HYSYS start info 3M4 UNIQUAC Version 2 2008 by sNDd0a3


									                                   INTRODUCTION TO HYSYS
                                                                              4 November 2008
1. HYSYS is available in JHE-233A/234 only. You need you Mac email name and password to log-on to
   the system.

2. Reboot the computer, and enter your username & password.

3. Select START, Course Folders, Chemical Engineering, Chemeng3M04, and click on the ASPEN-
   HYSYS icon; help documentation is available within HYSYS.

4. SAVE, SAVE, SAVE. The network can crash at any time! Save the Base Case under a unique name
   (reload if you mess up); for subsequent modifications, save under a different name, AND HAVE FUN.

                                           USING HYSYS
1. Select ‘new case’ from the initial HYSYS Window (click on the blank white sheet icon). (I got an
   error/warning message at this point, and several more times, which can be ignored.)

2. The Simulation Basis Manager window opens. At the Components tab, click ADD and select the
   components you need (MiBK, water, and acetone; in this order) and close this window.

3. Click the Tab for Fluid Pkgs window. Click ADD and select UNIQUAC as thermodynamic property
   simulator (good for liquid-liquid systems with water).

4. Click the Binary Coeffs Tab and in the top right click the UNIFAC LLE option. Below this click the
   ALL Binarys option and notice that the Aij coefficients (in red) are now filled in. Close this window.

5. Now, select Enter Simulation Environment. This is a good time to Save (File, Save As) your work
   to disk or to the desktop (and email to yourself later).

6. You are now in the Process Flow Diagram (PFD) window, and many tasks can be done from here.

7. Right click and drag the Liquid-Liquid Extractor icon (a column with an “L” in it and 2 arrows in
   and 2 arrows out) from the unit operations window into your PFD. Right Click this icon and view
   properties. A series of three pages of fill-in forms will guide you through building the column.
   Choose and enter names for your inlet and outlet streams, and chose number of stages = 5. Only when
   one page is completed will the ‘Next>’ button light to allow you to move on. Choose 1 atm pressure
   and 25ºC and ‘DONE’. A red light box will indicate ‘unconverged’.

8. Close this Column window and return to the PFD. Now right click the inlet aqueous stream and fill in
   the properties (temperature, pressure, flow rate) and then click the Click Composition (menu on left).
   Be sure to Click the Basis button, and change the basis to mass fraction. Then enter the compositions
   of this stream. Close the window and repeat for the organic feed stream.

9. Open the Column, right click – view properties, and click Run and the case should converge. If you
   get an error then think about which phase should go in the top of the column?

10. In order to view compositions in mass fraction do the following. Close the Column window to go back
    to the PFD. Click the Workbook icon (5th from left, in second row from the top) to open the
    Workbook. Now on the top line of the main window click the Workbook option and chose Setup.
    Click Material Streams on the left then ADD on the right, and select Master Comp Mass Frac and
    click All on the right. This will add the component mass fraction of all components to the display in
    your workbook. Now you can change the format to 1.8 fixed (for instance) to show more digits in the
   display. (Here other variables can be Added or formats changed as well.)

11. One easy way to print your PFD and Workbook all at once is as follows. In the PFD screen, right click
    and Add Workbook Table and Material Streams and repeat to add Compositions (compositions
    may already appear in the Material Streams table from Step 10 above). Rearrange the images and click
    the small icon (between the + and – Buttons) on the lower left PFD screen to ‘Zoom All’. Right click
    in a blank part of the PFD screen, select Copy Pane to Clipboard and Scale by 100%; then Paste into
    MS-Word. Once in Word, select the image and change the size and using the Picture toolbar you can:
    Crop the picture and selecting the Colour icon you can change to Grey Scale, and adjust Contrast and
    Brightness to give an image that looks clear on black and white printing.

12. SAVE! This is your Base Case.

13. The real power of HYSYS now comes in that you can easily investigate many different cases (changing
    operating conditions, for example) and record the results of these changes one by one. You should
    keep track of changes in the main variables: Flow rate, Composition (mass fractions), and Acetone
    Recovery – see below (Pressure does not affect much change). View Properties on the Column and
    then click the Worksheet Tab to view or change these variables.

14. One way to view the column performance tray by tray is to double click the Column in the PFD and
    select tab Performance and from left menu Plots. From here you can view various variables as they
    change throughout the column. This information is useful for evaluating how the column has changed
    after changing an independent variable. Plots (or Tables) can be copied to clipboard as in instructions
    below. Also you can use Properties or Right click the plot and select Graph Control to change the
    appearance of the plot.

15. To calculate Acetone Recovery (acetone recovered in the organic phase/acetone in the feed stream),
    you can add a Spreadsheet to the PFD (drag from Unit Operations window), View Properties, Import
    variables needed to calculate recovery, click spreadsheet Tab and calculate recovery in one cell (as you
    would in any spreadsheet); name the cell (acetone recovery) and close the window. Then you can View
    Properties of the Spreadsheet again and Show Table; right click on the Table and ADD Variable and
    set the format to more digits (values of 1.000 for ‘recovery’ are meaningless!).

16. To change an independent variable and view a dependent variable, you can use the Tools Databook
    (top of window) function. In Databook select the Case Studies Tab, click ADD and Case Study 1 will
    appear. Then click Variables Tab, Insert, and chose the stream name(s) (‘object’) and the variable
    name (such as Temperature and Master Comp Mass Frac (Acetone)), for the variables of interest.
    When done, Click the Case Studies tab and specify the independent and dependent variables. Click
    View, set Bounds in Independent Variables Setup tab, then chose the Display Properties at that tab ,
    Start, and finally click Results. The resulting x-y plot can be Printed as above with Copy Pane to
    Clipboard, Scale by 100% and Paste into MS-Word. Or generate as a Table and copy to Excel to
    make your own graph. The format of the Plot can be changed by Right clicking in the plot and
    choosing Graph Control.

17. Many shortcuts and alternative paths to the same result are possible, so don’t be afraid to experiment
    and spend some time reading over the HYSYS Help files. At worse, you will crash and have to go
    back to your Saved Base Case.

18. Remember that the ‘Window’ of operation is somewhat small as your Mix point has to stay in the two-
    phase envelope.


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