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American Chemical Society's weekly PressPac -- Feb. 27, 2008
Date:3/3/2008

sity of Hamburg
Hamburg, Germany
Phone: 49-40-42838-4353
Fax: 49-40-42838-4342
Email: angelika.paschke@uni-hamburg.de


ARTICLE #3 FOR IMMEDIATE RELEASE

Promising new material for capturing CO2 from smokestacks
Journal of the American Chemical Society

Scientists and engineers in Georgia and Pennsylvania are reporting development of a new, low-cost material for capturing carbon dioxide from the smokestacks of coal-fired electric power plants and other industrial sources before the notorious greenhouse gas enters the atmosphere. Their study is scheduled for the March 19 issue of the ACS Journal of the American Chemical Society, a weekly publication.

In the new study, Christopher W. Jones and colleagues point out that existing carbon capture technology is unsuitable for wide use. Absorbent liquids, for instance, are energy intensive and expensive. Current solid adsorbents show promise, but many suffer from low absorption capacities and lack stability after extended use. Stronger, longer-lasting materials are needed, scientists say.

The scientists describe development of a new solid adsorbent coined a hyperbranched aminosilica (HAS) that avoids those problems. When compared to traditional solid adsorbents under simulated emissions from industrial smokestacks, the new material captured up to seven times more carbon dioxide than conventional solid materials, including some of the best carbon dioxide adsorbents currently available, the researchers say. The material also shows greater stability under different temperature extremes, allowing it to be recycled numerous times. MTS

ARTICLE #3 FOR IMMEDIATE RELEASE Designing Adsorbents for CO2 Capture from Flue Gas-Hyperbranched Aminosilicas Capable of Capturing CO2 Reversibly

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Contact: Michael Woods
m_woods@acs.org
202-872-4400
American Chemical Society
Source:Eurekalert  

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