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MMscfd to kg/hr

  1. Sep 17, 2011 #1
    Hi everyone

    i need help converting 25MMscfd of natural gas to kg/hr
    i calculated the molecular weight of the natural gas to be 18.94g/mol
    the feed conditions are 6900kPa and 298K

    i'm pretty sure 1MMscfd = 1180m^3/hr at standard conditions, i'm not sure how to work this out for the feed conditions
  2. jcsd
  3. Sep 19, 2011 #2
    You can directly compute your mass flow in kg/hr as follows:

    mass flow = standard density X standard volumetric flow rate.

    Your standard volumetric flow rate is given as 25 MMscfd

    You can figure the standard density from your molecular weight:

    standard density = [ MW (natural gas) / MW (air) ] X standard density of air.
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