B U L K PL A N T S Temperature, temperature, temperature. Temperature is one of
your major influences and not just the temperature of the product, but the temperature of the product you're blending it in with,
whether it's diesel fuel or heating oil. You have to follow some golden rules like never have a greater temperature differential than 20° F.
FON: When considering biodiesel of Bioheat™ what are the major concerns a plant operator has to keep in mind? Savage: Temperature, temperature, temperature. Temperature is one of your major influences and not just the temperature of the product, but the tem- perature of the product you're blending it with whether it's diesel fuel or heating oil. You have to follow some golden rules like never have a greater temperature dif- ferential than 20° F. We had a driver say, "Wow, you should
see this thing floating in my compart- ment." And what it was, was the B100 going into a cold compartment in the wintertime, losing its temperature and pour point and becoming a gooey mass and then when he filled it with the No. 2 oil, it floated up. That's one of the things you run into. Golden rules. I don't want to see any greater temperature differential in 20° F. You put hot B100 in your diesel fuel or No. 2 oil and the bacteria will love you. Two years ago we had an issue where a major supplier was loading product and blending B100 with No. 2 home heating oil at the rack and the temperature dif- ferential was between 40° F and 60° F and within two weeks over 80 accounts ran into out-of-service problems because of rapid growth of bacteria. And I do not want to see sequential
blending. With sequential blending the accuracy of your blend is going to be off and the temperature differential will be that much greater, but people still do it. They say, "I don't have any problems." How do you know you don't have any problems?
FON: What are some of the specifics for keeping that temperature differential in the 20°F range?
www.fueloilnews.com | FUEL OIL NEWS | APRIL 2012 31
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