CO2 Capture Using Electrical Energy Page: 1 of 1
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Advanced Research Projects Agency a ENERGY
UKL U INQ, LLLUIKIUAL LNLKQY
Electrochemically Mediated Separation for Carbon Capture and Mitigation
Massachusetts Institute of Technology (MIT) LOCATION:
7/16/10 - 7/15/12
Coal-fired power plants provide nearly 50% of all electricity in the U.S. While coal is a cheap and abundant natural resource, its
continued use contributes to rising carbon dioxide (C02) levels in the atmosphere. Capturing and storing this C02 would reduce
atmospheric greenhouse gas levels while allowing power plants to continue using inexpensive coal. Carbon capture and storage
represents a significant cost to power plants that must retrofit their existing facilities to accommodate new technologies.
Reducing these costs is the primary objective of the IMPACCT program.
PROJECT INNOVATION + ADVANTAGES
MIT and Siemens Corporation are developing a process to separate C02
from the exhaust of coal-fired power plants by using electrical energy to
chemically activate and deactivate sorbents, or materials that absorb gases.
The team found that certain sorbents bond to C02 when they are activated
by electrical energy and then transported through a specialized separator
that deactivates the molecule and releases it for storage. This method
directly uses the electricity from the power plant, which is a more efficient but
more expensive form of energy than heat, though the ease and simplicity of
integrating it into existing coal-fired power plants reduces the overall cost of
the technology. This process could cost as low as $31 per ton of C02 stored.
If successful, MIT's method would use electrical energy to store C02 at lower cost than current technologies, limiting the
increased cost of carbon capture and storage for coal-fired power plants.
" SECURITY: Enabling continued use of domestic coal for electricity generation will preserve the stability of the electric grid.
" ENVIRONMENT: Carbon capture technology could prevent more than 800 million tons of C02 from being emitted into the
atmosphere each year.
" ECONOMY: Improving the cost-effectiveness of carbon capture methods will minimize added costs to homeowners and
businesses using electricity generated by coal-fired power plants for the foreseeable future.
" JOBS: Retrofitting coal-fired power plants to capture and store carbon dioxide could create jobs in the U.S. manufacturing,
construction, and engineering sectors.
ARPA-E Program Director:
Dr. Karma Sawyer,
Dr. T. Alan Hatton,
ADVANCED RESEARCH PROJECTS AGENCY-ENERGY
202-287-5440 1 firstname.lastname@example.org
U.S DEPARTMENT OF
TEXT UPDATED: 5/25/2012
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Massachusetts Institute of Technology. CO2 Capture Using Electrical Energy, text, May 25, 2012; [Washington D.C.]. (digital.library.unt.edu/ark:/67531/metadc837360/m1/1/: accessed November 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.