durkie
Member
This process has always seemed super interesting to me: Scale Model WWII Craft Takes Flight With Fuel From the Sea Concept - U.S. Naval Research Laboratory
Basically the navy is using dissolved CO2 and carbonate in seawater as a huge carbon source and synthesizing them in to a fuel source. Which, of course, makes total sense for a navy to do. This is possibly related to the syngas/h2 process you were alluding to jhm.
If we enter an era of unlimited clean energy (and I believe we will) then I wonder if fossil fuels could still stay alive as an energy-storage medium. I guess this would primarily come down to conversion efficiency of this process versus losses related to li-ion charging/discharging, but because fossil fuels are so much more energy dense than current lithium-ion batteries, it seems like this process could be pretty grossly inefficient and still beat out batteries. Eg: all other things being equal if you were able to produce gasoline via this process at 3% efficiency and you could charge/discharge a li-ion battery at 90% efficiency, this process seems like it would still win because gasoline is 12889 Wh/kg and li-ion batteries are 240 Wh/kg.
There are of course other costs in there to consider (like maintaining fossil infrastructure, relative costs of feedstock), but fossil fuels seem like they would be hard to ignore if we have just gobs of energy that we either use or lose.
Basically the navy is using dissolved CO2 and carbonate in seawater as a huge carbon source and synthesizing them in to a fuel source. Which, of course, makes total sense for a navy to do. This is possibly related to the syngas/h2 process you were alluding to jhm.
If we enter an era of unlimited clean energy (and I believe we will) then I wonder if fossil fuels could still stay alive as an energy-storage medium. I guess this would primarily come down to conversion efficiency of this process versus losses related to li-ion charging/discharging, but because fossil fuels are so much more energy dense than current lithium-ion batteries, it seems like this process could be pretty grossly inefficient and still beat out batteries. Eg: all other things being equal if you were able to produce gasoline via this process at 3% efficiency and you could charge/discharge a li-ion battery at 90% efficiency, this process seems like it would still win because gasoline is 12889 Wh/kg and li-ion batteries are 240 Wh/kg.
There are of course other costs in there to consider (like maintaining fossil infrastructure, relative costs of feedstock), but fossil fuels seem like they would be hard to ignore if we have just gobs of energy that we either use or lose.