Utility tries ‘sequestration’ to block carbon emissions from atmosphere

Thu, 2007-03-15 09:16Bill Miller
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Utility tries ‘sequestration’ to block carbon emissions from atmosphere

The process – so far tested only at a laboratory scale, uses chilled ammonia to absorb gas for collection. It was developed by Alston, a major manufacturer of generating equipment, and aims to reduce the energy required to capture carbon dioxide.

It is estimated nearly a third of a power plant’s energy output might be needed to pull carbon dioxide from the waste stream. Alstom hopes to hold it to 15 percent. Researchers at the Massachusetts Institute of Technology yesterday called for prompt work on demonstrating sequestration technologies.

Costs must be kept as low as possible if the technology is to be used on a wide scale. Congress is seen as unlikely to impose enormously expensive restraints on emissions. And under proposals to cap emissions nationally and let companies trade credits for extra reductions, only the cheapest methods of reducing greenhouse gases would thrive in the marketplace.

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Fracking for natural gas

“We cannot solely rely on abundant gas to solve the climate change problem. The climate change problem requires a climate change solution. Abundant gas could be great for any number of things, but it is not going to solve the climate change problem.”

This statement was made by Haewon McJeon, the lead author on a new study published last week by Nature magazine, which concluded that...

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