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ProMax Tutorial. Terry A. Ring CH EN 4253. Steady State Process Simulation AspenPlus ProMax ChemCad Hysis HySim ProSim CADSim OLI Process Simulator KemSimp Chemical Workbench Code Ascend IV. Dynamic Process Simulation Aspen Dynamics CADSim Simulation Solutions, Inc.

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Promax tutorial

ProMax Tutorial

Terry A. Ring

CH EN 4253


Process simulation software

Steady State Process Simulation

AspenPlus

ProMax

ChemCad

Hysis

HySim

ProSim

CADSim

OLI Process Simulator

KemSimp

Chemical Workbench Code

Ascend IV

Dynamic Process Simulation

Aspen Dynamics

CADSim

Simulation Solutions, Inc.

Process Simulation Software


Overview differences to aspen

Aspen

Next Button

Many units that perform a given function

Degrees of Freedom are chosen for you

Setup for kinetic reactions are tricky

Accounts for particle sizes

Simple block models

Automatic Plant Costing (Icarus)

ProMax

More Thermo Package Choices

Fewer units that perform a given function

You choose the Degrees of Freedom

Reaction setup is more straight forward

Detailed design of

HX

Reboilers

Condensers

Distillation Columns

Does not deal with particle sizes

No Plant Costing

Some minor bugs not worked out

OverviewDifferences to Aspen

Industrial Standard

New Company


Steps to run

Aspen (Left Hand Bar)

Title

Components

Thermopackage

Process Flow Sheet

Feed Stream

Unit Specifications

Fixed degrees of freedom

Run

Results

Report

ProMax

Environment

Components

Thermopackage

Process Flow Sheet

Feed Stream

Unit Specifications

Various degrees of freedom

Run

Results

Report

Steps to Run


Degrees of freedom

Degrees of Freedom

  • Statistical Mechanics –Gasses

    • Gives Heat Capacity of Gasses = NR/2


Degrees of freedom1

Phase Diagram

F = C-P+2

C=Components

P=Phases

2 = T and P

Process Simulation

ND= Nvariables-Nequations

Nvariables for each stream

Mole fractions

Mole flow rate

Enthalpy (T,P)

Nequations

Overall Component mole balance

Mole fractions add to 1.0 for each stream

Enthalpy Balance

Degrees of Freedom


Example i

Example-I

  • Problem 5.12

  • Alternatives in preparing a feed. A process under design requires that 100 lbmol/hr of toluene at 70F and 20 psia be brought to 450 F and 75 psia.

  • Flow sheets using Peng-Robinson

    • Boil-Superheat-Compress

    • Pump to 75 psi-Boil-Superheat


Problem 2

Problem -2

Use Gibbs Minimization reactor in Aspen to determine the products of reaction at 10 atm and 200 C.

Feed equimolar in CO and H2


Example 4

Example-4

  • Distillation/Flash

  • Isopropanol – Water

    • 100 lbmole/hr

      • Flash at 90C

      • Distillation

        • R=2

        • BUR=3


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