Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Process engineering mass balance in the douglas aproach

  1. Jan 21, 2010 #1
    Hey guys i was hoping for some help with the mass balance of the equations for the production of styrene from ethylbenzene. I have attached my problem sheet and my answer sheet, q 7 is what i am stuck on please help me i am confused

    Attached Files:

  2. jcsd
  3. Jan 22, 2010 #2
    Mole proportions of each species are
    EB= 0.98 - x-y-z
    Styrene= x
    H2= x-z
    Bz = y+0.02, ethylene= y
    Tol and methane= z
    Specify x= 0.3, 0.4, 0.5, 0.6
    Then Figure out y, z as a function of x (two formulas)
    Prorate all the moles above to get the right amount of product.
    Do economics on the products and fuel requirements, to see where you are.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook