Navigation Links
Storing carbon dioxide deep underground in rock form
Date:6/16/2010

KNOXVILLE -- As carbon dioxide continues to burgeon in the atmosphere causing the Earth's climate to warm, scientists are trying to find ways to remove the excess gas from the atmosphere and store it where it can cause no trouble.

Sigurdur Gislason of the University of Iceland has been studying the possibility of sequestration of carbon dioxide (CO2) in basalt and presented his findings today to several thousand geochemists from around the world at the Goldschmidt Conference hosted by the University of Tennessee, Knoxville, and Oak Ridge National Laboratory.

Carbon sequestration is currently the most promising way to reduce greenhouse gases. Gislason leads an international team of scientists on the Carbfix Project, which aims at pumping carbon deep underground in southwest Iceland where it will mix with minerals and become rock. The project's goal is to find a storage solution that is long lasting, thermodynamically stable and environmentally benign.

An Icelandic geothermal plant is now hosting the pilot program. Gislason's project involves capturing and separating flue gases at the Hellisheidi Geothermal Power Plant, transporting the gas, dissolving it in water, and injecting it at high pressures to a depth between 400 and 800 meters into a thick layer of basalt. Then he and his coworkers will verify and monitor the storage.

Carbon dioxide mixed with water forms carbonic acid (also known as carbonated water or soda water), which percolates through the rocks, dissolving some minerals and forming solid carbonates with them, thereby storing the carbon dioxide in rock form, said Gislason.

If successful, Gislason said, the experiment will be scaled up and can be used wherever carbon dioxide is emitted. Currently, carbon may be captured as a byproduct in processes such as petroleum refining. It can be stored in reservoirs, ocean water and mature oilfields. However, many experts fear that CO2 may leak over time. Storage of CO2 as solid magnesium carbonates or calcium carbonates deep underground in basaltic rocks may provide a long-term and thermodynamically stable solution.


'/>"/>

Contact: Whitney Holmes
wholmes7@utk.edu
865-974-5460
University of Tennessee at Knoxville
Source:Eurekalert

Related biology news :

1. Restoring a natural root signal helps to fight a major corn pest
2. Restoring Alabamas coast
3. Restoring fish populations leads to tough choice for Great Lakes Gulls
4. Window of opportunity for restoring oaks small, new study finds
5. Restoring sight, advances in fertility treatments and better visibility for pilots at FIO
6. Beyond batteries: Storing power in a sheet of paper
7. Geochemist raises questions about carbon sequestration at Goldschmidt Conference
8. Delineating primary and secondary organic carbon in neoproterozoic glacial sediments
9. ORNL sows seeds with new agricultural carbon accounting tool
10. The search for improved carbon sponges picks up speed
11. Winners of ONRs Energy Challenge to help Navy reduce its carbon footprint
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/3/2016)... LONDON , June 3, 2016 /PRNewswire/ ... Transport Management) von Nepal ... ,Angebot und Lieferung hochsicherer geprägter Kennzeichen, einschließlich ... weltweit führend in der Produktion und Implementierung ... an der Ausschreibung im Januar teilgenommen, aber ...
(Date:6/2/2016)... June 2, 2016 Perimeter Surveillance ... Unmanned Systems, Physical Infrastructure, Support & Other Service  ... visiongain offers comprehensive analysis of the global ... will generate revenues of $17.98 billion in 2016. ... Inc, a leader in software and hardware technologies for ...
(Date:5/20/2016)... 20, 2016  VoiceIt is excited to announce ... By working together, VoiceIt and VoicePass ... and VoicePass take slightly different approaches to voice ... security and usability. ... new partnership. "This marketing and technology ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... SILVER SPRING, Md. , June 23, 2016 ... evidence collected from the crime scene to track the criminal ... sick, and the U.S. Food and Drug Administration (FDA) uses ... Sound far-fetched? It,s not. ... whole genome sequencing to support investigations of foodborne illnesses. Put ...
(Date:6/23/2016)... 2016  The Biodesign Challenge (BDC), a university competition ... harness living systems and biotechnology, announced its winning teams ... New York City . The ... projects at MoMA,s Celeste Bartos Theater during the daylong ... senior curator of architecture and design, and Suzanne ...
(Date:6/23/2016)... ... , ... In a new case report published today in STEM CELLS Translational ... lymphedema after being treated for breast cancer benefitted from an injection of stem cells ... this debilitating, frequent side effect of cancer treatment. , Lymphedema refers to ...
(Date:6/23/2016)... YORK , June 23, 2016 ... trading session at 4,833.32, down 0.22%; the Dow Jones Industrial ... S&P 500 closed at 2,085.45, down 0.17%. Stock-Callers.com has initiated ... INFI ), Nektar Therapeutics (NASDAQ: NKTR ), ... Therapeutics Inc. (NASDAQ: BIND ). Learn more about ...
Breaking Biology Technology: