Carbon Revolution... turn CO2 into Ethanol [+ other fuels] using fermentation...

[AlbertaFarmer5]

Here is a reddit thread on this general topic. 2 years old, but the laws of thermodynamics haven't changed much since then.
Many many explanations throughout the thread as to why you cannot get more energy out than you put in during this process
Even if they are using fermentation, the bacteria still need an energy source.

https://www.reddit.com/r/science/comments/i4p4fd/turning_carbon_dioxide_into_liquid_fuel/

[TOM4CWB]

Here is a reddit thread on this general topic. 2 years old, but the laws of thermodynamics haven't changed much since then.
Many many explanations throughout the thread as to why you cannot get more energy out than you put in during this process
Even if they are using fermentation, the bacteria still need an energy source.
https://www.reddit.com/r/science/com...o_liquid_fuel/

Water... H2O... is an integral part of fermentation... has all the hydrogen needed to combine with the Co2 to make the renewable hydrocarbon... it isn't from the fossil fuels[under ground sequestered hydrocarbons]... it is instead recycled from the Co2 air in our atmosphere instead... which is the point isn't it? Net Zero Carbon...

Fossil fuels got their Co2 from the atmosphere in the first place... the balance of Co2[in the air] is at issue.

[AlbertaFarmer5]

Water... H2O... is an integral part of fermentation... has all the hydrogen needed to combine with the Co2 to make the renewable hydrocarbon... it isn't from the fossil fuels[under ground sequestered hydrocarbons]... it is instead recycled from the Co2 air in our atmosphere instead... which is the point isn't it? Net Zero Carbon...

Fossil fuels got their Co2 from the atmosphere in the first place... the balance of Co2[in the air] is at issue.

Yes, but it takes energy to liberate the C from the O's, and the 2 H's from the O. to reunite them into a a hydrocarbon, which is in a much higher energy state. Photosynthetic organisms do it using sunlight for the energy source. The schematics they show indicate it is in a fermentation vessel, possibly using heat and pressure. So probably not sunlight. Where does the heat and pressure come from, how much energy is required for that? Or does it require 2500 acres because it is using sunlight?
Even bacteria won't work for free, they need fed.

Then when we combust those hydrocarbons, we only capture 30% of the energy. So for the round trip to be energy neutral, this process needs to be way beyond 100% efficient.

[WiltonRanch]

Rather ironic the AGW crowd lives by the maxim the science is settled and no dissenting views have any relevance. Yet science and physics proves out that a lot of these alternative energy sources are not the free energy they’re claimed to be.

[TOM4CWB]

Rather ironic the AGW crowd lives by the maxim the science is settled and no dissenting views have any relevance. Yet science and physics proves out that a lot of these alternative energy sources are not the free energy they’re claimed to be.

As if electrical power generation, transmission, charging batteries, electrical motor drives… are 100 % efficient…

Just like’heat pumps’ are ‘free’ energy for heating buildings… lowering the earth core temperature will be the next catastrophe the calamity crew dream up… to promote humanity depopulation.

[shtferbrains]

Rather ironic the AGW crowd lives by the maxim the science is settled and no dissenting views have any relevance. Yet science and physics proves out that a lot of these alternative energy sources are not the free energy they’re claimed to be.

Non will be adopted where they don't have government mandates to force their use.

ROTW will pick the best.
That will be what we have all the infastructure and equipment for now. Wonderful products made from abundant fossil fuels.

[TOM4CWB]

Synthetic jet fuel made from co2 and fermentation , as well as plastics... will soon be common.

https://www.greencarcongress.com/2022/04/20220408-cemvita.html

"United and Oxy collaborate with syn-bio company Cemvita to produce SAF from CO2 using microbes
08 April 2022

United Airlines Ventures (UAV) and Oxy Low Carbon Ventures (OLCV) announced a collaboration with Houston-based biotech firm Cemvita Factory to commercialize the production of sustainable aviation fuel (SAF) intended to be developed through a new process using carbon dioxide and synthetic microbes. UAV also announced an equity investment in Cemvita Factory. OLCV, a subsidiary of Occidental (Oxy), is a founding investor in Cemvita Factory.

Cemvita Factory uses synthetic biology to produce microbes that turn carbon dioxide into chemicals and alternative fuels, including sustainable aviation fuel."

[AlbertaFarmer5]

But where do the microbes get their energy from?