fixing the mayonnaise in Tote #1

I'm planning on trying to fix the mayonnaise in wash tote #1  
tomorrow, so we can re-react it if we have to. I'm also planning on  
cleaning out the rest of the paraffin from one of the new totes and  
using it as a temporary wash tank for the reacted fuel in vessels #1  
& #2. We'll also try and make a hundred gallon batch tomorrow, using  
the stacked approach for methoxide mixing.

Here is my plan, after talking to Seth, Amanda and consulting fuel- 
making sources. If any of it looks strange or the peanut gallery  
wants to offer suggestions before I go off and deal with this goop,  
feel free to comment:


1) if not enough lye added to batch - pH below 8 (too acidic)
     will result in unreacted vegetable oil and methanol
     titrate liquid with lye
     figure out volume of liquid in tote
     figure out quantity of lye to add to full volume
     transfer goop to reactor
     heat to 130
     add lye to re-react (not more methanol)
     let settle 8 hours


2) if too much lye added to batch - pH above 9 (too basic)
     you will get soap along with a liquid containing: oil, soap and
      biodiesel
     titrate sample of liquid with acid to get neutral
     add enough acid to neutalize the soap (bring pH to 7)
         Remove thick parts if possible (the soap)
         Take a homogenous 100ml sample of mayonnaise and test the pH
          with litmus paper.
         Add several drops of phenylphalein (pH indicator) to waste
          water. The solution should turn pink because its basic!
         In a DRY!! titration cylinder, put in 10 ml of 37% grade HCl.
          (Be careful with HCl- flammable and very stinky stuff! Check
          MSD sheet in Brew Book).
         Slowly add in HCl one drop at a time to mayonnaise while
          constantly stirring.
             Frequently test the waste water with pH litmus paper.
             Wait a full minute after each addition of HCL
         Keep adding HCl until the pink color goes away and the pH is 7.
         Amount of HCL used is per 100ml of mayonnaise.
         Multiply the amount of HCl used by the number of liters of
          waste water needed to be neutrilized.
         You might want to shave off .2-.5 ml of HCl per liter so that
          you avoid putting in too much acid. You can always add HCl in
          the end if the waste water is still too high.
         Test the waste water after treatment to make sure pH 7 was
          achieved.

--------------------------------------------------------------
Zac Imboden
[email protected]
1534 SE 35th Place
Portland, OR
97214
971-563-2477

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