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21 May 2009 — Southern Co. plans to demonstrate a carbon capture and sequestration technology on a coal-fired power plant operated by its Alabama Power unit.
The test will be done the Department of Energy, Mitsubishi Heavy Industries Ltd., the Electric Power Research Institute and other partners. As part of the project, Southern will build a demonstration facility to capture carbon dioxide emissions from an existing unit at the 2,657 MW Plant Barry near Mobile, Ala.
Beginning in 2011, between 100,000 and 150,000 tons of CO2 per year (equal to the emissions from 25 MW of the plant’s generating capacity) would be captured for storage in a deep saline geologic formation.
The CO2 will be supplied to DOE’s Southeast Regional Carbon Sequestration Partnership (SECARB), which will transport it by pipeline from the plant and store it underground at a site within the area of the Citronelle Oil Field, about 10 miles from the plant, operated by Denbury Resources. The Southern States Energy Board is leading the SECARB effort.
The CO2 capture technology to be used in this project, called KM-CDR, was developed by MHI and the Kansai Electric Power Co. Inc. It deploys an advanced amine-based solvent that reacts with CO2 in flue gas before being separated and compressed so that it is ready for pipeline transport.
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