/PRNewswire/ -- Southern Company has captured carbon dioxide from one of its power plants for the first time, a milestone that significantly advances the development of technology considered crucial to reducing greenhouse gas emissions from power generation.
The research accomplishment was achieved this month at subsidiary Georgia Power's Plant Yates near Newnan, Ga.
The pilot-scale project at Plant Yates, which uses a capture system developed by Mitsubishi Heavy Industries (MHI), will provide additional process improvements before the technology is demonstrated next year at a much larger 25-megawatt scale at Plant Barry, which is owned and operated by Southern Company subsidiary Alabama Power near Mobile, Ala.
During the pilot at Plant Yates, a small amount of carbon dioxide (CO2) was captured, using a solvent that absorbs CO2, and then returned to the plant's flue gas. At Plant Barry, the carbon dioxide will be compressed and transported via pipeline to deep underground storage formations.
"Capturing CO2 from an operating power plant is an important step forward in our efforts to develop effective and cost-efficient technologies to reduce carbon dioxide emissions while ensuring a continued reliable and affordable supply of electricity for our customers," said Chris Hobson, Southern Company chief environmental officer. "Along with our other carbon capture and storage research initiatives, our success here will help us move closer to the ultimate goal of commercial deployment."
Southern Company is a participant in several major research initiatives to advance the development of carbon capture and storage technology, a key component in the nation's effort to reduce greenhouse gas emissions.
In addition to the projects at Yates and Barry, Southern Company operates the National Carbon Capture Center for the U.S. Department of Energy near Birmingham, Ala., and its subsidiary Mississippi Power is building an advanced commercial-scale coal gasification power plant in Kemper County, Miss., that will include carbon capture and re-use for enhanced oil recovery. Other carbon capture and storage projects are under way or completed at other Southern Company facilities.
The test at Plant Yates will help confirm MHI's emission-control design and provide other findings important to the much larger-scale work next year at the Plant Barry test, which represents one of the industry's largest demonstrations of a start-to-finish power plant carbon capture and storage system.
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Showing posts with label emmissions. Show all posts
Showing posts with label emmissions. Show all posts
Friday, September 24, 2010
Monday, November 16, 2009
Reducing Greenhoue Gases May Not be Enough to Slow Climate Change
Georgia Tech City and Regional Planning Professor Brian Stone publishes a paper in the December edition of Environmental Science and Technology that suggests policymakers need to address the influence of global deforestation and urbanization on climate change, in addition to greenhouse gas emissions.
According to Stone’s paper, as the international community meets in Copenhagen in December to develop a new framework for responding to climate change, policymakers need to give serious consideration to broadening the range of management strategies beyond greenhouse gas reductions alone.
“Across the U.S. as a whole, approximately 50 percent of the warming that has occurred since 1950 is due to land use changes (usually in the form of clearing forest for crops or cities) rather than to the emission of greenhouse gases,” said Stone. “Most large U.S. cities, including Atlanta, are warming at more than twice the rate of the planet as a whole – a rate that is mostly attributable to land use change. As a result, emissions reduction programs – like the cap and trade program under consideration by the U.S. Congress – may not sufficiently slow climate change in large cities where most people live and where land use change is the dominant driver of warming.”
According to Stone’s research, slowing the rate of forest loss around the world, and regenerating forests where lost, could significantly slow the pace of global warming.
“Treaty negotiators should formally recognize land use change as a key driver of warming,” said Stone. “The role of land use in global warming is the most important climate-related story that has not been widely covered in the media.”
Stone recommends slowing what he terms the “green loss effect” through the planting of millions of trees in urbanized areas and through the protection and regeneration of global forests outside of urbanized regions. Forested areas provide the combined benefits of directly cooling the atmosphere and of absorbing greenhouse gases, leading to additional cooling. Green architecture in cities, including green roofs and more highly reflective construction materials, would further contribute to a slowing of warming rates. Stone envisions local and state governments taking the lead in addressing the land use drivers of climate change, while the federal government takes the lead in implementing carbon reduction initiatives, like cap and trade programs.
“As we look to address the climate change issue from a land use perspective, there is a huge opportunity for local and state governments,” said Stone. “Presently, local government capacity is largely unharnessed in climate management structures under consideration by the U.S. Congress. Yet local governments possess extensive powers to manage the land use activities in both the urban and rural areas.”
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According to Stone’s paper, as the international community meets in Copenhagen in December to develop a new framework for responding to climate change, policymakers need to give serious consideration to broadening the range of management strategies beyond greenhouse gas reductions alone.
“Across the U.S. as a whole, approximately 50 percent of the warming that has occurred since 1950 is due to land use changes (usually in the form of clearing forest for crops or cities) rather than to the emission of greenhouse gases,” said Stone. “Most large U.S. cities, including Atlanta, are warming at more than twice the rate of the planet as a whole – a rate that is mostly attributable to land use change. As a result, emissions reduction programs – like the cap and trade program under consideration by the U.S. Congress – may not sufficiently slow climate change in large cities where most people live and where land use change is the dominant driver of warming.”
According to Stone’s research, slowing the rate of forest loss around the world, and regenerating forests where lost, could significantly slow the pace of global warming.
“Treaty negotiators should formally recognize land use change as a key driver of warming,” said Stone. “The role of land use in global warming is the most important climate-related story that has not been widely covered in the media.”
Stone recommends slowing what he terms the “green loss effect” through the planting of millions of trees in urbanized areas and through the protection and regeneration of global forests outside of urbanized regions. Forested areas provide the combined benefits of directly cooling the atmosphere and of absorbing greenhouse gases, leading to additional cooling. Green architecture in cities, including green roofs and more highly reflective construction materials, would further contribute to a slowing of warming rates. Stone envisions local and state governments taking the lead in addressing the land use drivers of climate change, while the federal government takes the lead in implementing carbon reduction initiatives, like cap and trade programs.
“As we look to address the climate change issue from a land use perspective, there is a huge opportunity for local and state governments,” said Stone. “Presently, local government capacity is largely unharnessed in climate management structures under consideration by the U.S. Congress. Yet local governments possess extensive powers to manage the land use activities in both the urban and rural areas.”
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