 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
Co2 Storage In Coal Can Be Predicted Better
Amsterdam, Netherlands (SPX) Apr 17, 2007 CO2 storage in the ground is being considered increasingly more often in order to realise the climate and energy objectives. Dutch researcher Saikat Mazumder made it possible to better predict routes of the 'underground highways' along which gasses like carbon dioxide (CO2) and methane (CH4) will move. Moreover, coal was found to be highly suitable for filtering carbon dioxide out of waste gasses and storing it. The 'Enhanced Coalbed Methane process' kills two birds with one stone: carbon dioxide (CO2) is stored in coal seams in the ground and at the same time methane (CH4) is obtained from the process. To optimise this process it is important to know how coal retains and stores some fluids and gasses whilst allowing others through. The network of cracks is essential for this. Mazumder developed a measuring technique using CT scans that led to an improved understanding of the patterns of cracks. He also did experiments with waste gas and pure CO2 to determine the uptake capacity of single and multi-component gasses. In both wet and dry experiments, CO2 was strongly absorbed and CH4 was released. This methane production in a coal seam can vary over the course of time. Mazumder developed two estimating methods to gain a better understanding of this. When used together these could generate good predictions.
Problems due to swelling Mazumder also carried out a preliminary study into the decrease in porosity and permeability as a consequence of coal swelling due to the injection of CO2. The decrease in the permeability can give rise to serious injection problems in the area of the well into which CO2 is injected. The doctoral research 'Dynamics of CO2 in Coal as a Reservoir' was, amongst other things, part of the programme 'Transition to sustainable use of fossil fuels' funded by the NWO/SenterNovem Stimulation Programme Energy Research. The programme aims to develop knowledge in the natural and social sciences for the transition to a sustainable energy supply. Community Email This Article Comment On This Article Related Links Powering The World in the 21st Century at Energy-Daily.com Our Polluted World and Cleaning It Up China News From SinoDaily.com Global Trade News The Economy All About Solar Energy at SolarDaily.com Civil Nuclear Energy Science, Technology and News Powering The World in the 21st Century at Energy-Daily.com
Shanghai To Shut Down 29 Coal Power Plants By 2010
Shanghai (AFP) April 13, 2007China's financial hub Shanghai plans to shut 29 coal-fired power plants by 2010 in a renewed bid to reduce environmentally damaging carbon emissions, state press reported Friday. |
|
|
| The content herein, unless otherwise known to be public domain, are Copyright 1995-2006 - SpaceDaily.AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA PortalReports are copyright European Space Agency. All NASA sourced material is public domain. Additionalcopyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement |
