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  • Monday, 21 March 2016

    Theoretical Way to determine the time required for Distillation in Batch Reactor



    Hello everyone, Based on requests received asking how to determine the theoretical distillation time cycle in a batch reactor, and today i'm gonna demonstrate you a simple way to determine outta many critical ways to do that,

    Today this determination of Time required to carry out distillation is Based upon the Reactor Heat transfer area.




    So Please read
    How to Heat transfer area before proceeding to determination of distillation time

    So, initially we need some of the data regarding

    * The reactor mechanical design which includes some parameters like shell thickness, inner dia, length of reactor,

    * The batch input details like how much amount of volume we need to handle, how much amount we need to distill out,

    * The properties of the material we need to handle like density, specific heat, composition etc, and on the other end we need some properties like thermal conductivity of materials which out heat transfer area is composed off.

    Properties of Materials:
    Usually for make of Heat Transfer surface we will be usually going for SS316 Grade and for other purposes like for preparing the limpet jacketed coil and the insulation coating, we will be using SS304, and occasionally we will use GLR for Ph sensitive distillation, so below are the thermal conductivities of these materials

    Material                Thermal Conductivity,K [W/m.K]
    SS304                         10-13
    SS316                         13-17
    MSGLR                     1.2-1.5







    Latent heat calculation,
    Lh = M * Lambda

























    Latent heat load = M x Lambda = 1 x 790 x 264 = 208560 KCal.

    Total Heat load = 265440 KCal.

    Amount of heat transfer that a MSGL surface can transfer = K x A x dT = 0.029 x 9.93 x (64-25)

    i.e., 11.52 KCal








    An automated excel sheet specially designed for our readers/visitors.



    About The Author


    Hi! I am Ajay Kumar Kalva, Currently serving as the CEO of this site, a tech geek by passion, and a chemical process engineer by profession, i'm interested in writing articles regarding technology, hacking and pharma technology.
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    5 comments:

    1. We need theoretical as well as practicality..that mainly emphasis a chem engineer... jaisai

      ReplyDelete
      Replies
      1. practical means everything will remains same in both except the utilities, that means we considered ideal one means the heat required to heat that heat transfer surface is given a constant but practically if it comes true then it will be OK, and also there is chance of scalling and some oxidation over the heat transfer area that might delay the process of heat transfer, so possibly we cant determine it practically, just based on thumb we have to calculate as redcuing 10-20% of the heat transfer rate per sec and calculating the time will give us practical time cylce determination, use the simulated excel sheet for calculations.

        Delete
    2. Cannot download the excel file please help

      ReplyDelete
      Replies
      1. Link is working fine, share me ur mail id, i'll forward u

        Delete
    3. Cannot download the excel file please help

      ReplyDelete

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    Hi! I am Ajay Kumar Kalva, Currently serving as the CEO of this site, a tech geek by passion, and a chemical process engineer by profession, i'm interested in writing articles regarding technology, hacking and pharma technology.

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