Hydroburn PSR Testimonial, Northwest Fuel Systems Spokane LLC in Coeur d'Alene, ID

This is a short version of the successful phase separation reversal of a 10,000 gallon above-ground storage tank with about 600 gallons of phase-separated bottom layer.

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[CimTek2009]

Octane checks have come back from independent labs showing no change in octane between the pre-phase separation and reversed phase separation. Ethanol content is unaltered. If it was E10 before, it is restored to E10 afterwards. The weight percent of oxygen in the fuel remains essentially the same; regardless if you are talking about available oxygen or unavailable oxygen.

[CimTek2009]

The two remaining inches were after the first cycling of the fuel. After additional cycling the remaining 2 was taken care of.

[oterj0]

Okay, thanks for the explanation there. My second comment was that if the phase separation was completely reversed, does this additive add significantly to the wt% oxygen? 110 gals into 10,000 gals is just over 1 vol%. This may or may not add significantly to oxygen content. Again, fuel could be perfectly useable, but it may have a specification issue. I'd suggest checking oxygenates and maybe phase separation temperature on the fuel before and after remediation.

[oterj0]

Couple of comments. If the tank went from 10" to 2" of phase separated bottoms, the phase separation wasn't completely reversed, meaning ethanol that used to be in the fuel is still in the water layer. Whether or not the upper fuel portion is useable product does not necessarily mean it meets regulatory specs. Having lost some ethanol, the product could be 1) low in octane, or 2) potentially be off spec for RVP.