1. What are these Vapor-Liquid Separator Programs?

    These applications size/rate  horizontal and vertical vapor-liquid separators based on a proven set of rules, and sound chemical engineering fundamentals. Inlet and outlet nozzles are sized, too. The apps are easy to use; simple, quick, and reliable.

  2. How to use them?

    Navigate the text fields with the [Tab] key or the mouse. Using the [Enter] key will slow your work considerably. Enter all required fields, then press the Size Vessel button. Be sure that you enter the desired liquid holdup value. The apps assume that this is the total liquid holdup from low level to high level, including allowance for alarms, trips, etc. If you have an application where water settling is required, be sure to include the minimum volume required to affect the water settling. 

    Save the results form to your local computer for later use to prepare a process datasheet for the separator.

  3. The Programs

    Horizontal Separator Design:
    Select a process separator or flare KO drum from the drop-down list. Select the configuration from the list provided, too. When you change either selection, the optimum size will automatically be calculated, providing that all fields are complete. Select no demister or demister type from the drop-down list. You must input the operating pressure and demister location, too. The demisters are derated for high pressure and low pressure operation. 

    When sizing a flare KO drum, you may specify the droplet size you wish to separate.  The drum will be resized automatically whenever you change this selection.

    Of course, to be certain that everything calculates, and you have the correct solution, press the Size Vessel button  when all your entry is complete. Except when you use the +- buttons to explore alternate sizes. The Size Vessel button press will always calculate the optimum size for the selections that appear on the form.

    Water decanting parameters are based on a 125 micron diameter water droplet. Use your company's criteria for water settling. You can add a boot when you create a datasheet from your web form results.

    Horizontal Separator Rating:
    Select a process separator or flare KO drum from the drop-down list. Select the configuration from the list provided, too.  Be sure to enter all the details; demister, boot, levels, nozzles, etc. 

    To be certain that everything calculates, and you have the correct solution, press the Rate Vessel button  when all your entry is complete.  Look for any warnings that are provided on the form. 

    Water decanting parameters are based on a 125 micron diameter water droplet. Use your criteria for water settling requirements.

    Vertical Separator Design:
    Select no demister or demister type from the drop-down list. You must input the operating pressure, too. The mesh demisters are derated for high pressure and low pressure operation. 

    To be certain that everything calculates, and you have the correct solution, press the Size Vessel button  when all your entry is complete.

    Liquid Drum Design:
    Enter the appropriate parameters. The program will select the minimum cost vessel based on weight.

    Use this program if you have a vertical separator whose size is determined by the liquid holding capacity.
  4. Additional info...

    The design programs display the minimum cost vessel size for the specified conditions. Use the  + - buttons adjacent to the displayed diameter for a larger (or smaller) diameter and observe the vessel cost index. Note that the vessel is no longer the lowest cost when you do this. Small input for flowrate, density, etc might result in calculation problems. This will causes a warning to appear at the top of the page, and calculations are not performed.