver, and feeds through a Refrigerant Subcooler before entering the Flash Drum.

The flow rate and temperature of the column top product is adjustable to allow a variable loading of the system.

The model includes procedures to start the compressor system, including permissive start routines.

The system includes 7 control valves, 7 temperature indicators, control of the Air Cooler louvres from Receiver pressure, and a limited ESD system. The model includes full trending of the process temperature, pressure and flow variables.