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Development of ConsistentDynamic Process Models

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“Looking for modelling software?”

“Need ways to understand your process better?”

“Looking for specialist to develop process models?”

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Main Services and Products

Specialisation

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- Construction of Process Models

- Consulting Services Related to Mathematical Modelling

- Mobatec Modeller

- LauTrane Solver

Main Services and Products

Specialisation

Main Services and Products

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Specialisation

Main Services and Products

- Mathematical Modelling of any kind of process

knowledge in Chemical Engineering

- Modelling Activities for purpose of:

- Process Design

- Process Analysis

- Process Optimisation

- Process Control

- Real-Time Training Simulation

Specialisation

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ES Oriented

Why Mobatec?

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Unit operation oriented (flow sheeting)

Equation orientedEquation and System based

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ES Oriented

Why Mobatec?

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Equation and System based

- Dynamic modelling

- Mass and energy balances for free

- High modelling flexibility

- Graphical User Interface

- Library of equations

- Easy extendable libraries for predefined unit operations

- Flexible when user models are to be incorporated

- No problems with initialization of models

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ES Oriented

Why Mobatec?

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- Time spent on modelling often greater than time needed for finding solution

- Higher complexity of models

- Assist in model building

- Reduce time effort

- Reduce low-level modelling errors

- Provide input for existing simulators

- Increase maintainability of models

Models also understandable by persons who did not develop the

model

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Why Mobatec?

ES OrientedWhy Mobatec?

Application areas

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Expertise

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Application areas

Expertise

- Research

- Operator Training Simulator

- Real-Time Simulation

- Process Control

- Optimisation

Application areas

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- Reactor Modelling

- Homogeneous systems

- Heterogeneous systems

- Distillation

- Stripping

- Heat and Mass Transfer

- Vapour/Liquid interface

- Transfer from bulk fluid to particles

- Pore diffusion

- Adsorption on catalyst surface

- Multi-phase interactions

- Evaporation

- Polymers

- Crystallisation

- Thermodynamics

- Numerical Mathematics

- Software Development of

Modelling Tools

- Solver for large sets of

differential and algebraic

equations

- Modelling Environment

- Parameter Estimation

- Data Reconciliation

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Expertise

Application areasExpertise

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Building-up a model

DCS

Field Operation

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Building-up a model

Field Operation

DCS

Simple Example

- CSTR for liquid phase.

- 2 inlets and 2 outlet (one in the bottom + one overflow).

- Streams consisting of a mixture of Water and Methanol.

- Monitoring of main variables, either numerically (i.e.

level) or graphically (i.e. composition, temperature, flows,

etc.).

- Possibility to change manually valve positions and inlet

compositions during simulation.

- Level in the tank controlled by manipulating the valve

position of the outlet stream.

In Mobatec

Simple Example

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Building-up a model

Field Operation

DCS

In Mobatec: Step 1

Simple Example

In Mobatec

Step 1

Step 2

Step 3

Step 4

Step 5

Physical Topology

- “Break down” process into smaller, interconnected parts.

Elementary Systems

Connections

Inlet 1 Inlet 2

Overflow

Outlet

- Two basic building blocks

- Example:

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In Mobatec: Step 2 Building-up a model

Field Operation

DCS

Simple Example

In Mobatec

Step 2

Step 1

Species Topology

- Define “Chemistry” of process :

H2O – Water (H2O)

MeOH – Methanol (CH4O)

Species in System:

Step 3

Step 4

Step 5

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In Mobatec: Step 3 Building-up a model

Field Operation

DCS

Simple Example

In Mobatec

Step 3

Step 2

Equation Topology

- Information of Physical Topology and Species Topology .

- Define details, i.e. the Constitutive Equations: Select equations

for transfer laws, kinetics, geometry, equations of state, etc.

from (extensible) database.

Generating balance equations is trivial !

(Automated by Mobatec Modeller)

- Important for model completion: consistent set of equations

and consistent initial values.

Step 1

Step 4

Step 5

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In Mobatec: Step 4 Building-up a model

Field Operation

DCS

Simple Example

In Mobatec

Step 4

Step 3

Graphical User Interface

- These are some of the options (click on them for more info):

Update and display of plots and tables in simulation

Buttons

Display Objects

GraphicsStep 2

Step 1

Step 5

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In Mobatec: Step 4 Building-up a model

Field Operation

DCS

Simple Example

In Mobatec

Graphical User Interface

The user can add any image to both elementary systems and connections.

Example:

Liquid Liquid

Default With an icon

Back

Graphics

Step 4

Step 3

Step 2

Step 1

Step 5

Next

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In Mobatec: Step 4 Building-up a model

Field Operation

DCS

Simple Example

In Mobatec

Graphical User Interface

The user can add objects to display either numerically or graphically any variable. In case of a Numerical Display Object the user has the option to access to its value in simulation environment.

Example:

Numerically Graphically

Display Objects

Numerically(accessible in Simulation)

V 20%

Fm 20 kg/hStep 4

Step 3

Step 2

Step 1

Step 5

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In Mobatec: Step 4 Building-up a model

Field Operation

DCS

Simple Example

In Mobatec

Graphical User Interface

With the buttons the user has the option to include objects with different captions and colors by defining actions and conditions.

Example: Pump with on/off button

Buttons

Step 4

Step 3

Step 2

Step 1

Step 5

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In Mobatec: Step 4 Building-up a model

Field Operation

DCS

Simple Example

In Mobatec

Graphical User Interface

Example: Plotting the level in a tank

Update and display of plots and tables in Simulation

Step 4

Step 3

Step 2

Step 1

Step 5

Back Previous

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In Mobatec: Step 5 Building-up a model

Field Operation

DCS

Simple Example

In Mobatec

Step 5

Step 4

Simulation

Step 3

Step 2

Step 1

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DCS

Field Operation

Building-up a modelDCS Screenshot Example

Vendors

Screenshot

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DCS

Field Operation

Building-up a modelPossibility to connect to DCS Vendors

Screenshot

Vendors

Honeywell

Siemens

DeltaV

Invensys

Yokogawa

ABB

SMAR A

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Field Operation

DCS

Building-up a modelSpecial Interface via ExplainMedia

Operator

Interface

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Field Operation

DCS

Building-up a modelOutside Operator Interactions

Interface

Operator

CLOSE

OPEN

Click on

OPEN or CLOSE

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Outside Operator Interactions

Click on

OPEN or CLOSE

Field Operation

DCS

Building-up a model

Interface

Operator

OPEN

CLOSE

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Some of the Mobatec customers:

MSc. PDEng. Fernando Polanco

fernando.polanco@mobatec.nl

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Dr. Ir. Mathieu Westerweele mathieu.westerweele@mobatec.nl

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General email info@mobatec.nl

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