Storing excess carbon dioxide as baking soda
Today, a company called Skyonic announced a novel new system, Skymine, which uses the carbon dioxide emitted from smokestacks to make baking soda. According to Skyonic CEO Joe David Jones, the system will be powered by waste heat from factories, and will produce food-grade baking soda.
http://www.cnn.com/2007/TECH/science/11/29/climate.change.soda/index.html
This sounds like a cool idea. NaOH + CO2 => NaHCO3(Baking soda) and NaOH is a mass-produced industrial chemical commonly derived from salt water using electricity.
The only thing I'm uncertain about is the energy balance. I'm not sure how much electrical and/or heat energy is needed to make NaOH. They might be able to skip a step by just bubbling the CO2 through hot salt brine, but I don't know if it would work that way.
http://www.cnn.com/2007/TECH/science/11/29/climate.change.soda/index.html
This sounds like a cool idea. NaOH + CO2 => NaHCO3(Baking soda) and NaOH is a mass-produced industrial chemical commonly derived from salt water using electricity.
The only thing I'm uncertain about is the energy balance. I'm not sure how much electrical and/or heat energy is needed to make NaOH. They might be able to skip a step by just bubbling the CO2 through hot salt brine, but I don't know if it would work that way.