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  • Users: zorn
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  1. zorn

    shutdown and startup

    Are there no bypass lines?
  2. zorn

    Cooling water Demands for Bio-reactor

    dcs/dt=Q/V*(cs_in-cs_ss)-1/V*(v_max*cs_ss)/(Km*cs_ss)=0 (5)
  3. zorn

    Cooling water Demands for Bio-reactor

    Here it is an idea for having a very first approx of the solution that you can use for more precise calculations: Hypotesis: 1)water like system (cp,k,d water like) 2)simple Michaelis Menten cinetic enzyme-substrate expression 3)CSTR reactor (well mixed) 4)fixed U derived from tables: 200-500...
  4. zorn

    Cooling water Demands for Bio-reactor

    Just another question Zamu: is the reactor continuously or batch operated (i guess continuously)?
  5. zorn

    Cooling water Demands for Bio-reactor

    Dear Zamu, is the cooling jacket already designed and built or do you need to design the whole system?
  6. zorn

    Oil vapor in H2 - carbon trap sizing

    Dear Gmanonskis, i think we need to know the main temperature in the coalescer (and pressure), because it's probably a mist problem and not a "flash" problem, or maybe both. Plus, is it a vertical or horizontal separator, has it a mist separator on the outlet? I investigated a bit about the...
  7. zorn

    Quench tower with two sections: packing and trays

    Another question in the same image: does the chimney tray permit the liquid to go down, to the tray below?
  8. zorn

    Quench tower with two sections: packing and trays

    Hello, the attached image represents a quench tower installed at the end of a Claus tail gas treatment unit. It's divided in two sections and it has two recycles. The lower recycle takes part of the bottom water (sour water) and recycles it on the 7th tray, the upper recycle takes the water...
  9. zorn

    Horizontal fixed bed reactor for Claus Tail Gas reduction

    oops, the image is: http://img517.imageshack.us/img517/3206/reactor.jpghttp://img517.imageshack.us/img517/3206/reactor.jpg
  10. zorn

    Horizontal fixed bed reactor for Claus Tail Gas reduction

    Hello, do someone know how a horizontal fixed bed reactor work?I've always seen fixed bed reactors with inlet and outlet at the top and bottom of the reactor, but the one in the picture i have attached, has inlet and outlet on the long side. Is it a sort of divided flow?What kind of flow exist...
  11. zorn

    Freely available chemical engineering articles online

    Hello Mr. Beychok, I found an example of your procedure for tray-by-tray design of sour water strippers: http://books.google.it/books?id=FgTwfTz8cp0C&pg=PT322&dq=sour+stripping&lr=#PPT327,M1 but I'm not sure about step 17, is not L1 supposed to be only water: L1= F_h2o + RD_h2o + steam...
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