Hello All,
      I would like to use the Free Fatty Acids (FFAs) split from the glycerine cocktail, along with BD, to heat my house + provide domestic hot water.
     My burner runs nicely on 100% BD, but when I attempted to add some of the FFAs (5 - 7% by volume), I got coking on the electrodes in the burner. I suspect that there may have been some glycerine in the FFA.
     I have about 50 gallons of FFA. I also have two questions:
 
   1. Has anyone mixed FFAs with their heating fuel?
 
   2. I'm thinking about separating glycerine contamination from the FFA by washing it with water. The glycerine seems to dissolve nicely while the FFAs float.
       Washed/dried maybe no coking? Anyone tried this?
   As always, comments/suggestions appreciated.
                                                  Tom
 
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