• aramis87@fedia.io
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      1 day ago

      Fun point: many farmers are switching from corn and wheat this year to growing soybeans, because soybeans need less fertilizer. Now you can get biofuel from soybeans, but you need to crush and process them first, and it’s more expensive and time consuming than corn-based ethanol.

      • partial_accumen@lemmy.world
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        12 hours ago

        Now you can get biofuel from soybeans, but you need to crush and process them first, and it’s more expensive and time consuming than corn-based ethanol.

        For clarity, if you’re growing soybeans for biofuel most efficiently, you’d use it as biodiesel. You get much more energy out of it that way.

        Yes, you could instead take those soybeans crush, process, and ferment them into ethanol, but you get far less energy out only yielding about 25% more energy than it takes to grow the soybeans to begin with, far lower than using soybeans as diesel fuel.

        • megopie@lemmy.blahaj.zone
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          8 hours ago

          if you crush out the oil, the biodiesel, you’re still left with a significant mass of protein and carbs, the carbs are what you would want for making ethanol.

          The protein? Uh, not really useful for fuel. like maybe there is some specialized microorganism that could metabolize that to make ethanol or something? Probably it would just get tossed after the starches were fermented out of the solids. Normally it’d just get fed to animals, but the reason we’re even talking about alternative uses for soy is because the foreign animal feed market has collapsed because of an idiot old mans atavistic urges.

          • SlurpingPus@lemmy.world
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            5 hours ago

            I was just wondering, wasn’t the US exporting the soybeans to China until China said to shove it recently after another one of the tariff tantrums (and switched to buying from Argentina iirc).

      • Janx@piefed.social
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        14 hours ago

        So… we can get transportation power from soybeans, which is worse than from corn, which is worse than from hydrogen, which is worse than from batteries. All I getting that right?

        • megopie@lemmy.blahaj.zone
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          8 hours ago

          Yah, see, thing is, multigenerational wealth cosplaying as farmers need to grow something that at least breaks even on their financalized property assets, otherwise those assets wouldn’t be “farm land” and would get taxed differently.