- Jun 7, 2020
I don't think I said blender pumps don't exist, I said I don't know where you find them. I'm unaware of them in the KC metro area, but, I don't ever buy mid-grade, so maybe it's under my radar. When I started on the pipeline 30+ years ago, we did blend tanks full of mid-grade ( half premium, half regular, circulate, sample, test and release), but improvements in rack equipment allowed us to go to sequential blending at the loading rack decades ago. There are proportional blending setups too, but we won't get that upgrade before I retire...So, we have tanks of regular, tanks of premium, tanks of ethanol, and they can be loaded out in a variety of blend recipes as provided by the inventory owner (supplier), and chosen by the consignee (gas station). Any mixing of products in the pipe is either cut to a mix tank, or cut to protect the higher grade. So, when we have premium followed by regular in the line, we cut out of the premium tank at the first break in gravity. On regular followed by premium, we cut out of the regular tank after the gravity has stabilized at the premium gravity. A little downgrade of premium barrels, but a little octane boost to the regular stock...I'm unaware of any pipeline where large amounts of "mix" is tanked separately and marketed as a legal fuel stock. If you're generating that much mix, you must have a very large piping segment, or very poor operators.They are very commonly used for ethanol. I already provided a link.
Where do people get the idea that because they haven't seen something it doesn't exist?