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					                                            Robert Young



ESP and the OLI Engine Updates




    24th Conference October 23-24, 2007




                                             THINK SIMULATION!
                                  Opening new doors with Chemistry
                                                 THINK

What is the OLI Engine?
                                                 SIMULATION




       Non-linear equation solver
        ■   Newton-Raphson method
       Thermodynamic property methods
        ■   Helgeson equation of state
        ■   Bromley activity coefficient model
        ■   MSE activity coefficient model
        ■   SRK equation of state
                                      THINK
                                      SIMULATION
What Products Use the OLI Engine?


 Every OLI product uses the ENGINE
    ■ ESP
    ■ All of the Analyzers
    ■ All Alliance Products
       ◊UniSim OLI
       ◊PROII Electrolytes
       ◊Aspen OLI
       ◊HYSYS OLI
    ■ ScaleChem
    ■ ProChem
                                    THINK
                                    SIMULATION
Engine Updates


Mixed-Solvent Electrolytes (MSE)
  ■ Pseudo-components added
  ■ Expanded databank
     ◊1328 species
     ◊Organics added
                                 THINK
                                 SIMULATION
Engine Updates (cont)


Petroleum pseudo components
   ■ A single pseudo-component
   ■ Assays
     ◊ASTM D86 data
     ◊D1160 data
     ◊D2887 data
     ◊TBP data
                                                     THINK
                                                     SIMULATION
Engine Updates (cont)


Kinetics
   ■ Reference State Equilibrium Constant
      ◊Mole fraction reference state
      ◊K-Value made available to Kinetic Interface
                                    THINK
                                    SIMULATION
Engine Updates (cont)


Transport Properties
   ■ Gas Phase
      ◊Added Viscosity
      ◊Added Thermal Conductivity
      ◊Added Diffusivities
   ■ Liquid Phase
      ◊Electrical Conductivity
      ◊Diffusivities
      ◊Viscosity
                                              THINK
                                              SIMULATION
Engine Updates (cont)


Calculation speed
   ■ Added MSE two liquid phase initializer
   ■ Added solid inclusion initializer
                                          THINK
                                          SIMULATION
What is ESP?


Environmental Simulation Program
  ■ Plant flowsheeting program
  ■ Sequential modular approach
  ■ Available unit operations
     ◊Mixer and Splitters
     ◊Distillation Columns
     ◊Reactors (including Bio-reactors)
     ◊Neutralizers
     ◊Heat Exchangers
     ◊Compressors
                                                THINK
                                                SIMULATION
ESP Updates


Mass Transfer Limited Tower
  ■ Calculation of Mass Transfer Coefficients
     ◊Packed Towers (Billet and Schultes)
     ◊Sieve Trays
     ◊Bubble Cap
     ◊Valve Trays
  ■ User Added Mass Transfer Coef routine
  ■ Calculation of Heat transfer Coefficient
                                                                                   THINK
                                 Column Stage                                      SIMULATION




                    L j 1                 Vj                 Vapor side draw
                    x i , j 1             yi , j                         SDiV j
                                                                              ,
                    H jL 1                HV
                                            j

                    T jL 1
                                          T jV
     Q   L                                                                 QV
                                                                            j
         j

                                                     Ni
                    Liquid                          Vapor

                                                     E
FDiLj ; H jL
   ,                                                                   FDiV j ; H V
                                                                           ,      j
                                  Lj                      V j 1
                                  xi , j                  y i , j 1
      Liquid side draw
                                  H jL                    H V 1
                                                            j

         SD  L                    T jL                    T jV 1
             i, j                                            
                                                  THINK
                                                  SIMULATION
Mass Transfer Limited Tower



    Vapor Moles Transferred
       ■ Ni=VMTCi*Area*(YBi-YIi)
    Liquid Moles Transferred
       ■ Ni=LMTCi*Area*(XIi-XBi)
       ■ Where:
         ◊Ni    - moles transferred
         ◊VMTCi - Vapor side mass transfer coefficient
         ◊LMTCi - Liquid side mass transfer coefficient
         ◊Area - Interfacial area
                                                       THINK
                                                       SIMULATION
Mass Transfer Limited Tower



   Vapor – Liquid Equilibrium
     ■ YIi = Ki*Xii
   Mass Transfer Coefficient Calculation
     ■ Packed towers
        ◊Billet and Schultes
        ◊TransIChemE, Vol 77
        ◊September 1999
           ∆ Mass transfer coefficient is a function of:
               » Packing type and size
               » Transport properties
               » Phase density and flow rate
                                        THINK
                                        SIMULATION
OLI Alliance Engine


What is the OLI Alliance Engine?
   ■ Callable Interface to OLI Engine
      ◊Supports typical flash types
         ∆ Temp, Press
         ∆ Bubble point
         ∆ Dew point
         ∆ Vapor, Press
         ∆ Enthapy, Press
         ∆ Etc.
                                               THINK
                                               SIMULATION
OLI Alliance Engine (Cont)


Honeywell’s Unisim
   ■ Supports both Aqueous and MSE models
   ■ Contains OLI tower program
   ■ Contains OLI mass transfer tower
   ■ User Interface for OLI PRO
   ■ Pseudo components and Assays
   ■ Last update Sept 2007 (OLI version 7.0)
                                                THINK
                                                SIMULATION
OLI Alliance Engine (Cont)


Aspen Plus and OLI
   ■ Supports Both Aqueous and MSE models
   ■ Contains OLI Tower program
   ■ Pseudo components and assays
   ■ OLI Engine is a Property Option in Aspen
   ■ Last update July 2007 (OLI version 7.0)
                                          THINK
                                          SIMULATION
OLI Alliance Engine (Cont)


Aspen HYSYS and OLI
   ■ Supports Aqueous model
   ■ Contains OLI Tower program
   ■ Implemented as a fluid package
   ■ Last update 2003 (OLI version 6.6)
                                               THINK
                                               SIMULATION
OLI Alliance Engine (Cont)


SimSci PRO/II
   ■ Contains both Aqueous and MSE models
   ■ Last update July 2006 (OLI version 7.0)

				
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posted:2/8/2013
language:English
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