Though I'm obviously a nuclear advocate, I know that there is a place for biofuels in a mixed-energy economy, which is where the U.S. and the world at large will have to be headed, eventually. While nuclear could provide much of the power for low-weight transportation, i.e.,
electric cars, nothing other than something with a high energy output in comparison to its weight and volume would work for things like trucks, trains, and planes. That's where I think biofuels and biodiesel come in.
Previously I've noted that food waste should be recycled; food waste is an excellent feedstock for biodiesel. I also think that farm waste (i.e. animal poop) can work in the same regard. So also for human poop. So that's a lot of feedstocks for biodiesel. The other liquid biofuel of note is biomass ethanol, notably cellulosic, which might work for trucks (reserving the diesel for trains and potentially airplanes, if they can make bio-kerosene -- I'll have to look that up).
This article describes plans to make both. Let's keep the good news coming.
Energy department backs biofuel plant
Yes, there is biokerosene. I should have remembered that. It needs to be made from plant oils; can those be grown and harvested sustainably, enough for the all the planes flying in the
world?
KLM fuels Boeing 747 with biokerosene
Airbus and TAM Airlines to support jatropha-based bio-kerosene jet fuel processing plant project in Brazil
Tuesday, January 25, 2011
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