It's easy to capture at places that produce lots of CO2. Say fossil fuel electricity plants, and apparently also the production of Cement.
Long term, these sources will hopefully dissapear. But short term, concentrated sources of CO2 are sadly still quite abundant.
It would be cool if, long term, the CO2 released by burning this in home furnaces for heating can mostly be re-captured.
>It's easy to capture at places that produce lots of CO2.
Not easy enough apparently, the US gov started subsidizing/taxcutting this because there was demand for CO2 in enhanced oil recovery but the price was too high.
This doesn't work. You need energy to convert CO2 back into propane. The CO2 is coming from fossil fuels, which you're still ultimately going to burn again to get energy back...putting the CO2 back into the atmosphere.
Only now you've thrown away some of the energy in losses doing the CO2 to propane conversion.
This would lower the efficiency of a fossil fuel powerplant, and this increase the CO2 emitted overall.
I meant to do the CO2 capture at gas furnaces in homes. Because the electric power available for heating is ofte limited, but might still be sufficient to gather CO2 from the exhaust of the furnace.
It'll cost energy, but it is a cheap source of CO2 for this electrolysis.
It would be cool if, long term, the CO2 released by burning this in home furnaces for heating can mostly be re-captured.