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Strange temperature rise

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  • Strange temperature rise

    When I made my last batch of bio (250L), I did the titration and the 80/20 thing with 50L of methoxide. I agitated with 80% (40L) of methoxide for 5-6 hours, settled overnight, and drained off the glycerol, several times, until bio came out. Then started the pump, put in the 20% remaining methoxide. I forgot to switch off the pump and came back 12 hours later, and the temp in the tank was 60C. After it cooled, it washed out looking a little like mayonnaise, but washed cleanly after settling out. However, there's sediment on the bottom of test bottles, and it's settling out quite slowly. What happened there?

  • #2
    Sounds like you homogonised the byproduct back into the biodiesel.
    Life is a journey, with problems to solve, lessons to learn, but most of all, experiences to enjoy.

    Current Vehicles in stable:
    '06 Musso Sports 4X4 Manual Crew Cab tray back.
    '04 Rexton 4X4 Automatic SUV
    '2014 Toyota Prius (on ULP) - Wife's car

    Previous Vehicles:
    '90 Mazda Capella. (2000 - 2003) My first Fatmobile. Converted to fun on veggie oil with a 2 tank setup.
    '80 Mercedes 300D. 2 tank conversion [Sold]
    '84 Mercedes 300D. 1 tank, no conversion. Replaced engine with rebuilt OM617A turbodiesel engine. Finally had good power. Engine donor for W123 coupe. (body parted out and carcass sold for scrap.)
    '85 Mercedes Benz W123 300CD Turbodiesel
    '99 Mercedes W202 C250 Turbodiesel (my darling Wife's car)[sold]
    '98 Mercedes W202 C250 Turbodiesel (my car)[sold]
    '06 Musso Sports Crew Cab well body. [Head gasket blew!]
    '04 Rexton SUV 2.9L Turbodiesel same as Musso - Our Family car.
    '06 Musso sports Crew Cab Trayback - My hack (no air cond, no heater).

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