Bob Hilton Discusses Obama's CCS Task Force Announcement
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About this video
Bob Hilton, Vice President of Power Technologies for Goverment Affairs at Alstom, discusses how the President's announcement of a CCS Task Force last week bears on the climate legislation debate. Alstom sees it as a positive development and agrees with the Administration - that while CCS has the potential to create jobs, a clear regulatory and legal framework is needed to allow the technology to continue to move toward commercialization.
Published: 02/09/10 1:53pm
Running Time: 07:40
Related Keywords: Politics, Congress (Politics), Power Generation (Coal), Power Generation (Natural Gas), Natural Gas, Coal, Clean Skies News, Bob Hilton, Alstom, Bob Hilton, carbon capture, CCS, Clean Coal, Climate Change, climate legislation, power plant, sequestration
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*This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License.
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CCS - Excessive Volume
CCS - Excessive Volume Required
It requires an excessively large volume to sequester worldwide CO2 produced from burning coal.
Dr. Stephen Chu contributed an editorial to Science Magazine (25 September 2009 issue) entitled "Carbon Capture and Sequestration" where he described the magnitude of the challenge of sequestering the CO2 the world generates from burning coal. In that editorial he wrote the following:
"At geological storage densities of CO2 (0.6 kg/m3), underground sequestration will require a storage volume of 30,000 km^3/year."
30,000 cubic kilometers of CO2 is equal to 7187.382 cubic miles. This is a show stopper of a large value which should call into question the wisdom of this approach.
7187.382 cubic miles of volume would be a rectangular trench 1 mile deep x 1 mile wide x 7187 miles long. The storage volume required to store the world's CO2 for one year would be a trench having 1 mile width and 1 mile depth and exceed twice the distance from Los Angeles to New York City.
The Secretary may have chosen a low value for geological storage densities of CO2 at 0.6 kg/m3, but if this figure is typical (and it is the value Secretary Chu provided and used in his Sept. 2009 Science Magazine Editorial) then the storage volume required to be found to sequester CO2 worldwide is excessive (7187.382 cubic miles) and this should be disclosed to the public.
It is just not practical to expect to generate storage volumes of this size on a year in and year out basis. There are no underground caverns or natural features that are close to this size and it is not practical to talk about excavating storage structures that are this large.
Why not rethink this goal of deploying CCS given the unrealistically large volume required to store the world's CO2 produced from burning coal?
Science Magazine Editorial: Carbon Capture and Sequestration
Friday, October 2, 2009 at 4:01pm
http://www.facebook.com/note.php?note_id=163040886856&id=79707582290&ref=mf