NRG Energy tests CO2 recycling process

13 April 2007 -- NRG Energy, Inc. and GreenFuel Technologies Corporation ae beginning to field test GreenFuel's emissions-to-biofuels technology at NRG's Big Cajun II - a 1,489 MW coal-fueled power plant in New Roads, LA.

The process uses naturally occurring algae to capture and reduce flue gas carbon dioxide (CO2) emissions into the atmosphere. The energy-rich algae are harvested daily and can be converted into a range of biofuels or high-value animal feed supplements. Power generators can choose to dry and store the carbon-rich algae biomass for use as renewable fuel for the power plant or convert it to transportation fuels such as biodiesel or ethanol. The process requires no re-engineering of the power plant.

In the initial field testing, which will last approximately four months, algae species will be selected to optimize biofuel production based on the site's flue gas composition, local climate and geography toward an ultimate goal of construction of a commercial-scale facility.

A full scale commercial deployment could recycle enough CO2 to yield as much as 8,000 gallons of biodiesel per acre annually under optimum conditions.

Sponsored by FLSmidth

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