Note, this is not a commentary on greenhouse etc., just some technologies that I found interesting, and with oil prices high could help a little or a lot to set a top end cap on them.
http://www.netl.doe.gov/publications/proceedings/01/carbon_seq/7b1.pdf
The point that I find interesting, and it's repeated elsewhere is that utilising wind power to collect atmospheric CO2 is multiple times more efficient than using the wind power to make electricity...maybe $15/tonne collected.
Quote:
Results of our dimensional analysis suggest that the collection of CO2 directly from air is
feasible. Collecting CO2 from air is far more efficient than collecting wind energy.
Once you've collected it.
http://www.lockergnome.com/news/2009/05/04/breakthrough-co2-to-fuel-technology-featured/
Quote:
Carbon Sciences has devised a way to unravel CO2 using a “biocatalyst that will combine the hydrogen in water with the carbon dioxide, without the usual large expenditure of energy required to break the chemical bond between water’s hydrogen and oxygen.”
The resulting savings provides the most efficient and “direct path” to fuel from CO2. Carbon Sciences estimates that by 2030, using less than half of the CO2 emissions from coal usage alone, it can produce enough fuel to provide 30% of the global liquid fuel demand.
Turn it back into hydrocarbons...
Mine the atmosphere, and have the combustion byproducts of the powerstations delivered free to the fuel from air farms.
http://www.netl.doe.gov/publications/proceedings/01/carbon_seq/7b1.pdf
The point that I find interesting, and it's repeated elsewhere is that utilising wind power to collect atmospheric CO2 is multiple times more efficient than using the wind power to make electricity...maybe $15/tonne collected.
Quote:
Results of our dimensional analysis suggest that the collection of CO2 directly from air is
feasible. Collecting CO2 from air is far more efficient than collecting wind energy.
Once you've collected it.
http://www.lockergnome.com/news/2009/05/04/breakthrough-co2-to-fuel-technology-featured/
Quote:
Carbon Sciences has devised a way to unravel CO2 using a “biocatalyst that will combine the hydrogen in water with the carbon dioxide, without the usual large expenditure of energy required to break the chemical bond between water’s hydrogen and oxygen.”
The resulting savings provides the most efficient and “direct path” to fuel from CO2. Carbon Sciences estimates that by 2030, using less than half of the CO2 emissions from coal usage alone, it can produce enough fuel to provide 30% of the global liquid fuel demand.
Turn it back into hydrocarbons...
Mine the atmosphere, and have the combustion byproducts of the powerstations delivered free to the fuel from air farms.