Carbon dioxide is a non-flammable gas. It is the product of combustion itself. So even if you recover it, it cant become fuel with the addition of something else. It can only be separated to use as an oxidizer.
Where do these so called scientists of today come from that think they can take a penny and make a dollar from it without putting in the remaining 99 cents?
“think they can take a penny and make a dollar from it without putting in the remaining 99 cents?”
The last 99 cents comes from the taxpayers
Assume they aren’t touting carbon monoxide as the fuel to be produced. Then they didn’t mention that essential source of hydrogen, which chemically combined with carbon adds up to the hydrocarbon materials known as fuel. Guess where we typically get hydrogen from—no, it’s not water. Hint>NG.
They will need an inexpensive source of hydrogen to make this a real proposition. They also need a lot of inexpensive energy to drive a process to synthesize fuels from captured CO2. Overall just less expensive to chemically sequester carbon as carbonate rock as catalyzed by reaction with basaltic rock formations lying underground. Use the fuels already available. Two separate issues.