CO2 Sequestration by Dave Kahn Submitted to Dr. Thomas Edgar - ChE 379 Outline • Global Warming • Costs • Technical Description • Leakage • Research Efforts • Conclusions • References • Questions Global Warming source: wikipedia.com Global Warming source: http://www.environment.sa.gov.au/sustainability Global Warming source: wikipedia.com Costs • carbon dioxide capture would add 1.5 cents/kWh • carbon dioxide is already being separated via power station flue gases for applications in the food industry Technical Description http://www.co2captureproject.org/technologies/tech_img2.gif Leakage The Frio Brine Project source: www.greencarcongress.com Leakage •To date, no leakage has been detected • However, the study has shown that after the carbon dioxide is sequestered, the chemical properties of the water and the dissolved inorganic carbon change • Changes include: •sharp drops in pH •pronounced increases in alkalinity •significant shifts in the isotopic compositions •Also, it has shown that the CO2 can degrade carbonate substances in the rock Research Efforts Project Name Capacity Comments Initial inj.: 30 kt/yr K12B 2006+: 0.4 Enhanced gas recovery demo project.Total: 8 MMt MMt/yr Designed: 20 t/d Injection into coal seam has been more difficult RECOPOL Achieved: 1- than expected. 1.3 t/d Horizontal wells have been drilled. Total: 3 Mt Injection rate: 2 t/d CO2 -ECBM test project. Hokkaido Total Spring 2005 wells will be refurbished injected: 24 t and new more extensive CO2 injection test planned. Conclusions • The Earth is warming! • CO2 capture for sequestration would add ~15% to untaxed energy bill • Sequestration can increase oil recovery efficiency by 10-15% • It has not yet been shown to leak • It has however shown potential for leakage channeling • Recommendations – Much more research References “CO2 Capture and Storage.” CO2 Emissions Database. IEA Greenhouse Gas R&D Programme. 21 Nov. 2006 <http://www.co2captureandstorage.info/>. “Global Warming.” Wikipedia.com. 20 Nov. 2006. 21 Nov. 2006 <http://en.wikipedia.org/wiki/Global_warming>. “Potential Leakage and Toxicity Problems with CO2 Sequestration.” Green Car Congress. 31 July 2006. Green Car Congress. 21 Nov. 2006 <http://www.greencarcongress.com/2006/07/potential_ leaka.html>. Quashning, Volker. Homepage of Dr. Volker Quashning. 21 Dec. 2001. Plataforma Solar de Almería . 21 Nov. 2006 <http://www.volker-quaschning.de/index.html>. “sequestration.” Dictionary.com. 2006. 10 Nov. 2006 <http://dictionary.reference.com/browse/sequestration>. ? Questions ?
Pages to are hidden for
"CO2 Sequestration"Please download to view full document