Pouted but ....
Ah these journalists ... the 2nd paragraph makes immediately ... less dream ...
Researchers have mixed caustic soda with carbon dioxide, and got sodium carbonate from it. They then subjected electrolysis to this sodium carbonate, which generated pure carbon dioxide. To produce hydrogen, they electrolyzed the water obtained from the water vapor recovered using a dehumidifier. By mixing these two products, they obtained methanol which they passed through a catalyst to produce fuel.
Already, I believe that we can make a gas permeation to extract CO2 from the air ... then I do not believe that caustic soda is in the air.
Obviously there is no overall energy efficiency figure for the process ... I think it is not very high ...
I think there is much more to be expected
micro algae :
https://www.econologie.com/forums/microalgue ... 10514.html (among others) because they already make oil at $ 40 a barrel equivalent ...
So this sentence amuses me a little:
You are in a market where the only prospect is the increase in the price of fossil oil. At a certain point, the curves will cross and our fuel will become the cheapest
But it is on that the journalists like this kind of information ...