NRG Energy / Powerspan 125MW CCS Demonstration Plant in Texas
US power station operator NRG Energy and technology company Powerspan have announced plans to develop a “commercial scale” carbon capture and sequestration facility for a coal power station.It will be attached to a power plant in WA Parish, Sugar Land, Texas, which NRG says is one of the largest and best baseload coal facilities in the country.
It will use Powerspan’s ECO2 technology, which captures carbon dioxide post combustion into an ammonia stream. Powergen says that the system has simpler capital equipment design and lower energy consumption than other carbon capture technologies.
NRG says that carbon capture projects on coal fuelled power plants have only been conducted to date at a scale of 1 to 5 megawatts; this one will capture carbon dioxide from flue gas equivalent to what a 125 megawatt power plant would emit.
It will rank “among the world’s largest CCS projects and potentially the first to achieve commercial scale capture and sequestration from an existing coal-fueled power plant,” NRG says.The carbon dioxide is expected to be used to enhanced oilfield recovery (EOR) in Houston, being buried in oilfields to push more oil out of the ground.
The plant is expected to capture 90 per cent of carbon dioxide from the flue gas stream and be operational in 2012.