geordi wrote:
As for the fuel transportation discussion, I find it hard to believe that the suppliers would be mixing 20-30 THOUSAND gallons of one product with another, when they have a perfectly good way of separating the batches already - Anyone watch James Bond? From the opening of The Living Daylights, they show exactly what is used. Its a scouring plug. Put one in between each batch, and you have a handful (at most) of product getting mixed. Not a full railcar. That much waste is beyond comprehension.
I know that in Florida, the aviation fuels are pumped in by pipe from the terminal, because some genius managed to drill into the pipe feeding the Miami Airport from the terminal in Ft Lauderdale a few years back, and started stealing the fuel. For what, I have no clue. But they caught him b/c of the drop in pressure. I can't believe there wasn't an explosion.
"Scouring plug" might be the official term, I hadn't thought of or seen that. They are often referred to as "pigs." Not having seen this in operation, I've often wonder just how they are able to get the various products to where they need to be without massive contamination. Back when I worked for Ashland, they owned a pretty big pipeline network that Marathon would now have providing it hasn't been sold. I think it was generally to deliver crude from the Gulf up to the refinery in KY. I do think they have pipelines going from their site in KY that went to Canton, OH where one of their other refineries was located.
The regulation may state that aviation fuel has to be delivered via dedicated pipeline or truck. That would seem to make sense. One of the big problems with E85 for those other engines is that it picks up water too easily and can't be brought in by pipeline. If they were to perfect biobutanol someday, it doesn't pick up water as easily, so pipeline would be an option for that.