July 24, 2013
Harvesting Electricity From The Greenhouse Gas Carbon Dioxide
A new method for producing electricity from carbon dioxide could be the start of a classic trash-to-treasure story for the troublesome greenhouse gas, scientists are reporting. Described in an article in ACS' newly launched journal Environmental Science & Technology Letters, the method uses CO2 from electric power plant and other smokestacks as the raw material for making electricity.
Bert Hamelers, Ph.D., and colleagues explain that electric power-generating stations worldwide release about 12 billion tons of CO2 annually from combustion of coal, oil and natural gas. Home and commercial heating produces another 11 billion tons. Smokestack gas from a typical coal-fired plant contains about 10 percent CO2, which not only goes to waste, but is a key contributor to global warming. Hamelers' team sought a way to change that trash into a treasure.
On the Net: