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High acid number on biodiesel
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Just tested my Biodiesel and it's got an high acid number around 2.0 ASTM limits are 0.5

I think the extended washing with a bubbler drove up the acid number on the finished product. Is this acid number of concern if I blend with petro diesel at say 25/75 bio/petro?
 
Location: Kamloops | Registered: June 16, 2012Reply With QuoteReport This Post
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I just retested it. I think my stock solution was out the first time. This time I got 0.13 for my biodiesel. I also tested a 25% blend and got 0.04 and for the heck of it I also tested some pure diesel and got 0.01 acid number.
 
Location: Kamloops | Registered: June 16, 2012Reply With QuoteReport This Post
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