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Recent content by franky

  1. franky

    powder

    More information about the properties of your material, the shape of the equipment and where the segregation occur would help to provide solutions. Could water, air or inert gas be used to improuve discharge efficency. Is the discharge located at the bottom of the equipment? What is the...
  2. franky

    Reaction chemistry between NaHS and chlorine (Cl2)

    There is a possible reaction from NaHS and NaOH in water wich is: NaHS + NaOH + 2H2O = Na2SO3 + 2H2 In that case hydrogen is form and your vessel should be able to evacuate the non-condensable gas. From that reaction Na2SO3 could be form and your second pricipale reaction take place (Na2SO3...
  3. franky

    Process Control Software

    There is a control program call simulink that you could use with matlab there is a student version of the software probably available trough your university. At the university we used that program. You will be able to find literature about Simulink with Matlab trough the web and there is a book...
  4. franky

    Steps for Successful Process Simulation

    Well, this is depending of your software. When I built a simulation with Cadsim with coach ver 1.1 I have to built my model step by step. The initial value has to be good, otherwise it will take more time to converge and arrive to the final value. On the other hand when we use Massbal...
  5. franky

    Solvent Recovery

    I will recommand that you determined different options that you may used to separated the ethyl acetate from your solvent first, then make some test that will probably recommended an expert. I will recommended that you go on this page: http://es.epa.gov/studies/hml10006.html Then you may...
  6. franky

    PIPING DESIGN VS OPERATION AND PROJECT COST

    What is your preference, when you make a project and you have to install manual valve and check valve at a pump discharge. Will you prefer to install it before you increase to the line size or after? Before means to increase your operation cost due to increase of pressure drop and premature...
  7. franky

    Maximum velocity of fluid in pipe

    I will like to find general guide lines regarding the maximum velocity in pipe regarding the line size and the type of fluid or water. Tanks for any comments !
  8. franky

    Volume of Steam Produced

    My first question will be, what is your water condition. For each degree you will need 1 cal or 4.18 J to increase of 1 degree C/1 g of water (at atmospheric pressure). The volume of steam will depend of the final temprature and pressure of your system: V = nRT/P more pressure less volume and...
  9. franky

    Downloadable chemical process/petroleum software

    Some interesting adress:www.software.com/products www.deb.uminho.pt/fontes/chem_eng/software.htm Check also for batchpro designer this is a software that you will be able to download. Do a reserch on that, if you don't find anything look for it in chemical engineering.

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