Problem in Transesterification process of Neem oil:

Hi friends. I am doing a project on "Performance test on single cylinder diesel engine fuelled with Neem biodiesel"
I had started the process of extraction of biodiesel from Neem oil using transestrification.
I followed the procedure as below:
1) Heated Neem oil to 110 degree celcius to remove any water content.
2) Allow it to cool and when it reach 45-55 degree , Add a solution of (Methanol+NaOH pellets) and transfer the solution to a bottle.
3) Allow it to settle for 24 hrs
4) But I got a resultant product where all solution turned like a soap bar.
What have I made wrong in this?
2014-03-03 18.05.15

@#-Link-Snipped-#

Replies

  • Ramani Aswath
    Ramani Aswath
    That is how soaps are made!
    My feeling is that too much Sodium Hydroxide was used. This converts all the fat to the sodium salt, which is soap.

    Study this;
    #-Link-Snipped-#
  • zaveri
    zaveri
    Dude you needn't take the trouble to do the esterification process yourself.

    I did a similar project during my final semester, with the exception that we used pongamia biodiesel.

    we did not do the esterification process ourselves, but we purchased the biodiesel directly from the factory, where it was being esterified, and then continued the rest of the project ourselves.
  • Sarathkumar Chandrasekaran
    Sarathkumar Chandrasekaran
    But where can we buy biodiesel?
    I had submitted topic as biodiesel from neem oil.
  • zaveri
    zaveri
    I purchased our biodiesel from bannari amman near sathyamangalam. this source we found after a tiring search on google.com

    you better do the same and find out where they are making the neem biodiesel.
  • Sarathkumar Chandrasekaran
    Sarathkumar Chandrasekaran
    zaveri
    I purchased our biodiesel from bannari amman near sathyamangalam. this source we found after a tiring search on google.com

    you better do the same and find out where they are making the neem biodiesel.
    Thanks for info.Do you mean Bannari amman institute college or any other firm?
  • Sarathkumar Chandrasekaran
    Sarathkumar Chandrasekaran
    zaveri
    I purchased our biodiesel from bannari amman near sathyamangalam. this source we found after a tiring search on google.com

    you better do the same and find out where they are making the neem biodiesel.
    Do you mean " M/s. Bannariamman Sugars "
  • zaveri
    zaveri
    SarathKumar Chandrasekaran
    Do you mean " M/s. Bannariamman Sugars "

    Yes that is exactly the one !
  • Sarathkumar Chandrasekaran
    Sarathkumar Chandrasekaran
    zaveri
    Yes that is exactly the one !
    Thanks a lot bro for the help.Will updatw after the progresd of my project.

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