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  1. Replies
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    Re: Foolproof Room Temperature (FRT) Biodiesel

    The method will only proceed at room temperature with a sufficient concentration of catalyst, as the role of the catalyst is to lower the Ea. That was implicit in the article. If you were a chemist...
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    Re: Foolproof Room Temperature (FRT) Biodiesel

    No, I haven't, but until you alter the instructions in the Dr Pepper method so that any mention of heating is removed, I'll continue to spruik my method as the only room-temperature method on the...
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    Re: Confusing problem with my biodiesel

    Few comments:

    1. mono and diglycerides are more reactive than triglycerides. So in a reaction that hadn't gone to completion you'd find some triglycerides but virtually no mono and diglycerides.
    ...
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    Re: Anyone run an X5 on bio?

    It’s a factory component that BMW had on their E53 diesel models. I believe it’s electrically powered and its role is to heat the fuel to 100deg to aid atomisation. Not sure what’s in it but I’d be...
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    Re: Anyone run an X5 on bio?

    So no-one knows huh? Gotta say that's a bit surprising given their popularity but perhaps therein lies a tale... Didn't get a reply on the infopop forum either.

    Perhaps no one knows because those...
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    Re: Foolproof Room Temperature (FRT) Biodiesel

    Please note that I am now in private correspondence with a number of people on this thread. This forum has become such an unpleasant place, due to a certain individual with the emotional maturity...
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    Re: Confusing problem with my biodiesel

    What is a soap test?
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    Anyone run an X5 on bio?

    I have the opportunity to buy one. Anyone running one on B100?

    It has an inline factory fuel heater - I'm not sure if that's a good thing or a bad thing for B100.

    Anyone got any experience...
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    Re: Foolproof Room Temperature (FRT) Biodiesel

    1. Methanol is not toxic in the quantities in which one breathes using this method. It appears you have been misled.

    2. No, to dry the methoxide solution, thus increasing the concentration of...
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    Re: Foolproof Room Temperature (FRT) Biodiesel

    Why wouldn't you do it? Because you don't have to. With this method the requirement for it has been eliminated, as the concentration of FFAs is inconsequential. Perhaps you enjoy wasting your time,...
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    Re: Foolproof Room Temperature (FRT) Biodiesel

    Yes that's probably a fair point. I've heard it said that nothing is foolproof because fools are so ingenious
    Y
  12. A layman's guide to Le Chateleir's Principle

    The foundation of my Foolproof Room Temperature biodiesel method is Le Chateleir's principle. For me, as a chemist, it's a very simple and straightforward principle, but based on some of the...
  13. Thread: Fat fail

    by Dr Mark
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    Re: Fat fail

    Yes, sorry I didn't read it properly. My method eliminates both titrations and heating. I have two degrees in Chemistry and 30y experience in chemical manufacturing. Thus I make 1000L at a time in an...
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    Re: Foolproof Room Temperature (FRT) Biodiesel

    1. Yes - the drying agent is heterogenous. So if we consider the reaction MeOH + KOH <-> MeOK + H2O, the drying agent removes the water. This pulls the equilibrium to the right, thus consuming all...
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    Re: Dewatering WVO with petrol.

    Sorry you're right - didn't notice. It's deleted
  16. Re: Formation of soap during biodiesel manufacture

    Sure thing Tony. Happy to help

    1. Yes. KOH + MeOH <-> MeOK + H2O. One molecule of potassium hydroxide reacts with one molecule of methanol to form one molecule of potassium methoxide and one...
  17. Re: Formation of soap during biodiesel manufacture

    Sorry yes - glycerol formula corrected. Well spotted

    Ethanol, methanol, and glycerol are all very weak acids, as they are all alcohols. The only one of those that I've been able to find any data...
  18. Formation of soap during biodiesel manufacture

    The formation of soap during biodiesel manufacture is a common subject of discussion on this and other biofuels forums.

    Unfortunately, however, as this site has many armchair experts (one in ...
  19. Thread: Fat fail

    by Dr Mark
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    Re: Fat fail

    One further thought on this. If you have an emulsion, a calcium salt may break it. It is of course known that calcium has a very high affinity for traditional soap, which is why synthetic detergents...
  20. Re: The chemistry of the glycerol (and soap) phase

    Correct. I didn't bother with the saponification process. I'm going to do that in a subsequent post devoted to the generation and fate of soap.

    The amount of water in clear, free-phase oil is...
  21. Re: Mazda Bravo / Ford Courier 2.5 Turbodiesel on WVO Blends

    It still has a pump. It's obviously a very different setup to the non-common rail engines, but it's still a pump. Funny thing is how quickly it failed. As soon as the fuel reached it, within about...
  22. Re: Mazda Bravo / Ford Courier 2.5 Turbodiesel on WVO Blends

    Well it depends what your blend is. Mine was SVO/Bio. If you are running ULP as part of your blend it'll probably act as a homogenous catalyst and help stuff burn off. Having said that it took some...
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    Re: Use for bio waste?

    Yes, could be. Well of course the glycerol would be highly alkaline, the same as the cement, so it'd probably blend in pretty well
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    Re: Use for bio waste?

    Sorry I don't understand the point you're making.
  25. Re: Mazda Bravo / Ford Courier 2.5 Turbodiesel on WVO Blends

    I had one of those - a 2007 model Mazda BT50. Be careful with running blends on those - I tried a 70% blend (70% WVO and 30% Bio) and it destroyed the IP.

    Up until that point I'd been running it...
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