Oak ridge lab turn CO2 into ethanol

[timojin]

Way to Turn Car Emissions Into Alcohol
https://www.ornl.gov/news/nano-spike-catalysts-convert-carbon-dioxide-directly-ethanol


Interesting, I have not noticed were they get the hydrogen for the conversion

 

[Walter L. Wagner]

Way to Turn Car Emissions Into Alcohol
https://www.ornl.gov/news/nano-spike-catalysts-convert-carbon-dioxide-directly-ethanol


Interesting, I have not noticed were they get the hydrogen for the conversion

expensive way to make hooch. easier to take grain-mash or grape-juice and let it sit around.

the ORNL process described above requires an energy input.

 

[exchemist]

Way to Turn Car Emissions Into Alcohol
https://www.ornl.gov/news/nano-spike-catalysts-convert-carbon-dioxide-directly-ethanol


Interesting, I have not noticed were they get the hydrogen for the conversion

Agree , rather annoying they don't mention the water that must be required. However they do say they use CO2 dissolved in water so by implication that is the source of hydrogen. Presumably also, they generate free oxygen, but this is not mentioned either!

 

[timojin]

Agree , rather annoying they don't mention the water that must be required. However they do say they use CO2 dissolved in water so by implication that is the source of hydrogen. Presumably also, they generate free oxygen, but this is not mentioned either!

2CO2 + 3 H2O + Energy ------- HH3-CH2-OH + 3O2 that is what you are saying
I wonder if they used carbonic acid on some Copper catalyst

 

[Sarkus]

They mention possible use as energy storage for when there's excess electricity supply, but I'm guessing the efficiency of the conversion process to ethanol and back would be pretty low indeed.