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  1. Replies
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    Re: Glycerol composition.

    Hi Tilly and Merry Christmas to you.


    Even at only 1% free CaO, there was a difference in the tests I ran previously. Perhaps I should do it again using CaO instead of the cement as the "drying...
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    Re: Glycerol composition.

    I have previously used the IMB method of caustic stripping to reduce the titration of nasty oil and it worked well. The only criticism I had of it was that glycerol is useful stuff, and can be used...
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    Re: Reduced oil temperature in reactor ?

    Hi Tilly,


    Firstly, you were correct in that the new oil I tested was rape-seed oil.


    I use both sodium and potassium for processing. I buy the sodium from our local hardware chain (called...
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    Re: Reduced oil temperature in reactor ?

    My bad. Apologies. I've now edited the post to read 130 litres.

    David
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    Re: Reduced oil temperature in reactor ?

    Hello Tilly


    Leaving this test aside, if your assertion is correct that drying the methoxide has little benefit to the reaction, how come commercial producers and a fair few home producers in the...
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    Re: Reduced oil temperature in reactor ?

    Hi Tilly


    You have asked me what I concluded from the test results.


    Both tests involved reacting new veg oil with a pretty massive overdose of KOH but an amount of methanol which almost...
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    Re: Reduced oil temperature in reactor ?

    I calculated the mix for the methoxide as follows:


    Dr.Mark's bulk formula calls for 870lites of wvo to be reacted with a methoxide comprising 130 litres of methanol plus 13kgs of KOH.


    I...
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    Re: Reduced oil temperature in reactor ?

    Hi Tilly,

    i will reply regarding my methoxide mixing a bit later today. I'm just going out to collect some oil.

    in fairness, I think if you look at my post #115 on this thread you will see that...
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    Re: The Imsides method

    I have posted my results but I have had a message saying that the moderator must approve my post before it's visible
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    Re: The Imsides method

    Here are the results of the testing.


    THE TEST
    1 litre of new rapeseed oil was reacted with 150ml of a koh methoxide made to the Dr. Mark formula detailed on his website.
    1 litre of new...
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    Re: The Imsides method

    Hi Tilly,


    I live in Leeds. I am certainly not the same person as Dave Smith, who lives in a different town to me. Dave is a friend so mine and he taught me how to make biodiesel.


    Regarding...
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    Re: The Imsides method

    I can report that further testing is now underway in the UK of the Dr. Mark method.


    Dave (Smithy) suggested to me that a good basic test would be to make up batch of methoxide in accordance...
  13. Re: My Ambient/ Room temperature Biodiesel Production

    On reflection, that was an unfair question since the only way to know is to undertake some more testing. This I will do over the next few days.

    In order to conduct a fair test, I will use wvo from...
  14. Re: My Ambient/ Room temperature Biodiesel Production

    Hello Tilly,

    This is is probably an impossible question to answer without testing, but do you think that if the methanol quantity were upped to say, 20%, given the huge overdose of KOH, would Dr....
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