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Thread: The Imsides method

  1. #151
    Join Date
    Dec 2016
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    Re: Reduced oil temperature in reactor ?

    I did a test a while ago with magnesol + WVO

    400mls of lightly used rapeseed oil that titrated at 1.0 with KOH. Added 3 teaspoons full of magnesol, heated to 50degs, stirred several times, left to cool and settle. Re-titrated with a result of 0.3

    A residue layer appeared in the beaker not too dissimilar to glycerol.

  2. #152
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    Re: Reduced oil temperature in reactor ?

    Hi Wesley,
    Thank you for the additional information.

    You mixed 11g KOH into 330ml methanol and dried it with calcium oxide.
    You did not titrate the new corn oil but you did mix magnasol in the new corn oil. Because you did not perform a before or after titration on the oil you have no idea what, if anything, the magnesol did.
    My experience with titrating new veg oil is that it reaches titration end point with 1 or 2 drops of titrating fluid- virtually a 0 titration.
    You then used 100ml of the dried methoxide to react 380ml of new Corn Oil..
    Doing the calculations, that shows that your chemical usage was about 8.7g KOH per litre of veg oil and about 260ml methanol per litre of veg oil.

    This is slightly more KOH than most people would use to perform a reaction on new Veg oil and substantially more methanol than most people would use to perform a reaction.
    You performed the reaction at room temperature and eventually the biodiesel produced passed the warnqvest test.

    Considering the quantity of KOH and Methanol used in the reaction, I would have been surprised if the biodiesel produced had not passes the Warnqvest test without drying the methoxide.

    Did you have a specific reason for making this small batch of biodiesel?

  3. #153
    Join Date
    Nov 2010
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    Fort Worth, Texas, USA
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    280

    Re: Reduced oil temperature in reactor ?

    I asked Dr Mark if his Imisides Method (using cement) passed the 10/90 Warnquest miscibility test. I got no answer, so I tested some cold method biodiesel I made using calcium oxide. I could not find that lab note book. It may have walked off or something. Loosing a lab notebook is a problem since I usually can't rely on my memory from September of 2017. So I did it again with writing down what I did in another lab notebook. Generally in synthetic fuel production it's important to use less energy to make it than is harvested from it when it burns. So developing a practical, working room temperature synthesis pursues a goal of making energy inexpensive synthetic fuel (biodiesel). That's part of why I did it. Dr Mark didn't answer the question, so I did. My take on this Imisides Method does pass the Warnquest miscibility test and has little soap in it. I couldn't detect any soap using the Bromophenol Blue pH indicator test.

  4. #154
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    Re: Reduced oil temperature in reactor ?

    Hi Wesley,

    Quote Originally Posted by WesleyB View Post
    So developing a practical, working room temperature synthesis pursues a goal of making energy inexpensive synthetic fuel (biodiesel)
    This is the part I do not understand.
    It has been repeatedly shown to you that you can make biodiesel at room temperature using the standard method. No CaO or any other methoxide drying procedure is required. People have been doing it for years!!
    For some reason both you and Mark continually ignore this fact and tell everyone you are on this noble quest in search of a magical procedure that allows you to make biodiesel at room temperature.
    The procedure already exists! It has existed for years!!!
    Just use your normal method of making biodiesel and do not heat the oil. As long as the oil remains liquid you can mke biodiesel that passes the Warnqvest test.



    That's part of why I did it. Dr Mark didn't answer the question, so I did. My take on this Imisides Method does pass the Warnquest miscibility test and has little soap in it. I couldn't detect any soap using the Bromophenol Blue pH indicator test.
    You did not use the Imisides method. You did not even come close. Go read it again.
    1. The instructions for the imisides method say to dry the methoxide with cement powder. You used CaO to dry the methoxide. Cement powder and CaO are not the same thing.
    2. The instructions say to use use 15g KOH per litre of Veg Oil. You used 8.7g KOH per litre of Veg Oil
    3. Mark has just increased the methanol from 15% to 20%. You used 26%
    4. There is no mention of the magnesol treatment of the Veg oil that you used.
    About the only similarity between the imisides method and what you did was to not heat the veg oil, everything else was different.

    And at the end of the day, because you were reacting new Veg oil with such a large excess of chemicals, all you needed to do was mix the Methoxide with the room temperature Veg Oil and you would have easily passed the Warnqvest test, No methoxide drying required.

    Last edited by tillyfromparadise; 22nd June 2018 at 03:49 PM.

  5. #155
    Join Date
    Nov 2010
    Location
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    Re: Reduced oil temperature in reactor ?

    Well Tilly you're right. I reacted 380 milliliters Mazola new corn oil , titration number 0.13 with 100 milliliters methanol with 3.4 grams 85% potassium hydroxide dissolved in it, at a room temperature of twenty five degrees celcius, with stirrirng over a period of 8 hours to get a glycerine layer. Removed the glycerine layer. 8 hours later washed 5 times with distilled water. Dried the biodiesel over night with 30 grams anhydrous sodium sulfate. Heated to 60 degrees then added 16 grams magnesium sulfate with stirring, left to settle over night. Decanted the purified biodiesel off the magnesium sulfate and did a Warnquest 10/90 test, there was no fallout. So, biodiesel transesterification reaction can be done without heating using the regular method.
    Last edited by WesleyB; 2nd July 2018 at 12:07 AM.

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