Carbon Sequestration
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May 24 | News
The current method of removing the greenhouse gas carbon dioxide from the flues of coal-fired power plants uses so much energy that no one bothers to use it. So says Roger Aines, principal investigator for a team that has developed an entirely new catalyst for separating out and capturing carbon dioxide, one that mimics a naturally occurring catalyst operating in our lungs.
May 21 | News
Researchers at Massachusetts Institute of Technology are evaluating a system that efficiently eliminates nitrogen from the combustion process, delivering a pure stream of carbon dioxide after removing other combustion byproducts such as water and other gases.
May 18 | News
While many are focusing on atmospheric solutions to reduce greenhouse gases, some researchers are setting their sights on the ground—deep underground. Li Li, an assistant professor of energy and mineral engineering at Penn State University, is investigating geologic carbon sequestration as a way to reduce the amount of carbon dioxide in the atmosphere.
Mar 20 | News
A new study by researchers at Massachusetts Institute of Technology shows that there is enough capacity in deep saline aquifers in the United States to store at least a century's worth of carbon dioxide emissions from the nation's coal-fired power plants. Though questions remain about the economics of systems to capture and store such gases, this study addresses a major issue that has overshadowed such proposals.
Mar 1 | News
Approximately 75% of electricity used
in the United States
is produced by coal-burning power plants that spew carbon dioxide into
the
atmosphere and contribute to global warming. To reduce this effect, many
researchers are searching for porous materials to filter out the carbon
dioxide
generated by these plants before it reaches the atmosphere, a process
commonly
known as carbon capture. But identifying these materials is easier said
than
done.
Feb 29 | News
Just as a wine glass vibrates and sometimes breaks when a
diva sings the right note, carbon dioxide vibrates when light or heat
serenades
it. When it does, carbon dioxide exhibits a vibrational puzzle known as
Fermi
resonance. Now, researchers studying geologic carbon storage have
learned a bit
more about the nature of carbon dioxide.
Feb 8 | News
Filtering carbon dioxide, a greenhouse gas, from factory smokestacks is a necessary, but expensive part of many manufacturing processes. However, a collaborative research team from NIST and the University of Delaware has gathered new insight into the performance of a material called a zeolite that may stop carbon dioxide in its tracks far more efficiently than current scrubbers do.
Jan 18 | News
For some time, researchers have explored flammable ice for low-carbon or alternative fuel or as a place to store carbon dioxide. Now, a computer analysis of the ice and gas compound, known as a gas hydrate, reveals key details of its structure. The results show that hydrates can hold hydrogen at an optimal capacity of 5 weight-percent, a value that meets the goal of a U.S. Department of Energy standard and makes gas hydrates practical and affordable.
Jan 5 | News
A demonstration project on the southeastern tip of Australia has helped to verify that depleted natural gas reservoirs can be repurposed for geologic carbon sequestration. The project, which includes scientists from Lawrence Berkeley National Laboratory, also demonstrated that depleted gas fields have enough carbon dioxide storage capacity to make a significant contribution to reducing global emissions.
12/6/2011 | News
Since most of the world's governments have not yet enacted regulations to curb emissions of greenhouse gases, some experts have advocated the development of technologies to remove carbon dioxide directly from the air. But a new Massachusetts Institute of Technology study shows that, at least for the foreseeable future, such proposals are not realistic because their costs would vastly exceed those of blocking emissions right at the source, such as at the powerplants that burn fossil fuels.
